The structure optimization of tracked ambulance nonlinear vibration reduction system.
- Resource Type
- Article
- Authors
- Xu, Xinxi; Yang, Meng; Jia, Nan; Duan, Deguang
- Source
- Journal of Mechanical Science & Technology. Feb2017, Vol. 31 Issue 2, p523-533. 11p.
- Subject
- *STRUCTURAL optimization
*GENETIC algorithms
*IMAGE stabilization
*NONLINEAR systems
*VIBRATION (Mechanics)
- Language
- ISSN
- 1738-494X
Our aim was to improve the performance of tracked ambulance nonlinear vibration reduction system by structure optimization design. The structure optimization focuses on the stretcher base. Two structure optimization schemes are proposed based on the mechanism of Dynamic vibration absorber (DVA): Linear and nonlinear structure. The linear structure optimization scheme is finally adopted by comparison of the two schemes under random vibration, and the performance of linear scheme is also verified under shock vibration. Then the global sensitivity analysis method is applied to calculate the parameter sensitivity of nonlinear vibration reduction system. Finally, the Nondominated sorting genetic algorithm II (NSGA-II) is used to optimize the performance of the nonlinear vibration reduction system. It shows that the vibration energy of the supine human body on a stretcher is reduced after above studies, which proves the validity and feasibility of the structure optimization schemes proposed and the optimization studies applied in this paper. [ABSTRACT FROM AUTHOR]