| 变风速条件下风电齿轮随机可靠性优化 |
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| 引用本文： | 陈涛,孙伟,张旭,魏静.变风速条件下风电齿轮随机可靠性优化[J].沈阳工业大学学报,2011,33(5):496-500. |
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| 作者姓名： | 陈涛 孙伟 张旭 魏静 |
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| 作者单位： | 大连理工大学机械工程学院; |
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| 基金项目： | 国家青年自然科学基金资助项目(51005033) |
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| 摘 要： | 为了在变风速条件下对风电齿轮强度可靠性进行分析及优化，提出了齿轮随机可靠性优化模型.利用风速观测数据推导轮齿载荷的波动特性，定义相关随机量以适应应力强度干涉模型，应用蒙特卡罗法建立齿轮参数和强度可靠度之间的响应关系，同时，制定相关约束条件并以遗传算法作为求解策略.该优化模型不仅能够定量分析风速变化对齿轮强度可靠性的影响，并且可在随机参数情况下对齿轮强度可靠性进行优化.算例对5种风速模式下的风电齿轮强度可靠度进行了分析，结果表明：风速变化将导致传动齿轮强度可靠度下降，经过优化后强度可靠度得到明显改善，在5种模式下均不小于98.89%.
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| 关 键 词： | 变风速 随机可靠性 风力发电 齿轮接触应力 齿轮接触强度 应力-强度干涉模型 蒙特卡罗法 遗传算法 可靠性优化 |
Random reliability optimization of wind power gear under variable wind velocity |
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| CHEN Tao,SUN Wei,ZHANG Xu,WEI Jing.Random reliability optimization of wind power gear under variable wind velocity[J].Journal of Shenyang University of Technology,2011,33(5):496-500. |
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| Authors: | CHEN Tao SUN Wei ZHANG Xu WEI Jing |
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| Affiliation: | CHEN Tao,SUN Wei,ZHANG Xu,WEI Jing(School of Mechanical Engineering,Dalian University of Technology,Dalian 116024,China) |
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| Abstract: | In order to analyze and optimize the strength reliability of wind power gear under the condition of variable wind velocity,an optimization model for gear random reliability was presented.The observed wind velocity data was used to deduce the fluctuant characteristic of tooth load,and the correlated random quantities were defined to fit the stress-strength interference model.The response relationship between gear parameters and strength reliability was established by Monte Carlo method.In addition,the constr... |
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| Keywords: | variable wind velocity random reliability wind power generation gear contact stress gear contact strength stress-strength interference model Monte Carol method genetic algorithm reliability optimization |
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