| 陈慈龙,徐高新,郭峰,谢政,万松.某轻客低速轰鸣分析与改进*[J].,2023,42(4):889-895 |
| 某轻客低速轰鸣分析与改进* |
| Booming analysis and optimization of a light commercial bus |
| 投稿时间：2022-04-12 修订日期：2023-06-28 |
| 中文摘要: |
| 某轻客车型在1100-1500rpm加速工况下存在明显车内轰鸣,严重影响乘坐舒适性。本文通过对激励源、悬挂结构传递路径和车身响应详细诊断和分析,分析主要原因为传动系扭振激励过大、激励前悬挂系统模态导致振动传递到车身零件与声腔模态耦合引起轰鸣。最终通过在前风窗下横梁和尾门增加CBS、前围板加强和前转向节增加动力吸振器解决了轰鸣问题。该优化思路为类似问题的优化控制提供重要的参考价值。 |
| 英文摘要: |
| There is an obvious booming noise in the acceleration process of a light commercial bus when the engine speed is 1100-1500 rpm, serious influence on driver and passenger comfort. In this paper, through the analysis of the excitation、structure-bore path and body panel response, the root cause is torsional vibration excite suspension modal then transfer to body parts and coupling with acoustic mode. The booming issues was finally solved by adding CBS in the front windshield beam、reinforce dash-panel、adding CBS to lift gate and adding damper to front suspension knuckle. This research idea provides important reference value for the subsequent solution of similar issues. |
| DOI：10.11684/j.issn.1000-310X.2023.04.025 |
| 中文关键词: 车身CBS 声腔模态 动力吸振器 ODS 轰鸣 |
| 英文关键词: Body CBS Acoustic Cavity Modes Damper ODS Booming |
| 基金项目:江西省汽车噪声与振动重点实验室开放课题(JXNVHKB-KFKT-201801) |
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