Vol 2, No 2 (2008)
- Year: 2008
- Articles: 72
- URL: https://journals.eco-vector.com/2074-0530/issue/view/3812
Articles
7-8
8-10
Analysis of Smoothness of Truck Vehicle Running with the Coupled System of Cushioning
Abstract
The subject of the paper is the increasing of the smoothness of truck vehicle running due to application of coupled system of cushioning. On the basis of the given mathematical model it becomes possible to determine the basic characteristics of smoothness of truck vehicle running with the coupled system of cushioning. To prove of reasonability of use of coupled system of cushioning on the trucks the authors compares some experimental and calculated characteristics of the smoothness of truck vehicle running with individual and coupled systems of cushioning.
Izvestiya MGTU MAMI. 2008;2(2):10-14
10-14
The Algorithm and Calculations of Electro-Magnetic Injector for Gasoline Engine
Abstract
The article describes the principal scheme of modern gasoline engine electro-magnetic injector (EMI). The authors present the oscillogram temporary fragments of transitional processes of EMI and the principal scheme of control impulses' formation.
Izvestiya MGTU MAMI. 2008;2(2):14-19
14-19
The Development of Laser-Spark System of Ignition for the Transport Engine
Abstract
The concept of perfection of laser-spark system of ignition of the transport engine is described. The mechanism of efficiency of laser-spark system of ignition modern ICE is explained. Basic and constructive schemes of the control system and their components are developed. Results of tests are derived.
Izvestiya MGTU MAMI. 2008;2(2):19-23
19-23
23-30
Methodological Approaches to Safety System Development for Motor Transport Complex on the Basis of Risk Management Subject to Design Reliability Requirements
Abstract
The scientific ideas about possibility of using a new risk model for the prediction of appearance of dangerous situations in transport complexes is developed. Catastrophe risks are evaluated as measurable random events in the framework of probability space theory.
Izvestiya MGTU MAMI. 2008;2(2):30-42
30-42
Risk and Reliability Management for Motor Transport on the Basis of Monitoring of Features of Operating Vehicles
Abstract
One of the scientific concepts for the system operation of safety providing - monitoring and risk and reliability management - is developed. The paper offers an approach for the creation of instruments, procedures, methods and controls for measuring of risks significance in the transport complex.
Izvestiya MGTU MAMI. 2008;2(2):42-49
42-49
On the Problem Statement for Adoption of IT
Abstract
The article is about the problems of evaluation of informational technologies at the technical-organizational systems control. To build the criteria of evaluation, one should consider the system consisted of separate modules with appointed functions. The author notes the significance of choosing algorithm of information processing and the necessity of evaluation of possibilities of control decision of mechanical implementation for logical design.
Izvestiya MGTU MAMI. 2008;2(2):50-51
50-51
Improvement of Ecological and Energy Indexes of FWD Vehicles with Hydrostatic Transmission due to the Optimal Development of Electronic Control System
Abstract
Nowadays the application of variable-speed transmissions (mainly, electric and hydrostatic ones) is considered to be the most perspective for all-wheel drive cars. In given article is considered hydrostatic transmission which is the best object for creation of an automatic control system. There is a possibility of optimisation of characteristics of any object adapted for automatic regulation. In article conditions of optimisation of power indicators of the car on criterion of minimisation of the general losses of capacity, and ecological indicators of the car by criterion of minimisation of size of slipping are resulted. The example of practical realisation of the car with the hydrostatic transmission, having automatic control system is resulted.
Izvestiya MGTU MAMI. 2008;2(2):51-56
51-56
The Influence of Channel Geometry on the Refrigeration Rate of Ball Bearings of High-Speed Turbocharger with the Help of Waste Pack Lubrication
Abstract
The paper examines the influence of channel geometry on hydrodynamics of an oil-air mix for the purpose of increasing the intensity of heat exchange from a ball-bearing support of high-speed turbocharger. The parametrical analysis of channel geometry is carried out and the optimum variant of cooling which would raise concentration of oil on the internal ring of the bearing is chosen.
Izvestiya MGTU MAMI. 2008;2(2):56-59
56-59
The Automobile Suspension Static Strength and Durability Analysis at the Design Stage
Abstract
The article presents technology of car suspensions static strength and durability analysis, developed in AVTOVAZ company and applied on the vehicle concept development phase. Wide application of CAD/CAE technologies enables on early development stage to determine parameters of vehicle suspension typical operation modes and then quickly evaluating design capacities, basing on virtual testing results analysis. Usage of developed methods allows to enhance the quality of project and at the same time, to reduce time and costs of vehicle suspension development.
