基于全周期仿真代理模型的软管泵分析设计及优化

发布时间：2018-04-06 01:36

本文选题：软管泵　切入点：橡胶-帘线复合材料　出处：《浙江大学》2017年硕士论文

【摘要】：工业软管泵是一种容积泵,使用高性能帘线增强的复合材料橡胶管来模仿生物肠道的蠕动,以输送气、液、固三相介质。本文以分析、设计和优化工业软管泵为目的,首先实现了基于加强筋模型的面向全周期仿真的橡肢-帘线软管建模分析,并设计试验验证了其+精确性;其次以软管模型为基础实现了软管泵的全周期仿真。基于以上分析模型,文章利用最优拉丁超立方取样方法进行取样计算;采用支持向量回归机对样本计算结果进行回归,建立了代理模型;利用遗传算法在代理模型上进行了关键设计参数的优化计算,获得了软管泵的优化设计方案。软管泵样机的测试结果表明:基于代理模型的软管泵优化设计取得了良好的结果,软管泵运行寿命的到了大大增长。·本文主要内容如下所示:(1)研究了面向全周期仿真复合材料泵用软管的建模方法和基于支持向量回归机代理模型的优化设计方法。确定了课题研究的基本技术路线。(2)对软管泵进行了受力分析,并对过早失效的软管泵的失效原因及其破坏因素的分析和归类。构造了橡胶-帘线复合材料软管有限元模型,并设计测试验证了准确性。然后在此基础上,按照实际的工况和受力分析设计并实现了软管泵全周期仿真计算。·(3)以全周期仿真为基础,对软管泵传动系统进行了优化。提出"泵壳悬臂布置方案",使径向力得到分流,减少了主转动轴和轴承上的受力,提高了寿命。(4)以全周期仿真为基础,首先确定了软管泵优化设计目标、约束条件。采用支持向量回归机进行回归拟合。建立了代理模型。最后,采用遗传算法对软管和滑靴关键设计参数进行了优化计算。样机通过了测试,寿命大大延长。
[Abstract]:Industrial hose pump is a kind of volumetric pump, which uses high performance cord reinforced composite rubber tube to simulate the peristalsis of biological intestinal tract to transport gas, liquid and solid three phase medium.In order to analyze, design and optimize the industrial hose pump, this paper first realizes the full-cycle simulation oriented rubber limb-cord hose modeling and analysis based on reinforced reinforcement model, and the design test verifies its accuracy.Secondly, the full cycle simulation of hose pump is realized on the basis of hose model.Based on the above analysis model, the optimal Latin hypercube sampling method is used to calculate the sample, and the support vector regression machine is used to regression the result of the sample calculation, and the agent model is established.The genetic algorithm is used to calculate the key design parameters on the agent model and the optimal design scheme of the hose pump is obtained.The test results of the prototype of the hose pump show that the optimal design of the hose pump based on the agent model has achieved good results.The main contents of this paper are as follows: (1) the modeling method of hose for full-cycle simulation of composite pump and the optimization design method based on support vector regression machine agent model are studied.In this paper, the basic technical route of the research is determined. (2) the force of the hose pump is analyzed, and the causes of failure and the failure factors of the prematurely failure hose pump are analyzed and classified.The finite element model of rubber-cord composite hose is constructed, and the accuracy is verified by design and test.Then, according to the actual working conditions and force analysis, the full cycle simulation calculation of the hose pump is designed and realized. (3) based on the full cycle simulation, the drive system of the hose pump is optimized.A "cantilever arrangement scheme for pump shell" is proposed, which distributes radial force, reduces the force on the main rotating shaft and bearing, and improves the life of the pump. On the basis of the full cycle simulation, the optimum design objective and constraint conditions of the hose pump are first determined.Support vector regression machine is used for regression fitting.A proxy model is established.Finally, the key design parameters of hose and slipper are optimized by genetic algorithm.The prototype has passed the test and the life of the prototype has been greatly extended.
【学位授予单位】：浙江大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TH328

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