Modeling of Virtual Assembly and Disassembly Process Based on Selective Disassembly

Hao Wang,Qian Zhang,Bin Yin,Qing Shen,Yan Tao Yang

doi:10.11648/j.ijiis.20211002.12

Abstract

The virtual disassembly and assembly system based on computer virtual reality technology has been rapidly developed and applied. However, the current virtual disassembly system and assembly based on the hierarchy model and association model does not consider the problem of selective disassembly, which leads to inconsistency between virtual disassembly and actual disassembly. Aiming to solve the problem, introduces the concept of skipping disassembly path on the basis of the original disassembly system based on the hierarchical relationship and the association relationship model, and perfects and optimizes the disassembly and assembly structure model based on the hierarchical relationship model and the association relationship model. The sequence planning of the disassembly model after introducing the shipping disassembly path was carried out．And the combination and reduction of disassembling units in the course of disassembly decision was described. Finally, a selective disassembly algorithm based on the association relationship model is established. With the marine oil separator for example verification. The results show that the model can better solve the actual problem of selective disassembly which improved the authenticity and user experience of the virtual disassembly and assembly system, and has great influence on the application development of the virtual disassembly and assembly system.

Highlights

Virtual disassembly based on Virtual Reality (VR) is the essence of the actual disassembly and assembly process on the computer
It is a process of design and analysis of equipment disassembly and assembly, planning and verification of disassembly process, training of disassembly and operation and the final realization of virtual disassembly and assembly evaluation by using computer simulation and virtual reality technology [1, 2]
This paper introduces the concept of jumping disassembly path into the virtual disassembly and assembly structure model, improves and optimizes the existing hierarchical relation model and correlation model, solves the problem of selective disassembly in the process of disassembly and assembly, and takes the disassembly process of marine oil separator as an example to verify and analyze

Summary

Introduction

Virtual disassembly based on Virtual Reality (VR) is the essence of the actual disassembly and assembly process on the computer. For the virtual disassembly and assembly of marine equipment, it mainly focuses on disassembly and assembly training and operation evaluation. In order to make virtual disassembly and assembly truly reflect the essence of the actual disassembly and assembly process, the disassembly and assembly process of equipment should be modeled, including disassembly information model, coordination constraint model and disassembly structure model. This paper introduces the concept of jumping disassembly path into the virtual disassembly and assembly structure model, improves and optimizes the existing hierarchical relation model and correlation model, solves the problem of selective disassembly in the process of disassembly and assembly, and takes the disassembly process of marine oil separator as an example to verify and analyze

Disassembly Structure Model Based on Hierarchy and Association

Hierarchical Relationship Model

Case Verification Analysis

Conclusion