叶片动力学相似试验模型设计及其固有特性预测修正

罗忠; 郭健; 朱云鹏; 王德友

doi:10.13224/j.cnki.jasp.2015.07.011

叶片动力学相似试验模型设计及其固有特性预测修正

doi: 10.13224/j.cnki.jasp.2015.07.011

1. 东北大学机械工程与自动化学院, 沈阳 110819;
2. 中国航空工业集团公司沈阳发动机设计研究所, 沈阳 110015

基金项目:

国家重点基础研究发展计划(2012CB026005)

国家自然科学基金(51105064)

详细信息

作者简介:
罗忠(1978-),男,内蒙古集宁人,副教授,博士,主要从事模型试验理论与自动控制方面的研究.

中图分类号: V232.4
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- 文章访问数: 1385
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- 被引次数: 0
出版历程
- 收稿日期: 2014-03-02
- 刊出日期: 2015-07-28

Design method and revising strategy of inherent characteristics for dynamical similarity test model of blade

1. School of Mechanical Engineering and Automation, Northeastern University, Shenyang 110819, China;
2. Shenyang Engine Design and Research Institute, Aviation Industry Corporation of China, Shenyang 110015, China

摘要

摘要: 针对用直板叶片来预测真实带扭型叶片固有特性的相似试验模型设计问题,提出一种在固有特性相似条件下,直板试验模型叶片的动力学相似设计方法及修正策略.研究表明:对带扭型叶片当扭转角在其相似区间(固有频率误差小于5%)时,可直接用与其几何相似的直叶片试验模型准确预测对应阶的固有频率,当扭转角超出相似区间时,需用修正系数对与原型完全几何相似的直叶片试验模型的固有频率进行修正,修正后的固有频率值即能准确预测原型叶片的固有频率.
- 叶片 /
- 试验模型 /
- 动力学相似 /
- 相似区间 /
- 修正
Abstract: In allusion to the problem of designing the similarity test model of using straight blade to predict the inherent characteristics of the real torsion blade, a dynamical similarity model designing method of the straight test model blade and a revising strategy were put forward under the condition to have the same inherent characteristics. Research shows that, the torsion blade when the torsion angle in the similar intervals (natural frequency error is less than 5%), can predict the inherent characteristics directly using the geometry similar straight blade. When the torsion angle not in the similar intervals, need to modify the inherent characteristics with correction coefficient, and the modified values can predict the inherent characteristics of the prototype blade accurately.
- blade /
- experimental model /
- dynamical similarity /
- similar interval /
- revising

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参考文献(18)

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