基于支承反力测试的轴承载荷辨识

魏巍;张志谊;华宏星

振动与冲击 ›› 2015, Vol. 34 ›› Issue (3) : 156-160.

PDF(2826 KB)
PDF(2826 KB)
振动与冲击 ›› 2015, Vol. 34 ›› Issue (3) : 156-160.
论文

基于支承反力测试的轴承载荷辨识

  • 魏巍 ,张志谊 ,华宏星
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Identification of Loads on the Bearing Based on Support Reaction Meauring

  • WEI Wei, ZHANG Zhi-yi, HUA Hong-xing
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摘要

提出一种水洞中螺旋桨轴系艉支承结构轴承处载荷的辨识原理,该方法通过实测的支承反力反求施加在艉轴承处的作用力。本文侧重于测试方法的原理描述,通过建立艉支承结构的简化模型,对有预应力的支承结构的载荷-力响应关系进行推导,得到了结构轴承处的载荷-支承反力的解析表达式,然后在此基础上构建轴承处载荷的辨识原理。仿真结果表明,该方法辨识精度较高,可用于水洞中螺旋桨轴系艉轴承处的载荷辨识。

Abstract

A principle for the measuring of loads on the stern bearing of a propeller shaft in water tunnel is presented in this paper. In this method, loads on the sthern bearing surface are obtained through direct measuring data of the support reactions. Stressed on the theory of measuring method, we established the simplified model of bearing-support structure and obtained the load-response relationship of a pre-loaded support structure through formula derivation as well as the analytical expressions of bearing loads and support reactions. Based on this, a identification algorithm was further established. Simulation results show that this method has relatively high precision, and is suitable for the load identification of the stern bearing of a propeller shaft in water tunnel.

关键词

轴承支承结构 / 载荷 / 辨识

Key words

bearing support structure / loads / identification

引用本文

导出引用
魏巍;张志谊;华宏星. 基于支承反力测试的轴承载荷辨识[J]. 振动与冲击, 2015, 34(3): 156-160
WEI Wei;ZHANG Zhi-yi;HUA Hong-xing. Identification of Loads on the Bearing Based on Support Reaction Meauring[J]. Journal of Vibration and Shock, 2015, 34(3): 156-160

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