Izvestiya MGTU MAMI. 2008;2(2):59-64
59-64
64-67
Vehicle Power-Supply System for Two On-Board Voltage Levels
Abstract
In connection with outlined tendency to step up on-board voltage (42/36 V) the paper considers the possibility of gradual partial transfer on two voltage levels: traditional 12 V and prospective 36 V. Supplementary voltage 36 V formed by electronic way by effective transistor voltage transducer. The paper considers theirs electric circuits and examines specifics of their work.
Izvestiya MGTU MAMI. 2008;2(2):67-70
67-70
The Structure and Interconnections of Part Precision Factors and Couplings and the Ways to Reduce Errors at Internal Combustion Engine Production
Abstract
The problem of providing of a demanded level of accuracy of details and conjugations at manufacturing and assembling of diesel engine is presented as a many-sided problem for solution of which the structure and interrelation of factors influencing on initial operational accuracy of details and conjugations is offered. For the first time the concept of initial operational accuracy is introduced. The mechanism of formation and inheritance of the errors is discovered, allowing to find a stock of accuracy of details and its quantity.
Izvestiya MGTU MAMI. 2008;2(2):70-74
70-74
The Mathematics Model of Mechanism Forming the Spot Face of Rolling Wheel
Abstract
The mathematics model of mechanism which forms the spot face of rolling wheel is offered. It allows solving tasks involved in design and calculation of wheel propeller of different constructions, determining theirs numerical and qualitative characteristics when moving on different types of surface.
Izvestiya MGTU MAMI. 2008;2(2):74-79
74-79
Matching of Tractor Diesel Engines and Transmissions Indices
Abstract
The article outlines the analysis and proposals based on it, justifying the rational combination of the characteristics of diesel engines and transmissions (gearboxes) of wheeled tractors and agricultural tractors. The author uses quite modern models of tractors of well-known companies. The conclusions are based on practice of ECP (engines constant power) for the vast majority of tractors.
Izvestiya MGTU MAMI. 2008;2(2):79-85
79-85
Kinematic Matching of Engine and Transmission of Vehicles
Abstract
Article contains results of the theoretical analysis revealed by practice of ZIL trucks drawback. Stability of work of the engine is analyzed at acceleration with gear shift. The inequality describing a condition of engine steady work is deduced. In article the kinematic coordination of various models of ZIL trucks is considered and it is noticed that truck ZIL-5301BE has kinematic in coordination of engine and transmission. Ways of its overcoming are shown. The Law on higher education and after graduate professional education of Russian Federation as one of the tasks of higher institute provides the use of scientific researches in educational process. The authors offer the results to students of Moscow state industrial university in the lectures on special disciplines.
Izvestiya MGTU MAMI. 2008;2(2):86-90
86-90
New Composite Resilient Member
Abstract
Article is devoted to development of design and methodic of projecting the new type of resilient member, generated out of composite material. The construction, its schemes of loading, the result of optical and FEM modeling of elastic element, the results of experiences with the designed samples of elastic elements attached. On the basis of the given investigations the authors made the conclusions and recommendations for receiving the demanded characteristics of rigidity during homogeneous mode of deformation-stress of element. The example of design of suspension bracket with use of new type elastics element, created from composite material is resulted.
Izvestiya MGTU MAMI. 2008;2(2):90-99
90-99
99-104
Thermoemission Properties of Alloys on the Basis of Refractory Metals
Abstract
This work presents an experimental investigation of influence of structural condition and thermal treatment on the thermoemission properties of the refractory alloys. It has been found that the combination of high-temperature strength and thermoemission is reached by creation of certain volume and surface structural conditions of cathodes.
Izvestiya MGTU MAMI. 2008;2(2):105-107
105-107
Improvement of Geometrical Parameters of Surface Quality in Process of Broaching on the Basis of Modernization of Cutting Tool Design
Abstract
On the basis of mathematical model of forming process during the push broaching the authors investigated the influence of dynamic fluctuation of roughing tooth tip on the geometrical parameters of work piece surface quality. The obtained results allowed offering recommendations on the work piece surface quality improvement on the basis of modernization of cutting tool design.
