• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Society of Tribologists Lubrication Engineers annual meeting exhibition >TRANSIENT RESPONSE OF A SQUEEZE FILM DAMPER TO IMPACT LOADS: EXPERIMENTS AND PREDICTIONS
【24h】

TRANSIENT RESPONSE OF A SQUEEZE FILM DAMPER TO IMPACT LOADS: EXPERIMENTS AND PREDICTIONS

机译：挤压膜阻尼器对冲击载荷的瞬态响应：实验和预测

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The abstract describes the dynamic response of a test SFD (open ends and end sealed) to impact load tests. As expected from a linear system, during the transient response, the peak displacement (Z_(max)) is proportional to the amplitude of the impact (F_(max)).The sealed ends damper shows ten to sixteen times more damping ratio (ξ) than that for the open ends SFD. That is, ξsealed sfd ～ 0.6-0.8 > ξopen sfd ～ 0.04 to 0.1. The natural frequency for the sealed SFD system is much lower than that for the open SFD hence denoting a large added mass effect.The paper also briefs on a physical model to predict the response of the test system and including the instantaneous SFD reaction force during the sudden event. The predictions agree well with the measurements as per peak amplitude of motion and the time at which it happens. However, the predictions show a discrepancy in the natural frequency (due to a difference in M_(sfd)) compared to the measurements for the open ends SFD in particular. The discrepancy in the natural frequency demonstrates the importance of film fluid inertia to accurately characterize the test SFD forced response.
机译：摘要描述了测试SFD（开口端和端部密封件）对冲击载荷测试的动态响应。正如线性系统所期望的那样，在瞬态响应期间，峰值位移（Z_（max））与冲击幅度（F_（max））成比例。 密封端部阻尼器的阻尼比（ξ）比开放端SFD的阻尼比大十到十六倍。即，ξ密封的sfd〜0.6-0.8>ξopen的sfd〜0.04至0.1。密封SFD系统的固有频率比开放SFD的固有频率低得多，因此表明产生了较大的附加质量效应。 本文还简要介绍了一个物理模型，以预测测试系统的响应，并包括突发事件期间的瞬时SFD反作用力。这些预测与运动的峰值幅度及其发生的时间的测量结果非常吻合。但是，这些预测表明，与开放式SFD的测量值相比，固有频率存在差异（由于M_（sfd）的差异）。固有频率的差异表明薄膜流体惯性对于准确表征测试SFD强制响应的重要性。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号