| 基于载荷谱的传动箱体轻量化设计研究 |
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| 引用本文： | 赵礼辉,姚瑶,郑松林.基于载荷谱的传动箱体轻量化设计研究[J].北京理工大学学报,2018,38(S1):123-127. |
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| 作者姓名： | 赵礼辉 姚瑶 郑松林 |
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| 作者单位： | 上海理工大学 机械工程学院, 上海 200093;上海理工大学 机械工业汽车底盘零部件强度与可靠性评价重点实验室, 上海 200093,上海理工大学 机械工程学院, 上海 200093,上海理工大学 机械工程学院, 上海 200093;上海理工大学 机械工业汽车底盘零部件强度与可靠性评价重点实验室, 上海 200093 |
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| 摘 要： | 针对某特种车辆综合传动箱体强度过剩，质量过重的现状，需要对箱体进行优化.传统的优化方法是基于转速转矩的经验公式计算一个较大的动载系数，减少后续优化空间.此方法主要基于台架试验载荷谱获得动载系数及应力约束.建立箱体应力分布特征，筛选测点位置，对该箱体进行台架试验，测得危险部位的载荷谱.对载荷谱进行处理获得动载系数，对箱体支撑力进行修正.对箱体进行拓扑优化与尺寸优化，达到轻量化的目的.
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| 关 键 词： | 载荷谱 传动箱体 轻量化设计 |
| 收稿时间： | 2018/6/15 0:00:00 |
Study on Lightweight Design of Transmission Box Based on Load Spectrum |
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| ZHAO Li-hui,YAO Yao and ZHENG Song-lin.Study on Lightweight Design of Transmission Box Based on Load Spectrum[J].Journal of Beijing Institute of Technology(Natural Science Edition),2018,38(S1):123-127. |
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| Authors: | ZHAO Li-hui YAO Yao and ZHENG Song-lin |
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| Institution: | College of Mechanical Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China;Machinery Industry Key Laboratory for Mechanical Strength & Reliability Evaluation of Auto Chassis Components, University of Shanghai for Science and Technology, Shanghai 200093, China,College of Mechanical Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China and College of Mechanical Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China;Machinery Industry Key Laboratory for Mechanical Strength & Reliability Evaluation of Auto Chassis Components, University of Shanghai for Science and Technology, Shanghai 200093, China |
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| Abstract: | In view of the excessive strength and excessive mass of a special vehicle gearbox, it is necessary to further optimize the box. In the optimization process, the traditional method based on the empirical formula of speed and torque has provided a larger dynamic load factor with conservative calculation, reducing the subsequent optimization space. In this paper, a lightweight design method was proposed based on load spectrum of bench test to get dynamic load coefficient and stress constraint of the vehicle gearbox. Firstly, a stress characteristic distribution model of the box body was established to screen the location of the measuring points. Secondly, the box test was carried out and the load spectrum of dangerous parts was measured. Then the load spectrum was processed to obtain the dynamic load coefficient and the supporting force was corrected for the box body. Finally, topology optimization and size optimization were carried out to achieve the goal of lightweight. |
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| Keywords: | load spectrum transmission box lightweight design |
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