保险杠动态谐振机理分析和怠速抖动控制研究

展新; 许恩永; 何水龙

doi:10.13433/j.cnki.1003-8728.20200198

保险杠动态谐振机理分析和怠速抖动控制研究

doi: 10.13433/j.cnki.1003-8728.20200198

展新^1,,
许恩永¹,
何水龙^{1, 2, ,}

1.
东风柳州汽车有限公司, 广西柳州 545005
2.
桂林电子科技大学机电工程学院, 广西桂林 541004

基金项目:

国家自然科学基金项目 51965013

广西创新驱动发展科技重大专项 AA18242033

详细信息

作者简介:
展新(1979-), 高级工程师, 硕士, 研究方向为卡车整车开发和汽车设计研究, 13557729070@163.com

通讯作者:
何水龙, 副教授, 硕士生导师, xiaofeilonghe@163.com

中图分类号: TB53
计量
- 文章访问数: 138
- HTML全文浏览量: 28
- PDF下载量: 15
- 被引次数: 0
出版历程
- 收稿日期: 2020-03-18
- 刊出日期: 2021-10-09

Analysis on Dynamic Resonance Mechanism of Vehicle Bumper and Research on Idle Jitter Control

ZHAN Xin^1
,,
XU Enyong¹,
HE Shuilong^{1, 2
, ,}

1.
Dongfeng Liuzhou Motor Co., Ltd., Liuzhou 545005, Guangxi, China
2.
School of Mechanical and Electrical Engineering, Guilin University of Electronic Technology, Guilin 541004, Guangxi, China

摘要

摘要: 针对某型商用车保险杠怠速异常振动问题，研究了保险杠结构特性和动态谐振响应机理, 通过拆除试验和关联振动传递路径上的振动数据提取分析，确定了保险杠异常抖动原因。基于偏频隔振和减振设计指标分析，对保险杠结构进行适应性改进设计，以增强保险杠结构的避频解耦和振动能量损耗能力。开展保险杠结构模态分析和实车试验，结果表明改进后共振频率偏移显著且保险杠各测点振动响应衰减明显，验证了方案的有效性和模型准确性。
- 舒适性 /
- 保险杠 /
- 怠速抖动 /
- 振动控制
Abstract: Aiming at the abnormal vibration of the bumper of a commercial vehicle at idle speed, the dynamic resonance response mechanism, along with the structural analysis of the bumper, are studied. Through the dismantling test and the analysis of the vibration data on the associated vibration transmission path, the cause of the abnormal jitter of the bumper is determined. Then, based on the design index of bias frequency isolation and vibration reduction, the adaptive design of the bumper structure is improved to enhance the ability of frequency avoidance decoupling and vibration energy loss on the bumper structure. Carry out the modal analysis of the bumper structure and the actual vehicle test. The results show that the resonant frequency shifts significantly after the improvement and the vibration response at each measuring point of the bumper is attenuated obviously; the improvement scheme is effective, and the model is accurate and feasible.
- comfort /
- bumper /
- idling jitter /
- vibration control

HTML全文

图 1 商用车保险杠振动传递关联结构图

下载: 全尺寸图片幻灯片

图 2 原有结构保险杠模型模态分析图

下载: 全尺寸图片幻灯片

图 3 保险杠总成结构动态吸振响应分析

下载: 全尺寸图片幻灯片

图 4 保险杠前梁变形示意

下载: 全尺寸图片幻灯片

图 5 怠速振动实验仪器和部分测点位置

下载: 全尺寸图片幻灯片

图 6 保险杠拆除验证测试

下载: 全尺寸图片幻灯片

图 7 座椅导轨测点处的振动加速度RMS值变动趋势

下载: 全尺寸图片幻灯片

图 8 方向盘中心点振动加速度RMS值变动趋势

下载: 全尺寸图片幻灯片

图 9 保险杠上踏板关联路径测点数据随转速变化

下载: 全尺寸图片幻灯片

图 10 保险杠上大灯关联路径测点加速度随转速变化

下载: 全尺寸图片幻灯片

图 11 保险杠结构的隔振设计

下载: 全尺寸图片幻灯片

图 12 改进保险杠的模态分析图

下载: 全尺寸图片幻灯片

图 13 保险杠吸振改进设计图

下载: 全尺寸图片幻灯片

图 14 保险杠改进前后踏板振动加速度RMS变化

下载: 全尺寸图片幻灯片

图 15 保险杠改进前后大灯振动加速度RMS变化

下载: 全尺寸图片幻灯片

参考文献(15)