Izvestiya MGTU MAMI. 2008;2(2):107-117
107-117
Bipolar Electrode as Means of Synergetic Control Strategy Realization for Electrochemical Working of Parts
Abstract
The electrochemical machining (ECM) is based on the various simultaneous interacting processes: chemical, thermal, electrical ones, masstransfer processes and others. The application of principles of synergetics allowed coordinating the process control on the basis of order parameter of anode current density related to with the hygrodynamics and composition of the electrolyte, electrode voltage and others properties of ECM . The realization of synergetics principles is carried out on the basis of use of bipolar electrode, which functions as the self-controlled mechanism.
Izvestiya MGTU MAMI. 2008;2(2):117-122
117-122
Change of Vibration Safety of Industrial Objects in Reconstruction of External Environment
Abstract
The changes in vibration safety of industrial objects in the conditions of reconstruction of external environment. The authors carried out the experimental research of vibrational speed levels changes in the buildings structures at different shop floors of NPO IT. The paper presents the necessary calculations which allow choosing appropriate shock-absorbers, which compensate vibration transmitting from internal work process at NC machine to control unit, as well as external vibration. The diagram of shock-absorbers installation directly in the concrete bottom is offered. To provide the general safety of new industrial building a special substructure absorbing external vibration is proposed. Some practical recommendations are given.
Izvestiya MGTU MAMI. 2008;2(2):122-125
122-125
Improving of Set of Tooling Quality (glass forms) by means of CAD System KOMPAS 3D V8
Abstract
At present glasswork is characterized by following shortcomings: lack of modern progressive high technologies and narrow assortment of products. Thereby the developed automated program complex based on COMPASS 3D v8 allows to raise profitability of glasswork by cost cutting for a complete set of tooling - the glass forms for production of glass containers of the original forms under conditions of small-scale manufacture.
Izvestiya MGTU MAMI. 2008;2(2):125-128
125-128
Simulation of Tooling System Rigidity for Estimation Their Influence on Working Accuracy
Abstract
Moskovsky podshipnik enterprise uses the tool machine RAV-130 by Verkon company, Ukrain instead of 16K20F3 machine tool for treatment of radial ball bearing race. This tool allowed increasing productivity and working accuracy. The working accuracy was improved by design of tool carrier. This was proved-out by tooling system simulation of 16K20F3 and PAB-160 machines using Solid Works software. To investigate simulation objects the authors used COSMOS Works integrated package. Solid modeling demonstrated the advantages of design of tool carrier of PAB-160. This simulation can be applied when choosing new tool machines.
Izvestiya MGTU MAMI. 2008;2(2):129-135
129-135
Velocity Profile in Cell of Granulated Medium (Adapted Model of Stokes Flow around Ball)
Abstract
The model of liquid flow in the window between balls of granulated medium is developed. Equations for local velocity of the flow in any point of the window and its surround are obtained. Particular forms of local velocity equations are given (velocity profile for points placed on the window diagonal).
Izvestiya MGTU MAMI. 2008;2(2):135-143
135-143
143-146
Euler Elastics and its Application
Abstract
In engineering practice the solutions of nonlinear differential equations assume ever greater importance. Euler equation of elastic is the particular solution of such kind. The paper examines approximate solution and its applications. The comparison with previously obtained results is made.
Izvestiya MGTU MAMI. 2008;2(2):147-152
147-152
End Flexures of Circular Cylindrical Shells before Stability Loss under Uniform External Pressure
Abstract
To describe the axisymmetric deformation of circular cylindrical shell under uniform transversal pressure or in the condition of uniform compression the Marherr equation is used. The paper examines the bedding-in of the shell at the support contours at the condition of free axial displacement or without it. For the given boundary problems the analytical solutions in primitive functions is obtained and the main loading line of the shell is drown up.
Izvestiya MGTU MAMI. 2008;2(2):152-157
152-157
Software and Mathematical Support of Automated High-precision Laser Calibration System with optically reverse channels
Abstract
The problems of the high-precision and automated control are actual for all branches of modern mechanical engineering. The main control problems in mechanical engineering can be effectively solved only with the use of computer laser measuring systems with two optical the turned channels (LMS TOTC). The following issues are described in the article: the developed program-algorithmic solutions for multi channel precision measuring systems automation (which can be integrated into operating automated control systems of technological processes); software of supervision, gathering, record and storage of the measuring information, and also automated data processing and objects visualization means and controlling methods are considered.
