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首页> 外文期刊>Shock and vibration >Low-Frequency Performance Analysis of Semi-Active Cab's Hydraulic Mounts of an Off-Road Vibratory Roller
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Low-Frequency Performance Analysis of Semi-Active Cab's Hydraulic Mounts of an Off-Road Vibratory Roller

机译：越野振动压路机半主动驾驶室液压支架的低频性能分析

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摘要

To improve the ride comfort of the off-road vibratory roller, the cab's hydraulic mounts were analyzed to prevent vibration sources transmitting to the cab. However, the cab's low-frequency shaking in the vertical direction and the direction of forward motion is still great. This study proposes an optimal fuzzy-PID control method for semi-active cab's hydraulic mounts based on an off-road vehicle roller dynamic model to analyze the low-frequency performance of semi-active cab's hydraulic mounts under the different operating conditions. In order to evaluate the ride comfort of the off-road vibratory roller with semi-active cab's hydraulic mounts, the power spectral density (PSD) and the weighted root mean square (RMS) of acceleration responses of the vertical driver's seat, cab's pitch, and roll vibrations in the low-frequency range are chosen as objective functions. Contrastive analysis of low-frequency vibration characteristics of the off-road vibratory roller with passive cab's hydraulic mounts, semi-active cab's hydraulic mounts without optimization, and semi-active cab's hydraulic mounts with optimization is, respectively, carried out. The research results show that the semi-active cab's hydraulic mounts with optimization have an obvious effect on mitigating the cab shaking and improving the ride comfort in comparison with passive cab's hydraulic mounts and semi-active cab's hydraulic mounts without optimization.
机译：为了提高越野振动压路机的乘坐舒适性，对驾驶室的液压支架进行了分析，以防止振动源传播到驾驶室。但是，驾驶室在垂直方向和前进方向的低频振动仍然很大。提出了一种基于越野车滚子动力学模型的半主动驾驶室液压悬置的最优模糊PID控制方法，以分析半主动驾驶室液压悬置在不同工况下的低频性能。为了评估带有半主动驾驶室液压支架的越野振动压路机的乘坐舒适性，功率谱密度（PSD）和垂直驾驶座加速度响应的加权均方根（RMS），驾驶室的俯仰角，选择低频范围内的滚动振动作为目标函数。分别对带有被动驾驶室液压支架的越野振动压路机，未经优化的半主动驾驶室液压支架和经过优化的半主动驾驶室液压支架的低频振动特性进行了对比分析。研究结果表明，与被动驾驶室的液压悬挂装置和未经优化的半主动驾驶室的液压悬挂装置相比，优化的半主动驾驶室的液压悬挂装置在减轻驾驶室晃动和提高乘坐舒适性方面具有明显的作用。

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  • 来源
    《Shock and vibration》 |2019年第4期|8725382.1-8725382.15|共15页
  • 作者

    Nguyen Vanliem; Zhang Jianrun; Yang Xiuzhi;

  • 作者单位

    Hubei Polytech Univ Sch Mech & Elect Engn Huangshi Hubei Peoples R China|Thai Nguyen Univ Technol Fac Automot & Power Machinery Engn Thai Nguyen Vietnam;

    Southeast Univ Sch Mech Engn Nanjing Jiangsu Peoples R China;

    Hubei Polytech Univ Sch Mech & Elect Engn Huangshi Hubei Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
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