| 涡轮转子随机结构的可靠性研究 |
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| 引用本文： | 王新刚,张义民,王宝艳.涡轮转子随机结构的可靠性研究[J].航空动力学报,2009,24(6):1316-1320. |
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| 作者姓名： | 王新刚 张义民 王宝艳 |
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| 作者单位： | 1.东北大学 机械工程与自动化学院, 沈阳 110004 |
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| 基金项目： | 国家高技术研究发展计划(2007AA04Z442);;国家自然科学基金(50805019) |
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| 摘 要： | 以传统的应力-强度干涉模型为基础,考虑了涡轮转子随机结构尺寸、温度应力、转速、外载荷和材料强度等参数的随机性,利用积分随机有限元和Gram-Charlier级数方法对转子局部应力最大处进行可靠性分析.该方法计算结果与Monte-Carlo仿真值比较,二者相对误差非常小,计算结果比较精确,既避免了有限元计算量大和速度慢的情况,又实现了转子随机结构的可靠性计算.
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| 关 键 词： | 涡轮盘 转子 不确定性 积分随机有限元 可靠性 |
| 收稿时间： | 6/3/2008 9:09:41 AM |
| 修稿时间： | 2008/9/22 0:00:00 |
Research on reliability of turbo-rotor with random structure |
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| WANG Xin-gang,ZHANG Yi-min and WANG Bao-yan.Research on reliability of turbo-rotor with random structure[J].Journal of Aerospace Power,2009,24(6):1316-1320. |
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| Authors: | WANG Xin-gang ZHANG Yi-min and WANG Bao-yan |
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| Institution: | 1.School of Mechanical Engineering and Automation, Northeastern University, Shenyang 110004, China2.Department of Mathematics, Daqing Petroleum Institute, Daqing 163318, China |
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| Abstract: | Based on the traditional stress-strength interference model,and with consideration of the randomness of structural size of turbo-rotor,temperature stress,rotating speed,external loads and material strength,the reliability of the location with largest local stress for rotor was studied using integral stochastic finite element method and Gram-Charlier series method.The relative error between the result of this paper and the one of Monte-Carlo is very small,and the result is exact.To avoid a large quantity com... |
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| Keywords: | turbine disc rotor uncertainty integral stochastic finite element method(ISFEM) reliability |
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