Izvestiya MGTU MAMI. 2008;2(2):157-165
157-165
Solving of Tasks with Flat Triangular Element in Face Surface Models
Abstract
For the mathematical presentation of flat triangular element its parametric approximation is offered. The possibility of such approximations is shown. The area of changing parameters is determined. Actual for the CAD geometric problems with flat triangular elements such as the determination of accessories of spot to the triangle, determination of cross point direct and planes of triangle, spots projection on the plane of triangle is considered. Algorithms of their deciding and given evaluations of calculations volume are offered. Long-term use of considered methods of problems solution in the of applied software has shown theirs efficiency and high reliability.
Izvestiya MGTU MAMI. 2008;2(2):165-168
165-168
Theoretical problems of foreign language studying
Abstract
The authors recommend universities to change the method of foreign language learning. The study of foreign languages will not be efficient without the knowledge worked out by the particular foreign language speaking country. According to this the program for foreign language study should be interdisciplinary.
Izvestiya MGTU MAMI. 2008;2(2):169-173
169-173
Application of management system for public administration of Russia
Abstract
The article analyses shortcomings of medium-term programs in the Russian Federation which should provide, first of all, competitiveness of national and regional economy and thereby proves reforming of the system of public administration on the basis of methods of management: systems the balanced parameters; strategic planning; management on the purposes; material stimulation.
Izvestiya MGTU MAMI. 2008;2(2):173-179
173-179
Basic orientation of current enterprise technological policy
Abstract
The article reviews the factors stimulating industrials to intensification of technological policy; quick analysis of possible sources for investment of technological policy; problems of transition to active technological policy; outline of basic forms of fixed capital stock reproduction. The article indicates necessity of keeping of optimum relationship between all forms of fixed capital stock reproduction.
Izvestiya MGTU MAMI. 2008;2(2):179-185
179-185
Assessment and certification of personnel
Abstract
Improvement of personnel management quality is a basis for effective work of the whole organizational system. The article is devoted to a problem of an assessment and certification of personnel of the organization. It presents professiogram, the technique of personnel assessment.
Izvestiya MGTU MAMI. 2008;2(2):186-187
186-187
188-191
191-196
Demonstration Experiments of Light Polarization in Physics course
Abstract
The article presents layout of experiments for observatiion of polarizing effects on light passage through crossed polarizers. Addition of the third polarizer leads to appearance of light on the screen. Experiment is for cases with a laser light source, reflection of light under the Brewster's angle. Photos of the installations realizing the given effects are resulted.
Izvestiya MGTU MAMI. 2008;2(2):197-199
197-199
199-201
Statistical Model for Evaluting Efficiency of the Wireless Computing Networks Functioning in the ESS Mode
Abstract
The considered model allows: 1) in the analysis mode to evaluate the efficiency of WLAN which functions in the mode ESS taking into account collisions of data packets-receipts transmitted through low duality communication channels, and 2) in the synthesis mode to select the threshold value of P, determining a rational combination of base access mechanisms and RTS/STS .
Izvestiya MGTU MAMI. 2008;2(2):201-205
201-205
Student small-scale enterprises on the basis of University
Abstract
The article is devoted to formation of Student's marketing agency within frames of university. It allows to fix the knowledge received on theoretical rates of studied disciplines in practice. In addition it also carries out other functional loadings.
Izvestiya MGTU MAMI. 2008;2(2):205-208
205-208
Formation of Conflictological Competence in Higher Education System
Abstract
The article reviews conditions and mechanisms of forming conflictological competence in higher education which is based on the idea of contextual education. Methods of mathematic statistics for relation between future managers and their studying in the university are used as an example of experimental part.
Izvestiya MGTU MAMI. 2008;2(2):208-214
208-214
Development of Research on Assembly Technique at Manufacturing Engineering Department
Abstract
The article reviews academic papers on assembly technique composed at Manufacturing Engineering Department of MSTU MAMI at various times. There are results of scientific and practical works on assembly quality assurance for automotive gears, on assembly with glue and vibroassembly.
Izvestiya MGTU MAMI. 2008;2(2):215-218
215-218
Preselection and Optimization of Reliability of Automatic Assembly Equipment
Abstract
The low level of reliability and high cost of assembly equipment do not secure the possible economical efficiency. Thаt is why it is very important to optimize the assembly unit performance at the designing stage. The main aim of this work is to choose the required performance of assembly modules using the proportional allotment of unit components reliabilities to increase the automotive production efficiency. This method will make it possible to analysis the most varied combinations of unit reliability to get the required production efficiency.
