一种叶片干摩擦阻尼器耦合振动分析的二维局部摩擦模型

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振动与冲击 ›› 2014, Vol. 33 ›› Issue (13) : 194-197.

论文

一种叶片干摩擦阻尼器耦合振动分析的二维局部摩擦模型

何冰冰 1 任兴民 1 何尚文2 秦卫阳 1 杨永锋 1 邓旺群 3

作者信息 +

A Two-Dimensional Micro slip Model for Analyzing Coupled Vibration of Turbine Blade with Dry Friction Damper

HE Bingbing 1 REN Xingmin 1 HE Shangwen 2 QIN Weiyang 1 YANG Yongfeng 1 DENG Wangqun 3

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文章历史 +

摘要

从一维局部滑动模型和轨迹跟踪法出发，采用带滑动触点的并联弹簧来模拟二维平面运动时叶片-阻尼器间的干摩擦接触，提出一种二维局部滑动摩擦模型。推导了各种摩擦接触情形下的摩擦力计算公式，通过仿真深层次揭示了二维局部滑动的规律。结果表明，二维局部滑动与一维局部滑动相比既有一致又有本质不同，二维局部滑动模型可用于叶片干摩擦阻尼器耦合振动特性的分析。

Abstract

Based on one-dimensional micro slip model and trajectory-tracing method, a two-dimensional micro slip friction model to analyze coupled vibration was presented by introducing parallel springs with sliding contact to simulate the contact state. The formula of friction force for all contact states was deduced. The law of two-dimensional micro slip is deeply revealed by simulations. Conclusions drawn from the analyses show that two-dimensional micro slip is in accordance with, and as well as different with one-dimensional micro slip and that the two-dimensional micro slip model can be used to analyze coupled vibration of dry friction damper.

导出引用

何冰冰任兴民何尚文秦卫阳杨永锋邓旺群 . 一种叶片干摩擦阻尼器耦合振动分析的二维局部摩擦模型[J]. 振动与冲击, 2014, 33(13): 194-197

HE Bingbing REN Xingmin HE Shangwen QIN Weiyang YANG Yongfeng DENG Wangqun . A Two-Dimensional Micro slip Model for Analyzing Coupled Vibration of Turbine Blade with Dry Friction Damper[J]. Journal of Vibration and Shock, 2014, 33(13): 194-197