scholarly journals Special aspects of the measurement of the internal geometric parameters of the channel parts of small size

2019 ◽  
pp. 107-111
Author(s):  
S. V. Zakhorevich ◽  
I. V. Borisovets ◽  
I. P. Lazebnikova
Keyword(s):  
Mechanical Engineering ◽  
Geometric Parameters ◽  
Complex Method ◽  
Technical Documentation ◽  
Geometric Characteristics ◽  
Technological Processes ◽  
Final Assessment ◽  
Technical Measurements ◽  
Measuring Control

Technical measurements of linear-angular sizes of parts and products are the most common in mechanical engineering and make up to 95% of the measurements of all controlled sizes. Measuring control is an integral part of each operation of technological processes of production, assembly, testing of products. The complex method of measuring the external and internal geometric characteristics of a carbide die, given in the article, allows to measure the geometric parameters of small-size parts and to give a final assessment of the product for compliance with the requirements of the project technical documentation.

Classification of mathematical models of technological design

2021 ◽  
pp. 68-71
Author(s):  
Keyword(s):  
Mathematical Model ◽  
Mathematical Models ◽  
Technological Process ◽  
Process Design ◽  
Geometric Parameters ◽  
Technological Design ◽  
Technological Processes ◽  
Technological Preparation

The use of mathematical models is of great importance for the automation of the design of technological processes. Representation of the geometric parameters of the part in the form of mathematical models allows automating the development of the structure and calculation of the parameters of the technological process, which is important for the complete digitalization of the technological preparation of production. Keywords: technological process, design, mathematical model, digitalization. [email protected]

The usage prospects investigation of the software environments for simulation modeling at the development and optimization of the machine-building production

2021 ◽  
Author(s):  
Keyword(s):  
Simulation Modeling ◽  
Mechanical Engineering ◽  
Machine Building ◽  
Simulation Software ◽  
Metals And Alloys ◽  
Point Of View ◽  
Deformation Processing ◽  
Technological Processes ◽  
Modeling Methods ◽  
Adequate Analysis

The investigation results of the applied simulation modeling programs market from the point of view of the usage possibility and expediency at the development or optimization of technological processes on domestic machinebuilding enterprises are presented. The analysis of the technological processes features in machine-building, and in particular aircraft construction, at domestic enterprises is carried out. The production features of the metalconsuming products and semi-finished products from the point of view these processes simulation expediency are considered. The expediency of carrying out simulation modeling of machine-building production, which provides adequate analysis results at minimal costs in comparison with other modeling methods are shown. The main criteria for choosing of specific simulation software are given. Keywords mechanical engineering technologies; metal-intensive production; aircraft construction; deformation processing of metals and alloys; foundry; equipment productivity; optimal stocks of semi-finished products; insurance stocks; simulation modeling; visualiz

An Optimization Design Method of Geometric Parameters of Skid Shoe Referring to Subject Weight of Marine Structures

2014 ◽  
Vol 678 ◽  
pp. 325-332
Author(s):  
Feng Yan Yang ◽  
Xiang Zhen Yan ◽  
Zheng Rong Song ◽  
Ming Wang Yang ◽  
Zi Kun Zhao ◽  
...  
Keyword(s):  
Optimization Design ◽  
Design Method ◽  
Plate Thickness ◽  
Optimization Method ◽  
Geometric Parameters ◽  
Frame Structure ◽  
Complex Method ◽  
Optimized Design ◽  
Original Design ◽  
Marine Structures

The optimization design method of geometric parameters of skid shoe which is used to subject weight of marine structures is proposed. Considering skid shoe as steel frame structure, total weight and the bearing capacity of the skid shoe are selected as optimal objectives, and geometric parameters of the skid shoe are taken as design variables. Taking the strength, stiffness, local stability of the skid shoe as the constraint conditions, multi-objectives constraints optimization model of geometric parameters is established, and solved based on complex method. According to research results, a computer program has been developed using VC language. Then geometric optimum parameters of skid shoe in service of CNOOC are analyzed by the program. The results show that optimized design decreases steel volume, steel plate thickness by 28.7%, 18.4%, respectively, compared with original design. The optimization method has a series of advantages, such as simple model, fast calculating speed, high calculation accuracy.

Development of technological processes in mechanical engineering

2021 ◽  
Author(s):  
Anatoliy Pogonin ◽  
Ivan Shrubchenko ◽  
Aleksandr Afanas'ev
Keyword(s):  
Mechanical Engineering ◽  
Full Time ◽  
Mechanical Processing ◽  
Technological Design ◽  
Technological Processes ◽  
General Methodology ◽  
Part Time ◽  
Specific Implementation

The textbook provides the main stages, sequence and general methodology for the development of technological processes of mechanical processing of parts and assembly of mechanical engineering products. In the main sections, after the presentation of the elements of the theory, students are assigned project tasks. Many sections are accompanied by examples of their specific implementation. It is compiled to help students of engineering specialties of full - time and part-time education, mastering the methodology of technological design and performing course and diploma projects and works.

