桥隧连接路段厢式半挂车侧风稳定性分析

胡振; 苏楚奇; 张倩文; 汪怡平

doi:10.13433/j.cnki.1003-8728.20190341

桥隧连接路段厢式半挂车侧风稳定性分析

doi: 10.13433/j.cnki.1003-8728.20190341

胡振^{1, 2,},
苏楚奇^{1, 2},
张倩文^{1, 2},
汪怡平^{1, 2, ,}

1.
武汉理工大学汽车工程学院，武汉　430070
2.
武汉理工大学现代汽车零部件技术湖北省重点实验室，武汉　430070

基金项目: 国家自然科学基金项目（51775395）、国家重点研发计划项目（2018YFB0105301）及中央高校基本科研基金项目（WUT：2017II18XZ）资助

详细信息

作者简介:
胡振（1994−），硕士研究生，研究方向为多体动力学，空气动力学，auto_huzhen@163.com

通讯作者:
汪怡平，教授，博士生导师，wangyiping@whut.edu.cn

中图分类号: U461.6
计量
- 文章访问数: 153
- HTML全文浏览量: 35
- PDF下载量: 13
- 被引次数: 0
出版历程
- 收稿日期: 2019-09-07
- 网络出版日期: 2020-12-08
- 刊出日期: 2020-12-05

Analysis on Crosswind Stability of Van Semi-trailer in Bridge and Tunnel Connection Section

Hu Zhen^{1, 2
,},
Su Chuqi^{1, 2},
Zhang Qianwen^{1, 2},
Wang Yiping^{1, 2
, ,}

1.
School of Automotive Engineering, Wuhan University of Technology, Wuhan 430070, China
2.
Hubei Key Laboratory of Advanced Technology for Automotive Components, Wuhan University of Technology, Wuhan 430070, China

摘要

摘要: 为揭示侧风条件下桥隧连接路段厢式半挂车瞬态气动特性变化及其对操纵稳定性影响规律，建立了计算流体力学与多体动力学动态双向耦合的仿真平台。在考虑牵引车与半挂车的相对转动基础上，对车辆行经不同位置时车身所承受的空气动力学载荷及周围流场结构进行分析，并利用横摆角和侧向位移评价整车的侧风稳定性。结果表明，牵引车与半挂车的相对转动会增大厢式半挂车在桥隧连接路段行驶时车辆的横摆角、侧向位移与气动载荷的幅值，固联牵引车和半挂车可以提高车辆的侧风稳定性。
- 瞬态气动特性 /
- 操纵稳定性 /
- 空气动力学载荷 /
- 多体动力学 /
- 侧风
Abstract: A simulation platform for the two-way coupling of computational fluid dynamics (CFD) and multi-body dynamics (MBD) was established for transient analysis of the aerodynamic characteristics of the van semi-trailer in bridge and tunnel connection section under crosswind conditions. On the basis of considering the relative movement of the tractor and the semi-trailer, the aerodynamic loads and the surrounding flow fields of the vehicle are analyzed when the vehicle travels through different positions, and the crosswind stability of the vehicle is evaluated by the yaw angle and the lateral displacement. The simulation results show that the relative motion of the tractor and semi-trailer will increase the amplitude of yaw angle, lateral displacement and aerodynamic load of the van semi-trailer when driving on the bridge and tunnel connection, and fixing tractor and semi-trailer can improve the crosswind stability of the vehicle.
- transient analysis /
- stability /
- aerodynamic loads /
- multi-body dynamics /
- crosswind

HTML全文

图 1 厢式半挂车模型

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图 2 多体动力学模型

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图 3 计算域示意图

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图 4 车身周围网格

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图 5 车辆位置示意图

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图 6 双向耦合平台

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图 7 车身所承受的气动载荷

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图 8 厢式半挂车气动载荷

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图 9 z = 2.0 m处速度云图

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图 10 厢式半挂车动态响应变化

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表 1 多体动力学模型参数

参数数值

总质量/kg 36 908
质心到前轴距离/mm 7 373
质心高度/mm 1 602
整车横摆转动惯量/(kg·m²) 3.76 × 10⁶
轮胎半径/mm 571.5

下载: 导出CSV

参考文献(16)

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