某型航空发动机燃-滑油热交换器模态试验中传感器布点优化策略  

Optimal Sensor Placement for the Modal Tests of an Aero-engine′s Heat Exchanger

作　　者：罗成[1,2] 潘存云[1] 杨坤玉[3] 徐小军[1] 

机构地区：[1]国防科技大学机电工程与自动化学院 [2]96623部队 [3]空军航空维修技术学院

出　　处：《机械科学与技术》2011年第7期1041-1046,共6页Mechanical Science and Technology for Aerospace Engineering

基　　金：航空维改攻关项目(57132008015)资助

摘　　要：对某型航空发动机燃-滑油热交换器实物测量分析的基础上,在有限元软件ABAQUS中建立了其结构有限元模型并进行了模态分析。根据遗传算法原理,构造了一种基于正整数编码的改进遗传算法,利用Matlab编程完成了算法的实现,采用该方法对热交换器模态试验中传感器布点方案进行了优化,得到了传感器对应于其初始布置模式下的优化布置方案。Based on the measure and analysis of heat exchanger used in an aero-engine,a finite element method program,ABAQUS,was used to develop the model of the heat exchanger and for process modal analysis.An ameliorative integer coded genetic algorithm,which was designed on the principle of genetic algorithm and carried out by Matlab,was applied to optimize sensor placement.The optimum sensor placement of the aero-engine heat exchanger corresponding to its primal sensor placement was obtained.Guidance for the practical sensor placement for the modal tests of aero-engine heat exchanger is also provided.

关 键 词：航空发动机燃-滑油热交换器 模态试验 传感器布点优化 遗传算法 

分 类 号：V233[航空宇航科学与技术—航空宇航推进理论与工程]