Advanced Development Method of the Standard Fixel Library for Computer Aided Fixture Design

2011 ◽  
Vol 421 ◽  
pp. 373-376
Author(s):  
Guo Hua Qin ◽  
Hua Yu Zhu ◽  
Hai Chao Ye ◽  
Mei Dan Zhou
Keyword(s):  
Sql Server ◽  
Secondary Development ◽  
Fixture Design ◽  
Development Method ◽  
Repetitive Tasks ◽  
Computer Aided ◽  
Development Technology ◽  
Advanced Development

In order to efficiently design a fixture, it is necessary to establish a standard fixel library for CAFD system. Therefore, a SQL Server-based development technology is first employed to manage the parameterized fixel models. And then, in order to construct a fixel model, MFC is adopted to carry out the secondary development of Unigraph environment. Thus, arbitrary fixel can be dimension-drive designed according to a parameterized fixel model. The establishment of the fixel library can to a great extent reduce the trivial and repetitive tasks in the fixture design.

Computer Aided Design Technology in the Application of Modelling Design of Shaft Parts

2012 ◽  
Vol 246-247 ◽  
pp. 1255-1259
Author(s):  
Ming Lu
Keyword(s):  
Computer Aided Design ◽  
Secondary Development ◽  
Design Technology ◽  
Improve Design ◽  
Mechanical Parts ◽  
Development Tools ◽  
Computer Aided ◽  
Development Technology ◽  
Programming Software ◽  
Aided Design

This paper describes the application of CAD-aided design technology combined with vb.NET development tools in the design of mechanical parts. To shafting parts design as the example, elaborated AutoCAD development technology in shaft parts of design methods and steps. Used Computer programming software for CAD secondary development to reduce the duplication of work of the designers, improve design accuracy and efficiency.

Application of CAD Secondary Development Technology in the 3D Parametric Design of Mechanical Parts

2012 ◽  
Vol 246-247 ◽  
pp. 1251-1254
Author(s):  
Ming Lu
Keyword(s):  
Graphic Design ◽  
Computer Aided Design ◽  
Parametric Design ◽  
Mechanical Design ◽  
Three Dimensional ◽  
Secondary Development ◽  
Mechanical Parts ◽  
Computer Aided ◽  
Development Technology ◽  
Aided Design

This paper mainly studies the technology of computer aided design in mechanical design application. In the three-dimensional spring parametrization design as an example, introduced the use of AutoCAD embedded Visual LISP development tools for3D parametric graphic design principles, processes and methods, introduction of computer aided design technology, reduces the design personnel repetitive drawing work, improve the efficiency of design.

Computer-Aided Fixture Design

1995 ◽  
pp. 122-154 ◽  
Author(s):  
A. Y. C. Nee ◽  
K. Whybrew ◽  
A. Senthil kumar
Keyword(s):  
Fixture Design ◽  
Computer Aided

scholarly journals Kinematic Modeling and Simulation of Human Arm Reach

2021 ◽  
Author(s):  
Mehrdad Zafari
Keyword(s):  
Computer Aided Design ◽  
Kinematic Modeling ◽  
Repetitive Tasks ◽  
Human Arm ◽  
Computer Aided ◽  
Computer Based ◽  
Human Operators ◽  
Aided Design ◽  
Workspace Design ◽  
Significant Attention

Modeling the human arm and calculation of the human arm reach are important for designing workspaces. An appropriate workspace design would reduce musculoskeletal disorders and wrist injuries in repetitive tasks. Among different human arm workspace designs and reach calculations, computer-based methods have recently attracted significant attention. This is because conventional experimental methods do not provide sufficient flexibility for interactive design modifications and integration of different aspects for workspace design. Despite advances in computer-aided design, many computer-based methods still rely on mock-ups and experimental set-ups. In this work, a computer-aided method is investigated for predicting the human arm reach. The kinematic modeling convention of Denavit-Hertenberg is adopted for formulating the reach. Simulation results are provided to demonstrate the effectiveness of the method. The methodology enables visualization of the reach volume of the human arm and could be easily adjusted for different human operators.

scholarly journals Kinematic Modeling and Simulation of Human Arm Reach

2021 ◽  
Author(s):  
Mehrdad Zafari
Keyword(s):  
Computer Aided Design ◽  
Kinematic Modeling ◽  
Repetitive Tasks ◽  
Human Arm ◽  
Computer Aided ◽  
Computer Based ◽  
Human Operators ◽  
Aided Design ◽  
Workspace Design ◽  
Significant Attention

