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浙江大学学报(工学版)
浙江大学学报(工学版)
计算机技术、信息工程     
塑料机油冷却器盖加强筋参数的多目标优化
张俊红,郭迁,王健,徐喆轩,陈孔武
1. 天津大学 内燃机燃烧学国家重点实验室,天津 300072；
2. 天津大学仁爱学院 机械工程系,天津 301636
Multi-objective optimization of ribs design parameters for plastic oil cooler cover
ZHANG Jun hong, GUO Qian, WANG Jian, XU Zhe xuan, CHEN Kong wu
1. State Key Laboratory of Engines, Tianjin University, Tianjin 300072, China;
2. Mechanical Engineering Department of Tianjin University Ren’ Ai College, Tianjin 301636, China
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摘要：

在塑料机油冷却器加强筋参数优化设计中,为了有效地降低振动噪声及提高罩盖强度,结合流固耦合、响应曲面法（RSM）、带精英策略的非支配排序遗传算法（NSGA-II）对塑料机油冷却器盖加强筋参数进行多目标优化.采用流固耦合的方法对原塑料机油冷却器盖的振动噪声水平进行预测,根据预测结果识别出对噪声贡献度较大的耦合模态频率|计算流体压力作用下罩盖的应变能|在罩盖底面布置加强筋,基于最优拉丁超立方设计和响应曲面法（RSM）建立加强筋设计参数与识别出的耦合模态频率、应变能和加强筋体积之间的近似模型|以耦合模态频率、应变能及加强筋体积作为优化目标,应用NSGA-II对加强筋设计参数进行优化.结果表明,相对于原塑料机油冷却器盖,总声功率级降低了1.6 dB,应变能降低了1 561 N·mm.
Abstract:

 In the design of ribs for plastic oil cooler cover, the liquid-solid coupling model, response surface method (RSM) and fast nondominated sorting genetic algorithm (NSGA-II) were used for multi-objective optimization of ribs design parameters in order to reduce the radiated noise and increase the structural strength of plastic oil cooler cover. The liquid-solid coupled method was used to predict the radiated noise and the main coupling modal frequencies having great contributions to the radiated noise of the plastic oil cooler cover were identified. The strain energy of the oil cooler cover was computed under the effect of fluid pressure. An approximation model between design parameters of ribs and coupling modal frequencies and the strain energy was established based on the optimal Latin hypercube and response surface method (RSM). The optimization objectives were the coupling modal frequencies and the strain energy. The NSGA-II was applied for multi-objective optimization of ribs design parameters for plastic oil cooler cover. The overall noise was reduced 1.6 dB and the compliance was reduced 1 561 N·mm compared with the initial plastic oil cooler cover．
出版日期: 2016-07-23
:  TK 422  
基金资助:

推土机等工程机械减振降噪技术研究与应用项目（2015BAF07B04）.
作者简介: 张俊红（1962-），女，教授，从事内燃机振动噪声研究. E-mail: zhangjh@tju.edu.cn
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张俊红,郭迁,王健,徐喆轩,陈孔武. 塑料机油冷却器盖加强筋参数的多目标优化[J]. 浙江大学学报(工学版), 10.3785/j.issn.1008-973X.2016.07.019.

ZHANG Jun hong, GUO Qian, WANG Jian, XU Zhe xuan, CHEN Kong wu. Multi-objective optimization of ribs design parameters for plastic oil cooler cover. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 10.3785/j.issn.1008-973X.2016.07.019.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2016.07.019    或    http://www.zjujournals.com/eng/CN/Y2016/V50/I7/1360

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