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A Novel Method for Assemblability Evaluation of Non-Ideal Cylindrical Parts Assembly
- Source :
- Computer-Aided Design. 134:103002
- Publication Year :
- 2021
- Publisher :
- Elsevier BV, 2021.
-
Abstract
- The assemblability, which is the feasibility and difficulty of assembly, will greatly affect the efficiency and quality of assembly process, so assemblability analysis plays an important role during the design stage of products. Cylindrical parts assembly is a common structure with wide applications, whose assemblability can be affected by surface deviations, especially in some precision assemblies. In this paper, a novel method is proposed for the assemblability evaluation of cylindrical parts assembly considering surface deviations. Firstly, based on the surface deviations modeling of cylindrical parts and assembly clearance calculation, the assembly posture adjustment process is defined and simulated to obtain the assemblable postures without interference between parts. Then, in the proposed six dimensional posture space, a search algorithm is established to obtain the boundary points of assemblable posture space. Afterwards, in order to represent this irregular hyperspace, the largest inscribed generalized cone of which is put forward. Finally, based on the characteristics of generalized cone, two indicators are defined to reflect the adjustable range of assembly posture, which can realize the quantitative evaluation of assemblability. The validity of the proposed method is verified by case studies of cylindrical parts assemblies with different surface deviations.
- Subjects :
- Surface (mathematics)
0209 industrial biotechnology
Ideal (set theory)
Computer science
Process (computing)
Mechanical engineering
Boundary (topology)
020207 software engineering
02 engineering and technology
Interference (wave propagation)
Computer Graphics and Computer-Aided Design
Industrial and Manufacturing Engineering
Computer Science Applications
Range (mathematics)
020901 industrial engineering & automation
Cone (topology)
Search algorithm
0202 electrical engineering, electronic engineering, information engineering
Subjects
Details
- ISSN :
- 00104485
- Volume :
- 134
- Database :
- OpenAIRE
- Journal :
- Computer-Aided Design
- Accession number :
- edsair.doi...........7e489c3bdf775be35110dee798333c0b