Ergonomics Evaluation of Virtual Maintenance Process Based on Fuzzy and AHP Method

2016 ◽  
pp. 751-762 ◽  
Author(s):  
Fu-yang Yu ◽  
Qing Xue ◽  
Wei Meng ◽  
Min-xia Liu
Keyword(s):  
Ahp Method ◽  
Virtual Maintenance ◽  
Maintenance Process

A semi-automatic approach to implement rapid non-immersive virtual maintenance simulation

2018 ◽  
Vol 38 (3) ◽  
pp. 291-302 ◽  
Author(s):  
Jie Geng ◽  
Xu Peng ◽  
Ying Li ◽  
Chuan Lv ◽  
Zili Wang ◽  
...  
Keyword(s):  
Virtual Environments ◽  
Human Motion ◽  
Virtual Simulation ◽  
Secondary Development ◽  
Tool Selection ◽  
Content Type ◽  
Simulation Tools ◽  
Basic Parameters ◽  
Virtual Maintenance ◽  
Maintenance Process

Purpose Current virtual simulation platforms provide various tools to generate non-immersive simulation processes purposefully in different domains. The generated simulation processes are adopted for analysis, presentation, demonstration and verification. In the virtual maintenance domain, this intuitive and visual method has benefitted product maintainability design and improvement. Generating an ideal and reasonable non-immersive virtual maintenance simulation is always time-consuming because of the complicated human operations and logical relationships involved. This study aims to propose a semiautomatic approach to increase efficiency in non-immersive virtual maintenance simulation implementation. Design/methodology/approach The methodology analyzes the general catalogs of common maintenance tasks and explores the corresponding secondary development approaches of simulation tools that can achieve motion simulation in virtual environments, by focusing on the diversity, complexity and uncertainty in non-immersive virtual simulation process generation. Afterward, a single virtual human motion can be generated by controlling the parameters and indices of the simulation tools. Subsequently, all of the generated single motions are connected logically to simulate the entire maintenance process. Findings Instead of selecting various tools, such as that in a traditional method, the proposed methodology analyzes and integrates the necessary basic parameters considering the characteristics of virtual maintenance simulation for a target maintenance activity. Originality/value The user can control the predefined parameters to generate the simulation combining several other simple operations in virtual environments. Consequently, the methodology decreases simulation tool selection and logic consideration and increases efficiency to a certain extent in non-immersive virtual maintenance simulation generation.

Virtual Maintenance Process Modeling and Simulation

2010 ◽  
Vol 44-47 ◽  
pp. 527-531 ◽  
Author(s):  
Dong Zhou ◽  
Mei Hui Wang ◽  
Lin Huo ◽  
Chuan Lv
Keyword(s):  
Modeling And Simulation ◽  
Control Method ◽  
Model And Simulation ◽  
Scheduling Method ◽  
A New Technique ◽  
Conflict Strategies ◽  
Virtual Maintenance ◽  
Maintenance Model ◽  
Maintenance Process

Virtual maintenance technique brings new mode for system maintainability design and analysis, however, the theory of virtual maintenance is not fully studied and researches are deficiency in the key field of virtual maintenance modeling and simulation. So virtual maintenance model and simulation control method are studied in the paper. Virtual maintenance model is based on Petri Net and can describe the relations of maintenance resources, and the model structure, formal definition, maintenance object, resource state and model operation are given. In addition, virtual maintenance simulation rules and simulation scheduling method are built in the paper. Simulation scheduling objective, flow and conflict features of maintenance process simulation are analyzed, and conflict strategies are addressed subsequently. Finally, a case study of the LRU repair of an aircraft is conducted, and the result confirms the validation and feasibility of all the studies, which can become a new technique means for maintainability engineering.

Analysis of Key Technologies for Aeroengine Maintenance Based on Virtual Reality

2009 ◽  
Vol 16-19 ◽  
pp. 801-805
Author(s):  
Hong Shi ◽  
Song Xiang ◽  
Jing Wang
Keyword(s):  
Virtual Reality ◽  
Cycle Length ◽  
Process Model ◽  
Simulation Analysis ◽  
Virtual Reality Technology ◽  
Analysis And Evaluation ◽  
Key Technologies ◽  
Physical Prototype ◽  
Virtual Maintenance ◽  
Maintenance Process

The virtual maintenance technology based on the virtual reality technology has changed the traditional single-site maintenance means, and also overcame the shortcoming of manufacturing cycle length, high cost, and difficult to amend for the physical prototype. Furthermore, it can expose the problem during the early design. The key technologies of virtual maintenance include the maintenance process model, virtual maintenance prototype, virtual maintenance simulation, analysis and evaluation of maintainability. In this paper, the research object is aeroengine.The key technologies of virtual maintenance were analyzed.

