| 侧向气动力对汽车稳态响应的影响 |
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| 引用本文： | 韩善灵,朱平,林忠钦.侧向气动力对汽车稳态响应的影响[J].上海交通大学学报,2005,39(9):1445-1448. |
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| 作者姓名： | 韩善灵 朱平 林忠钦 |
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| 作者单位： | 1. 上海交通大学,机械与动力工程学院,上海,200030;山东建筑工程学院,力学研究所,济南,250101
2. 上海交通大学,机械与动力工程学院,上海,200030 |
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| 摘 要： | 考虑侧向气动力的影响，建立了简化的二自由度汽车动力学模型，推导了横摆角速度增益与风压中心及汽车外形问的关系，提出了主、次气动稳定性因子的概念，阐明了影响汽车稳态响应的主要因素是主气动稳定性因子，次气动稳定性因子可以忽略不计。为分析气动力对汽车稳态响应的影响，改善汽车高速行驶稳定性提供了理论依据和简易评价方法。
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| 关 键 词： | 汽车 空气动力学 侧向气动力 主气动稳定性因子 次气动稳定性因子 汽车稳态响应 |
| 文章编号： | 1006-2467(2005)09-1445-04 |
| 收稿时间： | 2004-09-28 |
| 修稿时间： | 2004年9月28日 |
The Influence of Lateral Aerodynamics on Stationary Response of a Vehicle |
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| HAN Shan-ling,ZHU Ping,LIN Zhong-qin.The Influence of Lateral Aerodynamics on Stationary Response of a Vehicle[J].Journal of Shanghai Jiaotong University,2005,39(9):1445-1448. |
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| Authors: | HAN Shan-ling ZHU Ping LIN Zhong-qin |
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| Institution: | HAN Shah-ling, ZHU Ping, LIN Zhong-qin (1. School of Mechanical Eng. , Shanghai Jiaotong Univ. , Shanghai 200030, China; 2. Mechanics Reseach Center, Shandong Inst. of Architecture |
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| Abstract: | Considering the influence of lateral aerodynamics, an automotive kinetics model with two degrees of freedom was established. The relationships between the yaw rate gain and the center of wind pressure or the shape of automobile were derived. The first stability factor and the secondary stability factor were brought forward. It was explained that the main influence factor is the first stability factor and the secondary stability can be ignoredl This paper provided a theorecit criterion for analyzing the influence of lateral aerodynamics of automotive and improving the stability of a vehicle at high speed. |
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| Keywords: | vehicle aerodynamics lateral aerodynamics first stability factor secondary stability factor automotive stationary response |
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