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首页> 外文期刊>Transactions of the ASABE >Reduction of Rattle Noise of a Direct Engine-PTO Driveline of Agricultural Tractors: Part II. Causes of PTO Rattle Noise
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Reduction of Rattle Noise of a Direct Engine-PTO Driveline of Agricultural Tractors: Part II. Causes of PTO Rattle Noise

机译:减少农用拖拉机的直接发动机-动力输出轴传动系统的嘎嘎声:第二部分。 PTO嘎嘎声的原因

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摘要

To investigate the causes of the PTO rattle noise of a direct engine-PTO driveline, a 10-degree of freedom non-linear mathematical model of the driveline was developed and verified experimentally. The model was used to simulate dynamic characteristics of the driveline motions and the effects of driveline parameters on the PTO rattle noise under the condition that generated the loudest PTO rattle noise. The results of the simulation identified that the PTO rattle noise was caused by collisions between the driving and driven gears in the PTO gearbox due to their velocity variations induced by the torque fluctuations from the engine. It was also found that the PTO rattle noise decreased as the drag torque and the mass moment of inertia of the engine flywheel increased. Smaller backlash and mass moment of inertia of the driven gear also reduced the PTO rattle noise. However, increasing the drag torque and mass moment of inertia of the engine flywheel or decreasing the backlash and mass moment of inertia of the driven gear are not practical due to their detrimental effects on the transmission efficiency, gear strength, and smooth operations of gears. These methods are not suggested as being appropriate for solving the PTO rattle noise problem of the tractor used in this study. Instead, we recommend considering use of a torsional damper as a means of reducing velocity variations of the PTO driveline, which was a primary cause of the PTO rattle noise
机译:为了研究直接发动机-PTO传动系统动力输出发出嘎嘎声的原因,开发了传动系统的10自由度非线性数学模型并进行了实验验证。该模型用于模拟在产生最大的PTO嘎嘎声的条件下动力传动系统运动的动态特性以及动力传动系统参数对PTO嘎嘎声的影响。仿真结果表明,PTO嘎嘎声是由于PTO变速箱中主动齿轮和从动齿轮之间的碰撞引起的,这是由于发动机扭矩波动引起的速度变化引起的。还发现,随着阻力转矩和发动机飞轮的惯性矩增加,PTO的嘎嘎声降低。从动齿轮的较小的反向间隙和质量惯性矩也减少了PTO嘎嘎声。但是,由于增大了发动机飞轮的牵引转矩和惯性矩,或者减小了从动齿轮的反冲和惯性矩,这对传动效率,齿轮强度和齿轮的平稳运行有不利影响。不建议使用这些方法来解决本研究中使用的拖拉机的动力输出轴嘎嘎声问题。相反,我们建议考虑使用扭振阻尼器作为减少万向传动系统传动系统速度变化的方法,这是万向传动机构发出嘎嘎声的主要原因

著录项

  • 来源
    《Transactions of the ASABE》 |2009年第2期|p.357-368|共12页
  • 作者

    Y. J. Park; K. U. Kim;

  • 作者单位

    Young Jun Park, Senior Researcher, System Engineering Research Division, Korea Institute of Machinery and Materials, Daejeon, Korea, and Kyeong Uk Kim, Professor, Department of Biosystems and Biomaterials Science and Engineering, Research Institute for Agriculture and Life Sciences, Seoul National University, Seoul, Korea. Corresponding author: Kyeong Uk Kim, Department of Biosystems and Biomaterials Science and Engineering, Research Institute for Agriculture and Life Sciences, Seoul National University, 599 Gwanangno Kwanak-Gu, Seoul 151-921, Korea;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Computer simulation; Direct engine-PTO driveline; PTO rattle noise;

    机译:计算机仿真;直接发动机动力输出轴传动系统;PTO发出嘎嘎声;

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