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| 极大似然法对比试验研究及其试验数据处理 | |
| 引用本文： | 熊峻江,黄新宇,高镇同,夏千友,干伟民,曾本银,孙如林. 极大似然法对比试验研究及其试验数据处理[J]. 航空学报, 1996, 17(5): 28-31 |
| 作者姓名： | 熊峻江 黄新宇 高镇同 夏千友 干伟民 曾本银 孙如林 |
| 作者单位： | 北京航空航天大学固体力学研究所，中国直升机研究所 |
| 摘 要： | 基于中值Ｓ－Ｎ曲线的三参数幂函数式，根据极大似然原理，分别给出了测定Ｐ－Ｓ－Ｎ曲线的单点试验、成组试验和单点－成组试验结果的Ｐ－Ｓ－Ｎ曲线公式。并进行了对比试验，使用文中方法统计分析试验数据，发现单点法、单点－成组法及成组法测定出的Ｐ－Ｓ－Ｎ曲线较接近。由于单点法能够大量节省试样，且能保证一定的精度；因此它适合构件和模拟件Ｐ－Ｓ－Ｎ曲线的测定 |
| 关 键 词： | 单点法 成组法 单点－成组法 P－S－N曲线 极大似然法 |
COMPARATIVE TEST STUDY FOR THE MAXIMUM LIKELIHOOD PRINCIPLE AND THE TREATMENT OF ITS FATIGUE TEST DATA |
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| Xiong Junjiang,Huang Xinyu,Gao Zhentong. COMPARATIVE TEST STUDY FOR THE MAXIMUM LIKELIHOOD PRINCIPLE AND THE TREATMENT OF ITS FATIGUE TEST DATA[J]. Acta Aeronautica et Astronautica Sinica, 1996, 17(5): 28-31 | |
| Authors: | Xiong Junjiang Huang Xinyu Gao Zhentong |
| Affiliation: | 1. Institute of Solid Mechanics, Beijing University of Aeronautics and Astronautics, Beijing, 100083;2. Chinese Helicopter Resear ch Inst itute, Jingdezhen, 333001 |
| Abstract: | On the basis of N(S-S 0) m=C , according to the maximum likelihood principle, the formulas of P S N curves are presented which were determined by the single spot method, the single spot group method and the group method.The comparative test was made, and the test data are analyzed and treated. It was found that the P S N curves determined by these three methods were approximate.By means of the single spot method,many specimens may be saved, so the single spot method may be used to determine the P S N curves of the structure components. |
| Keywords: | single spot method single spot group method group method P S N curve the maximum likelihood principle |
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