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| 动量轮维纳过程退化建模与寿命预测 | |
| 引用本文： | 厉海涛,金光,周经伦,周忠宝,吴春华. 动量轮维纳过程退化建模与寿命预测[J]. 航空动力学报, 2011, 26(3): 622-627 |
| 作者姓名： | 厉海涛 金光 周经伦 周忠宝 吴春华 |
| 作者单位： | 1. 国防科学技术大学,信息系统与管理学院,长沙,410073 2. 湖南大学,工商管理学院,长沙,410082 3. 中国人民解放军,空军第五飞行学院,航空理论教研室,武威,733003 |
| 基金项目： | 国家自然科学基金，湖南省优秀研究生创新基金，国防科技大学校优秀研究生创新基金 |
| 摘 要： | 针对动量轮寿命预测无失效数据问题,利用有漂移的维纳过程对其轴承温度建立性能退化模型,同时,考虑由于加工工艺、制造误差等因素所造成的不确定性,利用随机变量来描述其漂移参数和扩散参数,并结合自助法获取纠偏估计.根据所建模型仿真了轴承温度维纳过程的样本路径,最后,对动量轮进行随机失效阈值情形的寿命预测和剩余寿命预测.该模型为... |
| 关 键 词： | 寿命预测 退化建模 维纳过程 动量轮 轴承温度 |
| 收稿时间： | 2010-02-26 |
| 修稿时间： | 2010-07-23 |
Momentum wheel Wiener process degradation modeling and life prediction |
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| LI Hai-tao,JIN Guang,ZHOU Jing-lun,ZHOU Zhong-bao and WU Chun-hua. Momentum wheel Wiener process degradation modeling and life prediction[J]. Journal of Aerospace Power, 2011, 26(3): 622-627 | |
| Authors: | LI Hai-tao JIN Guang ZHOU Jing-lun ZHOU Zhong-bao WU Chun-hua |
| Affiliation: | LI Hai-tao1,JIN Guang1,ZHOU Jing-lun1,ZHOU Zhong-bao2,WU Chun-hua3(1.College of Information Systems and Management,National University of Defense Technology,Changsha 410073,China,2.College of Business Administration,Hunan University,Changsha 410082,3.Aviation Theory Teaching and Research Section,The 5th Air Force Flight Academy of the Chinese People's Liberation Army,Wuwei 733003,China) |
| Abstract: | For the problem that there is no failure data to use in momentum wheel's life prediction,a model of the degradation of momentum wheel' bear temperature was established using Wiener process with drift.At the same time,considering of the uncertainty which was made by the process technics and manufacturing error,the drift and the diffusion parameters were described as stochastic variables,and the bias correction estimate was obtained using bootstrap method.And then,the sample path was simulated based on the es... |
| Keywords: | life prediction degradation modeling Wiener process momentum wheel bear temperature |
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