|
|
|
| Space dynamic motion analysis and optimization of transmission shaft based on suspension motion model |
| ZHANG Zheng-Long1, ZHAO Liang1,2 |
1. State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body， Hunan University， Changsha 410082， China；
2.Automotive Technology Limited Company of Konghui， Liuzhou 545000， China |
|
|
|
Abstract To improve the rationality and adaptability of spatial arrangement for transmission shaft，design optimization should be carried out with the characteristics of the suspensions space motion.Based on the dynamic conditions when the vehicle with leaf springs was actually travelling， kinematics analysis of the vehicles leaf springs was conducted. A transmission shaft motion model based on suspension space motion model was established， optimization goal of dynamic space of transmission shaft was presented，the linear weighting method was used to transform the multiobjective optimization into single objective optimization and small population genetic algorithm was selected to be the optimization algorithm. A transmission layout scheme with smaller average of equivalent angle was gained through example calculation， vibration and noise were effectively reduced. The results indicate that the transmission shaft space dynamic design based on leaf spring motion is more reasonable than the traditional single load optimization design，and has higher optimization efficiency and the adaptability of optimization results is better．
|
|
Published: 28 February 2013
|
基于悬架运动模型的传动轴空间动态运动分析和优化
为提高传动轴空间布置的合理性和适应性， 优化设计需要结合悬架的空间运动特性.从板簧汽车实际行驶的动态工况出发，对汽车板簧进行了运动学分析，建立基于悬架空间运动模型的传动轴运动模型，并提出了传动轴动态空间的优化目标，利用线性加权的方法，将多目标优化问题转化为单目标优化问题，选择小种群遗传算法作为优化算法.实例计算得到了平均当量夹角更小的传动布置方案，有效减小了振动和噪声.优化结果表明：基于板簧运动的传动轴空间动态设计，比传统的单一载荷下的优化设计更为合理，优化效率更高，并且优化结果的适应性更好.
关键词：
传动轴,
钢板弹簧,
悬架,
运动学,
遗传算法
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
| |
Shared |
|
|
|
|
| |
Discussed |
|
|
|
|
