| 考虑轴承游隙的非线性动力学轴承-转子系统优化 |
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| 引用本文： | 胡清华,邓四二,滕弘飞.考虑轴承游隙的非线性动力学轴承-转子系统优化[J].航空动力学报,2011,26(9):2154-2160. |
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| 作者姓名： | 胡清华 邓四二 滕弘飞 |
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| 作者单位： | 1. 大连理工大学机械工程学院,辽宁大连,116024
2. 河南科技大学机电工程学院,河南洛阳,471003 |
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| 基金项目： | 国家“十一五”科技攻关项目(JPPT-115-189); 国家自然科学基金(50975033) |
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| 摘 要： | 针对一类带动态性能约束的轴承-转子系统优化设计存在的问题,做如下改进工作：一是在目前一类轴承-转子系统优化模型基础上,将轴承游隙作为设计变量,考虑轴承游隙的影响;二是提出了一种演化算法/线性搜索的混合算法,将优化过程分为两个阶段,首先采用演化算法对问题全局寻优,求得给定代数时的优化解,再以此解作为新的初始解,采用线性搜...
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| 关 键 词： | 非线性动力学 轴承游隙 转子优化 演化算法 线性搜索 |
| 收稿时间： | 9/4/2010 12:00:00 AM |
| 修稿时间： | 2010/12/5 0:00:00 |
Optimization of rotor-bearing system with nonlinear dynamics considering internal clearance |
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| HU Qing-hu,DENG Si-er and TENG Hong-fei.Optimization of rotor-bearing system with nonlinear dynamics considering internal clearance[J].Journal of Aerospace Power,2011,26(9):2154-2160. |
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| Authors: | HU Qing-hu DENG Si-er and TENG Hong-fei |
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| Institution: | School of Mechanical Engineering, Dalian University of Technology, Dalian Liaoning 116024, China;School of Mechatronics Engineering, Henan University of Science and Technology, Luoyang Henan 471003, China;School of Mechanical Engineering, Dalian University of Technology, Dalian Liaoning 116024, China |
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| Abstract: | In view of existing problems in optimization of a rotor-bearing system with dynamic performance constraints, the following improvements were made. Firstly, influence of clearance was considered in the optimization model. Secondly, a hybrid algorithm based on evolutionary algorithm/line search method was proposed. In the proposed algorithm, there were two optimization processes, global searching process using evolutionary algorithm to obtain an optimal solution and local searching starting with the optimal solution by line search method. Numerical results show that: the clearance has great influence on optimization results. The proposed algorithm overcomes the difficulty in choosing initial value for line search method, with higher success rate under the same calculation accuracy. |
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| Keywords: | nonlinear dynamics bearing clearance rotor optimization evolutionary algorithm line search |
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