[1]	樊富起. 某前保险杠过渡支架振动开裂分析与优化[J]. 机械设计与研究, 2019, 35(4): 205-209 https://www.cnki.com.cn/Article/CJFDTOTAL-JSYY201904047.htm FAN Q F. Vibration cracking analysis and optimization of a front bumper transition bracket[J]. Machine Design & Research, 2019, 35(4): 205-209 (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-JSYY201904047.htm
[2]	张世湖, 吕伟妮, 陈俊, 等. 汽车塑料保险杠模态分析及其结构优化[J]. 汽车实用技术, 2019(12): 91-95 https://www.cnki.com.cn/Article/CJFDTOTAL-SXQC201912032.htm ZHANG S H, LV W N, CHEN J, et al. Modal analysis and structure optimization of automobile plastic bumper[J]. Automobile Applied Technology, 2019(12): 91-95 (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-SXQC201912032.htm
[3]	孙志刚, 张世杰, 王一平. 基于刚柔耦合的重型汽车前组合灯振动控制[J]. 噪声与振动控制, 2015, 35(6): 74-77, 109 https://www.cnki.com.cn/Article/CJFDTOTAL-ZSZK201506017.htm SUN Z G, ZHANG S J, WANG Y P. Vibration control of the front combination lamp bracket of a heavy duty truck based on rigid-flexible coupling[J]. Noise and Vibration Control, 2015, 35(6): 74-77, 109 (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-ZSZK201506017.htm
[4]	AHAMED T I, SUNDARRAJAN R, PRASAATH G T, et al. Implementation of magneto-rheological dampers in bumpers of automobiles for reducing impacts during accidents[J]. Procedia Engineering, 2014, 97: 1220-1226 doi: 10.1016/j.proeng.2014.12.400
[5]	BABU T, SUDHARSHAN R, SUHAIL M, et al. Framework execution and schematic of jounce bumper in two-wheeler fork[M]//Hiremath S S, Shanmugam N S, Bapu B R R. Advances in Manufacturing Technology. Singapore: Springer, 2019: 503-509
[6]	GOUDILYAN M, SRINIVASAN A, GOPI SHANKER M, et al. Design and fabrication of shock absorbing bumper to reduce impact during road accident[J]. International Research Journal of Automotive Technology, 2018, 1(2): 97-103 https://core.ac.uk/display/229809510
[7]	洪金涛, 陈桂均. 某商用车前保险杠模态分析及结构改进[J]. 轻型汽车技术, 2014(5-6): 25-28, 43 https://d.wanfangdata.com.cn/periodical/qxqcjs201405007 HONG J T, CHEN G J. Modal analysis and structural improvement of the front bumper of a commercial vehicle[J]. Light Vehicles, 2014(5-6): 25-28, 43 (in Chinese) https://d.wanfangdata.com.cn/periodical/qxqcjs201405007
[8]	YANG B, JIANG L, WANG L, et al. Nonlinear maximum power point tracking control and modal analysis of DFIG based wind turbine[J]. International Journal of Electrical Power & Energy Systems, 2016, 74: 429-436 http://www.sciencedirect.com/science?_ob=ShoppingCartURL&_method=add&_eid=1-s2.0-S0142061515003361&originContentFamily=serial&_origin=article&_ts=1467350428&md5=637cb795d0d2921faddc8fc54435ee92
[9]	ZHANG J, MAES K, DE ROECK G, et al. Optimal sensor placement for multi-setup modal analysis of structures[J]. Journal of Sound and Vibration, 2017, 401: 214-232 doi: 10.1016/j.jsv.2017.04.041
[10]	SOBIE C, CAPOLUNGO L, MCDOWELL D L, et al. Modal analysis of dislocation vibration and reaction attempt frequency[J]. Acta Materialia, 2017, 134: 203-210 doi: 10.1016/j.actamat.2017.02.005
[11]	沈南燕, 禹壮, 李静, 等. 一种冗余约束并联机构模态分析[J]. 计量与测试技术, 2019, 46(6): 24-26 https://www.cnki.com.cn/Article/CJFDTOTAL-JLYS201906009.htm SHEN N Y, YU Z, LI J, et al. Modal analysis of a redundant constrained parallel mechanism[J]. Metrology & Measurement Technique, 2019, 46(6): 24-26 (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-JLYS201906009.htm
[12]	周盼, 文少波, 赵振东, 等. 某轻型车半轴的自由模态分析[J]. 汽车实用技术, 2020(7): 143-144, 176 https://www.cnki.com.cn/Article/CJFDTOTAL-SXQC202007042.htm ZHOU P, WEN S B, ZHAO Z D, et al. Free modal analysis of the half axle of a light vehicle[J]. Automobile Applied Technology, 2020(7): 143-144, 176 (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-SXQC202007042.htm
[13]	李剑乔. 基于ABAQUS的汽车轮毂模态分析[J]. 内燃机与配件, 2020(5): 42-44 https://www.cnki.com.cn/Article/CJFDTOTAL-NRPJ202005019.htm LI J Q. Modal analysis of wheel hub based on ABAQUS[J]. Internal Combustion Engine & Parts, 2020(5): 42-44 (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-NRPJ202005019.htm
[14]	张琳, 李华峰, 陈勇, 等. 基于动柔度方法的管路动力吸振器设计研究[J]. 中国舰船研究, 2019, 14(5): 138-144 https://www.cnki.com.cn/Article/CJFDTOTAL-JCZG201905020.htm ZHANG L, LI H F, CHEN Y, et al. Design and study on dynamic vibration absorber of fluid-conveying pipes based on the receptance method[J]. Chinese Journal of Ship Research, 2019, 14(5): 138-144 (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-JCZG201905020.htm
[15]	崔红奎. 船体板架振动及阻尼减振研究[D]. 上海: 上海交通大学, 2017 CUI H K. Study on vibration and damping reduction of hull plated grillage[D]. Shanghai: Shanghai Jiao Tong University, 2017 (in Chinese)