Izvestiya MGTU MAMI. 2008;2(2):218-227
218-227
228-231
231-236
Analysis of Anaerobic Product Properties in Fluid and Aggressive Environments
Abstract
The article presents the results of experiments involved in investigation of properties of some domestic and foreign-made anaerobic materials in components and units operating in fluid and aggressive environments. These experiments determined the strength and swell values of anaerobic products in the sea water, fuel and oil, and confirmed their anticorrosion properties. The experiments demonstrated high resistance of anaerobic products to various fluids and aggressive environments, which makes them applicable in different installations operating in such conditions.
Izvestiya MGTU MAMI. 2008;2(2):236-239
236-239
Flexible Module Assembling Technologies
Abstract
The article deals witch the development of scientific foundations for automatically module technologies of the flexible automatic assembling production. A complex model of process of flexible automatic module assembling has been created. This complex makes it possible to reveal the regularities of its passage as a set of all kinds of connections. The flexibility in such systems is provided at construction, technological, algorithmic levels being estimated by the adjustment coefficient.
Izvestiya MGTU MAMI. 2008;2(2):240-248
240-248
Support of Thermal Heater Connection Assembling Quality
Abstract
The paper examines the assembly technology based on the connection adjustment method, which allows to determine the optimal special location of fellow pieces. The designed procedure allows to forecast the coefficient of efficiency of a workpiece at an assembly stage.
Izvestiya MGTU MAMI. 2008;2(2):248-255
248-255
Bench assembly for diesel engine tests with water injection in an inlet collector
Abstract
The paper describes the assembly of the motor bench for toxicity, profitability and capacity tests of diesel engine. The authors estimate the thermal balance at water injection in an inlet collector. Recommendations for the choice of devices for measurement of these parameters are given.
Izvestiya MGTU MAMI. 2008;2(2):255-259
255-259
259-263
263-270
Features of Cylindrical Pressure Coupling Assembly by Combined Heat-glue Method
Abstract
Application of the combined adhesive-heat method for making shrink-fit cylindrical joints is described. The results of experimental studies shrink-fit joints on samples with 60mm nominal diameter and 0.01-0.07mm interference are discussed. It is shown that the combined adhesive-heat method produces joints as strong as those produced by thermal method but with interference 2-8 times less.
Izvestiya MGTU MAMI. 2008;2(2):270-274
270-274
Simulation Model of Preproject Calculation of Assembling Equipment Parameters
Abstract
The author of this article decides the optimization problem of the mart-up and assembly equipment parameters using two main factors. Original method of technological processes and special equipment design using uninterrupted functions instead of comparing the numerous discrete technological processes variants at preliminary design stage.Multi-parameters, multi-factors and multi-criterions imitation model of the machine-tool and assembly automotive production guaranteeing calculation and optimization of the main parameters of technological processes and equipment.
Izvestiya MGTU MAMI. 2008;2(2):274-279
274-279
Optimization of Park Structure and Parameters of Assembly Equipment in Automotive Manufacture
Abstract
The fulfillment of the main automotive production requirements such as quality, productivity and economic efficiency are determined by the structure and parameters of the technological equipment. The structure and parameters of the equipment are stipulated during preparation of design task and there are many wrong decisions can pass at this stage. As the result the draft equipment task the user set, the technical offer of the machine-tool firm, the agreed and the high quality and the essential condition to order new systems. The main aim of this work is to perfect the make up and parameters of machining and assembly equipment to increase the automotive production efficiency.
Izvestiya MGTU MAMI. 2008;2(2):279-287
279-287
287-290
Determination Efficiency of Automated Assembly of Synchronous Stepping Motor in Serial Production
Abstract
Efficiency of the designed assembly system was examined from the point of view of its productivity. There is a relation between production time, amount of product lot of, time of the system readjustment and time of the elimination of failures.
Izvestiya MGTU MAMI. 2008;2(2):290-295
290-295
Technological Quality Assurance of Assembling
Abstract
The paper offers the concept of system examination of product-technology-equipment precision interaction. This concept is intended to develop a general methodology of technological object creation. It includes the sections of precision analysis of output accuracy parameter configuration for assembly and technological process and assembly equipment synthesis.
