| 直升机金属结构的全范围安全S-N曲线确定方法 |
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| 引用本文： | 曾本银,潘春蛟,喻溅鉴,朱定金.直升机金属结构的全范围安全S-N曲线确定方法[J].直升机技术,2008(2):1-5. |
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| 作者姓名： | 曾本银 潘春蛟 喻溅鉴 朱定金 |
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| 作者单位： | 中国直升机设计研究所,景德镇,333001 |
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| 摘 要： | 本文介绍了直升机结构安全S-N曲线的确定方法.在常用的三参数S-N曲线公式Stromeyer方程的基础上,根据直升机载荷的特点,介绍了一种适合直升机疲劳评定的全范围S-N曲线公式,并提供一套根据中值S-N曲线获得安全S-N曲线的方法.
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| 关 键 词： | 直升机 疲劳评定 全范围S-N曲线 强度减缩系数 寿命分散系数 高周疲劳 低周疲劳 |
Full Range Safe S-N Curve Confirmation Method of Metallic Structure on Helicopter |
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| Authors: | ZENG Ben-yin PAN Chun-jiao YU Jian-jian ZHU Ding-jin |
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| Institution: | ZENG Ben-yin,PAN Chun-jiao,YU Jian-jian,ZHU Ding-jin(China Helicopter Research , Development Institute,Jingdezhen,333001) |
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| Abstract: | A safe S-N curve confirmation method of helicopter structure is introduced in this paper.According to the characteristic of helicopter load,a full range safe S-N curve formula suitable for helicopter fatigue evaluation is presented,and a method for getting safe S-N curve from median S-N curve is provided on the basis of 3-parameter S-N curve formula stromeyer equation in common use. |
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| Keywords: | helicopter fatigue evaluation full range S-N curve strength reduction factor life decentralization factor high cycle fatigue low cycle fatigue |
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