Dynamic Simulations of Engine Cylinder-Head

吴俊清

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Dynamic Simulations of Engine Cylinder-Head

更新时间：2026-09-14

- Dynamic Simulations of Engine Cylinder-Head
- 某发动机缸盖的动力学仿真研究
- Issue 1, Pages: 18-21(2005)
- 作者机构：
  
  中北大学电子工程系,山西,太原,030051
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2005
- 稿件说明：
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吴俊清. Dynamic Simulations of Engine Cylinder-Head[J]. 2005, (1): 18-21.
DOI：

吴俊清. Dynamic Simulations of Engine Cylinder-Head[J]. 2005, (1): 18-21. DOI：

摘要

　对某发动机缸盖进行了动力学仿真研究.在缸盖有限元模型的基础上施加了模拟实际工作状态的边界约束和载荷条件

利用振型叠加法对其进行动态响应分析

并与设计指标对比

采用了灵敏度分析方法

对原缸盖结构参数进行了动力修改.计算出缸盖的动态特性参数随设计变量的变化灵敏度

选择对动态特性影响较大的设计参数作为修改参数.修改后的缸盖动态响应结果能够满足给定的设计指标

结构达到了最优设计

为整个发动机的动力学仿真研究奠定了基础.

Abstract

Dynamic simulations of cylinder head were researched. Boundary restrictions and loading conditions that simulated the actual ones were exerted on the finite element model of the cylinder head and its dynamic responses were calculated with the superposition method of vibration mode. Dynamic modifying of some structure parameters was calculated to fulfill the design requirements. The to-be-amended parameters were selected from all the parameters according to the so called sensitivity analysis method

that was to select the parameters which vary the dynamic properties greatly

based on the calculations of the variation of the dynamic properties with each parameter. With this method

the dynamic properties of the amended cylinder head could satisfy the design requirements. The above optimization of cylinder head lays a solid foundation of the dynamic simulations of complete engine.

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references

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　ImregunM,VisserWJ.AReviewofmodelupdatingtechniques[J].TheShockandVibrationDigest,1991,10(2):131-133.

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　CafeoJA,DeClerckJP.Anassessmentfunctionforimprovingtheaccuracyofestimatedmodalparameters[J].ASMEModalAnalysis,1995,10(4):311-313.

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