期刊
MATHEMATICAL BIOSCIENCES AND ENGINEERING
卷 18, 期 2, 页码 1653-1669出版社
AMER INST MATHEMATICAL SCIENCES-AIMS
DOI: 10.3934/mbe.2021085
关键词
Michell Truss method; Topology Optimization; lightweight gear; principal stress line
资金
- Jiangsu Province Science and Technology Support Plan Project [BE2018010-2]
- Open-End Fund for Graduate Students (Nanjing University of Aeronautics and Astronautics) [kfjj20200512]
- National Natural Science Foundation of China [51775273]
- National Defence Basic Scientific Research Program of China [JCKY2018605C010]
- Frontiers of science and Technology Program of China [18-163-12-ZT-004-063-01]
A new method for lightweight gear design based on Michell Trusses Design method was investigated and compared with traditional Topology Optimization method. The research found that the new method significantly reduces design time while maintaining the same power-to-weight ratio as the traditional method, showing promising prospects for applications in mechanical engineering and aviation industry.
A new method for lightweight gear design based on Michell Trusses Design method was investigated in this research to compare with the traditional Topology Optimization method. A workflow with detailed steps was established using example of constructing Michell Trusses to make lightening holes at the gear's web. In this workflow, Michell Trusses are generated from a set of concentric circles. By solving the equation with the variables of concentric circles (complexity), the optimal orthogonality of trusses can be determined. Real experiments were conducted to compare the two design methods in the aspects of design costs and product mechanical property, including recording the time consumed in each link and detecting the force of failure of gears by a testing platform. The results indicate that this new method can significantly reduce design time while maintain the same power-to-weight ratio as the Topology Optimization design, which potentially provide a new research direction for lightweight structural modeling in mechanical engineering and aviation industry. The experimental product developed in this research demonstrated the promising prospects for real world applications.
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