Modeling the human arm and calculation of the human arm reach are important for designing workspaces. An appropriate workspace design would reduce musculoskeletal disorders and wrist injuries in repetitive tasks. Among different human arm workspace designs and reach calculations, computer-based methods have recently attracted significant attention. This is because conventional experimental methods do not provide sufficient flexibility for interactive design modifications and integration of different aspects for workspace design. Despite advances in computer-aided design, many computer-based methods still rely on mock-ups and experimental set-ups. In this work, a computer-aided method is investigated for predicting the human arm reach. The kinematic modeling convention of Denavit-Hertenberg is adopted for formulating the reach. Simulation results are provided to demonstrate the effectiveness of the method. The methodology enables visualization of the reach volume of the human arm and could be easily adjusted for different human operators.

Optimization of Aircraft Mid-Fuselage Structure Design Based on Parametric Modeling

2014 ◽  
Vol 933 ◽  
pp. 423-427 ◽  
Author(s):  
Chao Ying Zhang ◽  
Hu Liu ◽  
Yun Peng Ma
Keyword(s):  
Structural Response ◽  
Aircraft Design ◽  
Element Model ◽  
Parametric Model ◽  
Structure Design ◽  
Parametric Modeling ◽  
Secondary Development ◽  
Typical Structure ◽  
Development Technology ◽  
Cae Technology

In aircraft preliminary design, fuselage structure design is important, and to reach the lightest weight is the main target for aircraft design, especially for civil aircraft. Based on CAD/CAE technology, the paper selects a typical structure layout form of aircraft mid-fuselage to study the method of structure model quickly creation and optimization. First, it focuses on fuselage parameterized modeling method, based on CATIA secondary development technology, to create the mid-fuselage parametric model. Then, based on Patran command language, the CAD model achieves automatic meshing. Finally, selecting an appropriate strategy and using iSIGHT integrated with fuselage parametric model and finite element model, and referring to the calculated the structural response by Nastran to realize mid-fuselage structure optimization.

CAD of Gating System for Injection Mold Based on the Secondary Development Technology of PRO/E

2010 ◽  
Vol 148-149 ◽  
pp. 453-457
Author(s):  
Zheng Hao Ge ◽  
Yi Qu ◽  
Ya Nan Zhou
Keyword(s):  
Flow Rate ◽  
Material Properties ◽  
Cost Reduction ◽  
Secondary Development ◽  
Injection Mold ◽  
Gating System ◽  
Second Development ◽  
Development Technology ◽  
Pressure Fall

The gating system is usually made up of the sprue, the runner, the gate and the slag well. It is an important component of the mold. On the basis of relationship among runner’s geometry, the pressure fall of plastic melt flowing in runner, flow rate and material properties, we can use the UDF library features and Pro / Toolkit functions in PRO / E software to do the second development of PRO / E software. As a result, we can establish the CAD module of gating system for the injection mold. The module has the perfect function and good generality and can help the designer for cost reduction. It may be used whenever you want to use. The PRO / E software has a powerful function to design mold. Taking these as a base, it is very convenient for the module to design the gating system of injection mold.

scholarly journals An Alternative Solution of Train-Track Dynamic Interaction

2019 ◽  
Vol 2019 ◽  
pp. 1-14
Author(s):  
Zhaowei Chen ◽  
Hui Fang
Keyword(s):  
Calculation Method ◽  
Secondary Development ◽  
Train Track ◽  
Computational Accuracy ◽  
Explicit Integration ◽  
Application Range ◽  
Computing Platform ◽  
Development Technology ◽  
Railway Engineering ◽  
Track Bridge

Train-track interaction (TTI) is a classic research topic in railway engineering, which consists of three main parts, namely, train model, track model, and wheel-rail interaction. To improve the computational accuracy and broaden the application range, an alternative calculation method to investigate TTI based on secondary development technology of the commercial software ANSYS through APDL language is introduced in this article. Primarily, the train-track interaction theory is briefly presented. On this basis, TTI is programmed and implemented on the computing platform of ANSYS by fully taking the nonlinear wheel-rail interaction into consideration. In this calculation method, the train model, which is established based on multibody dynamics theory and solved by an advanced explicit integration method, is programmed into ANSYS through APDL language, while the track part is simulated according to finite element theory. Then, the proposed calculation method is validated with field test results to verify the validity. Finally, a numerical demonstration is conducted employing the present method. Results show that the introduced method is effective and able to investigate TTI. Different complicated track systems can be accurately simulated employing this method. Moreover, this method is also adoptable to explore train-bridge interaction and train-track-bridge interaction.

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