| 彭荣,胡显能,钟秤平,王理周,陈清爽,刘章发.车身结构优化的某皮卡车加速轰鸣分析与控制*[J].,2025,44(5):1310-1316 |
| 车身结构优化的某皮卡车加速轰鸣分析与控制* |
| Acceleration booming analysis and control of a pickup truck based on body structure optimization |
| 投稿时间：2024-04-17 修订日期：2025-08-28 |
| 中文摘要: |
| 某皮卡车加速在2200r/min左右车内后排存在明显的2阶轰鸣,经排查确定,轰鸣是由车身后挡风玻璃与货箱前板横梁在72Hz附近的模态耦合共振引起。通过提升车身后挡风玻璃的弧度以及创新性的在货箱前板横梁上加动力吸振器的方式来优化车身结构,保证车身后挡风玻璃与货箱板之间的模态频率满足避频要求,来实现车内轰鸣问题的优化。客观数据显示优化方案使得车内后排2阶噪声优化10dB(A),主观声品质提升明显,有效的解决了此车型的轰鸣问题,为皮卡车型加速轰鸣问题的优化与控制提供了一种参考。 |
| 英文摘要: |
| A pickup truck accelerates at about 2200r/min with a 2nd-order booming in the rear, After investigation, it is confirmed that the booming is caused by the modal coupling resonance between the rear windshield of the body and the front panel beam of the cargo box near 72Hz. The body structure is optimised by upgrading the curvature of the rear windscreen and innovatively adding damper o on the front beam of the cargo box, ensure that the modal frequency between the rear windscreen and the front panel of the cargo box meets the frequency avoidance requirements, so as to optimise the booming. Objective data show that the optimisation scheme optimises the 2nd-order noise in the rear by 10dB(A), which improves the subjective sound quality significantly, effectively solves the roaring problem of this model, and provides a reference for the optimisation and control of the acceleration roaring problem of pickup trucks. |
| DOI：10.11684/j.issn.1000-310X.2025.05.021 |
| 中文关键词: 加速轰鸣 模态耦合 车身结构优化 振动控制 |
| 英文关键词: Acceleration booming Modal coupling Body structure optimisation Vibration control |
| 基金项目:南昌市重大科技攻关项目（洪字科[2023]137号） |
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