Solution 4: Application of motion capture in the field of industrial design-virtual simulation workbench
1. Application of motion capture technology in the field of virtual assembly technology
(1) What is virtual assembly technology
Virtual assembly is one of the important directions of the research on virtual manufacturing technology that has emerged in the past more than ten years. From the perspective of product assembly, it aims to improve the quality of full life cycle products and related process design, and comprehensively uses computer-aided design technology. , Virtual reality technology, computer modeling and simulation technology, information technology, etc., establish a virtual environment with a strong sense of reality, designers can interactively perform product design, assembly operations and planning, inspection and evaluation of products in the virtual environment Assembly performance, and formulate a reasonable assembly plan.
Virtual assembly technology has become a model for the research and application of digital manufacturing technology in manufacturing. Using this technology for complex products can optimize product design, avoid or reduce the production of physical models, shorten development cycles, and reduce costs, thereby achieving parallel product development , Improve assembly quality and efficiency, improve product after-sales service. Virtual assembly is of great significance in complex product design and assembly process planning in the fields of aerospace, automobiles, ships, engineering machinery, etc., and has attracted widespread attention at home and abroad.
(2) Classification of virtual assembly
According to the different research purposes and functions realized at home and abroad, the research of virtual assembly generally focuses on four aspects: product design, assembly process planning, assembly system planning and assembly performance analysis. Therefore, virtual assembly can be divided into four categories: product-centric virtual assembly, process planning-centric virtual assembly, manufacturing system planning-centric virtual assembly, and virtual prototype-centric virtual assembly.
1. Virtual assembly centered on product design.
In the process of product design, virtual assembly technology is mainly used in two aspects: one is product design based on virtual assembly, and the other is product structure optimization based on virtual assembly.
2. Virtual assembly centered on process planning.
Aiming at the problem of product assembly process design, based on the product information model and assembly resource model, the computer assembly technology is used to design the product assembly process to obtain a feasible and superior assembly process plan.
3. Virtual assembly centered on manufacturing system planning.
For the planning of flexible assembly manufacturing systems in the workshop, based on product information models, assembly processes and assembly resource models, computer simulation technology is used to design, simulate and analyze flexible assembly manufacturing systems. The main research contents include flexible assembly system modeling and production scale And production cycle analysis, resource allocation, assembly shop layout, assembly line balance analysis, automatic assembly operation error diagnosis and prediction, assembly unit assembly operation control and simulation, etc., to provide support for the design and adjustment of flexible assembly systems, collaborative operation and control .
4. Virtual assembly centered on the virtual prototype.
The virtual prototype is to use a computer modeling and simulation system to simulate the shape, function and performance of the product to a certain extent to produce a comparable effect with the physical prototype to test and evaluate the product characteristics. The combination of virtual assembly and virtual prototype technology can effectively analyze the design tolerance of parts and the influence of errors in processing and assembly on product assembly performance, and provide visual means for product accuracy analysis and tolerance optimization design.
2. Introduction of Dongfang Xinju? Virtual Simulation Workbench
(I. Overview
Dongfang Xinjue Virtual Simulation Workbench is a simulation system that simulates the working environment of industrial design and production workbenches. The system makes the objects in the virtual scene appear on the virtual workbench through the stitching of two rear projection screens. Operate the virtual equipment in front of you like working on a real workbench to achieve the design, improvement and training of product modeling, construction, assembly, etc., so as to complete the set design goals.
(2) System configuration
1. The constituent subsystems include:
â‘ 1 set of 6 degrees of freedom virtual reality interactive system
â‘¡ 1 set of stereoscopic projection display system
2. Virtual simulation workbench software:
â‘ 1 set of virtual reality content creation software
â‘¡ 1 set of virtual reality stereoscopic display software
â‘¢ 1 set of application case library of virtual simulation workbench
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