Automation of technological processes and production. Introduction to the specialty

2021 ◽  
Author(s):  
Vitaliy Vinogradov ◽  
Aleksandr Cherepahin
Keyword(s):  
Mechanical Engineering ◽  
Bachelor's Degree ◽  
Educational Institutions ◽  
Federal State ◽  
Educational Standards ◽  
Original Design ◽  
Technological Processes ◽  
Automation Equipment ◽  
State Educational ◽  
Production Automation

The textbook considers the stages of development of technology, mechanical engineering and production automation as the basis for designing technological machines and complexes. Examples of original design solutions for automation equipment and, in general, for modern technological complexes in mechanical engineering are given. Meets the requirements of the latest generation of federal state educational standards. It is intended for students of higher educational institutions studying in the bachelor's degree program 15.03.04 "Automation of technological processes and production".

Cylindrical Orthotropic Thermal Conductivity of Spiral Woven Composites Part I: Modelling of a Spiral Woven Structure

2003 ◽  
Vol 11 (6) ◽  
pp. 505-511 ◽  
Author(s):  
Chao-Chuan Cheng ◽  
Chang-Hsuan Chiu
Keyword(s):  
Thermal Conductivity ◽  
Cross Sections ◽  
Single Layer ◽  
Geometric Parameters ◽  
Woven Fabric ◽  
Woven Composites ◽  
Shape Functions ◽  
Fundamental Structure ◽  
Geometric Characteristics ◽  
Woven Structure

This is the first a series of papers on the cylindrical orthotropic thermal conductivity of spiral woven composites. The geometric characteristics of spiral woven composites are modelled in the present study. A single layer of spiral woven fabric is considered as a fundamental structure and used to develop representative models, including round disc and polygon ones. In these representative models, crimps, cross-sections, and radial and circumferential arrangements of yarns are illustrated by cosine and arc yarn shape functions. A trapezoidal unit cell extracted from a polygon model will provide the next project in the series, with basic geometric parameters to develop thermal models for determining the thermal conductivities of spiral woven composites.

scholarly journals Comparison of Student and Faculty Perceptions of Team Performance in Capstone Design Projects as Evaluated by Graduate Attribute-Linked Rubrics

2013 ◽  
Author(s):  
Antony J. Hodjson ◽  
Jon Mikkelsen
Keyword(s):  
Team Performance ◽  
Mechanical Engineering ◽  
Faculty Perceptions ◽  
Student Evaluations ◽  
Technical Documentation ◽  
Faculty Perception ◽  
Engineering Program ◽  
Evaluation Scheme ◽  
Continuous Basis ◽  
Design Projects

UBC's mechanical engineering program adopted a new evaluation format two years ago basedmore on 'design dossiers' than the traditional formal engineering report. The intent was to provide students with a more industrially relevant experience of generating technical documentation, in which documents are produced on a more continuous basis. Last year, we introduced an evaluation scheme based on rubrics. This year, we plan to compare student and faculty perception sof team performance as evaluated by this rubric scheme. We expect to collect student evaluations from one third to one half of the class and will present our findings at the summer meeting.

scholarly journals Synthesis of the Structure of Technological Processes

2020 ◽  
Vol 30 (2) ◽  
pp. 287-299
Author(s):  
Sergey Yu. Kalyakulin ◽  
Vladimir V. Kuzmin ◽  
Eduard V. Mitin ◽  
Sergey P. Suldin ◽  
Tatiana B. Tyurbeeva
Keyword(s):  
Current Status ◽  
General Level ◽  
Technical Documentation ◽  
Technological Processes ◽  
Level Of Automation

Introduction. The purpose of the study is to increase the level of automation of the technical documentation development through solving a problem of synthesis of the structure of technological processes. Materials and Methods. The authors reviewed the current status of the issue of developing the automated structure for technological processes that have shown the complexity of its formalization because of a considerable quantity of factors which must be considered in developing. The algorithm for solving these tasks based on synthesis of technological processes has been developed. Results. The authors identified the relations between the parameters of the structure of technological processes based on the formation of many admissible transitions. The generalized algorithm on the basis of the synthesis is developed. Discussion and Conclusion. The tasks solved in this article allow increasing the level of automation of calculation of the parameters in systems of automated designing. The implementation of the algorithm for designing technological processes, which is developed on the basis of synthesis, allows increasing the general level of automation of designing technological processes.

Sign in / Sign up

Export Citation Format

Share Document