Research of Armored Anti-Riot Vehicles Repair Based on Virtual Maintenance Technology

2014 ◽  
Vol 945-949 ◽  
pp. 209-213
Author(s):  
Ren Jun Zhan ◽  
Chao Zu Ma ◽  
Song Wang
Keyword(s):  
Process Model ◽  
Vital Role ◽  
Police Force ◽  
Equipment Maintenance ◽  
Key Technologies ◽  
Virtual Maintenance ◽  
Maintenance Process

Virtual maintenance technology is a major innovation in the equipment maintenance field in recent years, the armored anti-riot vehicles play a vital role in the tasks of the duty, conflict, terrorism of the armed police force. In order to apply the virtual maintenance technology in armored anti-riot vehicles better, the article introduced the virtual maintenance technology and its key technologies, and gave the importance of virtual maintenance technology. It established the virtual maintenance process model of armored anti-riot vehicles. At last, it gave the prospect of the technology and made some suggestions.

Research of Nuclear Power Plant In-Service Maintenance Based on Virtual Reality

2016 ◽  
Vol 2 (4) ◽  
Author(s):  
Kuang Weijun ◽  
Yu Xiao ◽  
Zhang Lin
Keyword(s):  
Virtual Reality ◽  
Power Plant ◽  
Nuclear Power Plant ◽  
Nuclear Power ◽  
Power Plants ◽  
Virtual Simulation ◽  
Virtual Reality Technology ◽  
Virtual Maintenance ◽  
Maintenance Process ◽  
Time Assessment

This paper presents a method of constructing a nuclear power plant in-service maintenance virtual simulation scene and virtual maintenance process. Taking air-baffles dismantling process of CAP1400 nuclear power plant for instance, this paper discusses ergonomics, space analysis, and time assessment based on virtual reality in the process of in-service maintenance. It demonstrates the advantage of using virtual reality technology to design and verify an in-service maintenance process of nuclear power plants compared to the conventional way.

Research on Flexible Cables Simulation Based on CATIA/DELMIA

2010 ◽  
Vol 26-28 ◽  
pp. 800-804
Author(s):  
Jian Ming Shi ◽  
Dong Zhou ◽  
Jie Geng ◽  
Chuan Lv
Keyword(s):  
Virtual Assembly ◽  
Difficult Problem ◽  
Digital Design ◽  
Design Problems ◽  
Simulation Based ◽  
Flexible Cables ◽  
Virtual Maintenance ◽  
Maintenance Process ◽  
D Model

Digital design and assembly of cables is a most important and difficult problem in mechanical industry. The paper solved the problem through the CAD/CAE software. Firstly, 3-D model of electrical bundle was built in the digital mock-up. The model reflected the parameters of the bundle exactly. After the design of cables, the simulation of cable moving was developed. The flexible feature of cable was displayed in the animation. It was an exciting achievement of this article, which can be used in the virtual assembly of cables to detect design problems. Besides the maintenance process containing cable plug and pull was simulated. The ergonomics was then tested in the form of virtual maintenance.

The method of predicting the maintenance time of mechanical products based on Virtual Prototype

2022 ◽  
Vol 15 ◽  
Author(s):  
Jin Li ◽  
Xinsheng Jiang ◽  
Zituo Wang ◽  
Chunhui Wang ◽  
Yunxiong Cai
Keyword(s):  
Body Movement ◽  
Estimation Method ◽  
Prediction Method ◽  
Virtual Prototype ◽  
Time Prediction ◽  
Maintenance Time ◽  
Mechanical Products ◽  
Physical Prototype ◽  
Virtual Maintenance ◽  
Maintenance Process

Aim: To predict the mechanical product maintenance time is difficult in the situation of lack of physical prototype or similar products’ statistics in stage of design Method: According to the theory of time accumulative estimation method, a product maintenance time prediction method framework based on virtual prototype was constructed, which described the prediction process. The virtual maintenance environment which contains virtual prototype, virtual human and maintenance tools was developed. The virtual human’s position and posture information during the maintenance process was obtained by implementing VBScript language. Result: Basic maintenance motions that constitute the whole maintenance process were classified into 4 categories: body movement, upper limb movement, grasp/replace and operation. Based on MODAPTS (Modular arrangement of predetermined time standard) method and virtual maintenance simulation, corresponding time prediction methods for each categories were proposed. Discussion: Take a maintenance dissassembly and assembly task of engine as an example, through the comparison between the measured actual maintenance time and predicted time of several methods, feasibility and effectiveness of proposed method are verified

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