Izvestiya MGTU MAMI. 2008;2(2):295-302
295-302
Optimization of individual selection for multiselection dimensional chains
Abstract
The article examines issues of quality improvement by optimization of the individual selection for parts with multiselection dimensional chains. There is an algorithm which ensures high quality of products close to maximal achievable with little labor input.
Izvestiya MGTU MAMI. 2008;2(2):302-309
302-309
Passive-active Relative Orientation in Automatic Assembly
Abstract
The article presents automated assembly at passive-active relative orientation. The research deals with automated equipment for assembly of cylindrical couple with clearance, using device for passive-active relative orientation (remote centre of compliance and active table). There is an equation determined for contact force along assembly axes used for control of process. The mentioned forces are experimentally defined.
Izvestiya MGTU MAMI. 2008;2(2):309-314
309-314
Influence of Operation and Assembly Interaction of Pipe Valves on Their Quality Rating
Abstract
The article reviews the features of designs of pipeline valves, quality indicators, influence of conditions of operation on their working capacity and an assemblage role in quality maintenance. Influence of assembly interactions on a condition of its elements is shown by an example of vacuum valves.
Izvestiya MGTU MAMI. 2008;2(2):314-317
314-317
Simulation Point-drop Processes with Assembly Error of Thermal Heater Connection
Abstract
The article considers the heuristic model development procedure of point processes of the drop vortex flows in a closed interval of an annular gap of the thermal preheater pipe unit. There is influence of inaccuracy of an annular gap of the pipe connection unit on point processes of the thermal preheaters drop flows.
Izvestiya MGTU MAMI. 2008;2(2):317-323
317-323
Control of Machinery Quality Parameter Inheritance during restoration, working, assembly and operation of machinery
Abstract
The article offers the methodology of the statistical analysis of technological and operational inheritance of machinery quality parameters. There is a basic difference of inheritance in technological process of working face restoration from inheritance in rational process of parts machining.
Izvestiya MGTU MAMI. 2008;2(2):323-329
323-329
Advance Estimation of Quality and Competitiveness of Products in Flexible Automatic Assembly
Abstract
The article shows the methods of passing ahead determination of quality and competitiveness products which are started in flexible production. The paper considers influence of various factors of expenses, indexes of quality, cost of exploitation and market price, management and marketing.
Izvestiya MGTU MAMI. 2008;2(2):329-335
329-335
New Assembly Technology for Driving Axle Gear. Production tools and equipment
Abstract
The paper examines the design features and assembly technology for driving axle gear units of automobiles and buses. There is a description of new assembly technologies, equipment and stands improving assembly quality and accuracy, and eliminating reassembly of gear units which highly increase overall labour-intensiveness of assembly. New technological process, production tools and equipment are partially implemented at automotive enterprises (KAMAZ, GAZ, KAAZ) and allow to improve quality and maintainability of gear units.
Izvestiya MGTU MAMI. 2008;2(2):335-340
335-340
340-342
342-346
High-efficiency Decision for the Problem of series automatic assembly on the basis of task-oriented construction of relations providing multiple increment of assembly system tolerances
Abstract
The cost price of modern industry products to a considerable extent is defined by high labour-consuming character of assembly operations. The same we can say about magnetic tape recorder manufacturing; their assembly automation is hampered by often replacement of articles. Methods are worked out, which allow to estimate technical possibility and economical advisability of their assembly automation and to choose optimum structure of flexible manufacturing system. It allowed to create flexible manufacturing systems of module construction for assembly mechanical units.
Izvestiya MGTU MAMI. 2008;2(2):346-355
346-355
355-361
361-367
Computer-aided Design of Assemblies with Spatial Tolerances on the Basis of Interval Analysis
Abstract
zin_ina@mail.ru
Present CAD systems offer insufficient support of a mixed top-down and bottom-up design mode and hardly offer any suitable functionality for 3D tolerancing. In addition, the state-of-the-art 3D CAD systems engineering fail to deal with uncertainties since only fixed parameter values are allowed for their modeling operations. So support on conceptual design phase is not provided. Based on considerations discussed in the preceding we present a CAD system architecture intended to show how the process of computer-aided design can be improved in the sense of providing 3D assembly tolerancing based on interval analysis.
Izvestiya MGTU MAMI. 2008;2(2):367-372
367-372