ODS 试验与模态仿真相结合改善发动机水泵螺栓共振断裂

来源 :LMS公司 | 被引量 : 0次 | 上传用户：Pinger605

【摘要】

：

本文通过LMS.test.Lab 软件针对长城汽车自主开发的某柴油发动机水泵-高压油泵安装系统进行了ODS 试验测试，并使用HYPERWORK 建立该系统模态仿真分析模型，用于诊断发动机水泵连接螺栓断裂的原因，并提出了三种结构改进方案，并通过模态仿真分析对比各方案的优劣，选取最优方案进行台架试验验证。试验和计算结果表明水泵-高压油泵系统在196Hz 左右发生共振导致水泵连接螺栓断裂。仿真计算

【作者】

：

孔德芳王振方杨景玲郭凯彪

【机构】

：

长城汽车股份有限公司动力研究院，保定 071000

【出处】

：

LMS公司

【发表日期】

：

2012年3期

【关键词】

：

ODS mode simulation resonance structure optimization

下载到本地 , 更方便阅读

下载此文赞助VIP

声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架

论文部分内容阅读

其他文献

High Throughput Gene Expression Analysis under the Case-Cohort Design:A comparison of different meth

The case-cohort design is a cost-efficient method in analysis of the time to failure in a large cohort with a low failure rate.

会议

Case-cohort designCox-proportional-hazards modelsfalse discovery ratepowerhi

Proposed New Powerful Meta-Normality Test by Fisher's Inverse Chi-Square Approach

Introduction: Normality is one of the most important assumptions for parametric test and models.Numerous normality tests were developed for different conditions but most of them have low power in that

会议

meta-normality testFisher's Inverse Chi-SquareShapiro-Wilk testShapiro-F

Prediction model and risk scoring tool in the local setting of obstetric practice

Clinical prediction model are getting more and more in the medical literature yet their use in practice seems limited.Health and care management will vary with situation,location,and institution.Its i

会议

prediction modelpreeclapsiastructural heart diseasepregnancy

Joint mean-covariance modelling and its R package:jmcm

Longitudinal studies commonly arise in various fields such as psychology,social science,economics and medical research,etc.

会议

Cholesky decompositionCovariance matrixcovariance modelsjmcmR package

Conditional Screening for Ultra-high Dimensional Covariates with Survival Outcomes

Identifying important biomarkers that are predictive for cancer patients prognosis is key in gaining better insights into the biological influences on the disease and has become a critical component o

会议

Conditional screeningCox modelDiffuse large B-cell lymphomahigh-dimensional v

A TWO-PHASE APPROACH TO ACCOUNT FOR UNMEASURED CONFOUNDING AND CENSORING OF A FIXED TIME ENDPOINT

Estimation of the effect of a treatment in the presence of unmeasured confounding is a common objective in observational studies.The Two Stage Least Squares(2SLS)Instrumental Variables(IV)procedure is

会议

Comparative effectiveness researchInstrumental variableMissing survival timeS

Simulation based Bias Correction Methods for Complex Models

Along the ever increasing data size and model complexity,an important challenge frequently encountered in constructing new estimators or in implementing a classical one such as the maximum likelihood

会议

Iterative bootstrapTwo-step estimatorsIndirect inferenceRobust statisticsGen

Degrees of freedom for combining multiple regression with factor analysis

In the AGEMAP genomics study,researchers were interested in detecting genes related to age in a variety of tissue types.After not finding many age-related genes in some of the analyzed tissue types,th

会议

Factor AnalysisDegrees of FreedomMultiple RegressionRandom Matrix Theory

基于LMS Virtual Lab/Acoustic 的车内噪声预测

车内噪声是评价汽车NVH 性能的重要指标。随着现代汽车技术的发展，人们对汽车噪声也提出了更高的要求。在汽车开发阶段就进行车内噪声预测，并在此基础上对其优化和控制对提高开发效率有很大帮助。在对整车进行动力学分析，结构响应振动计算后，采用LMS Virtual Lab/Acoustic 软件进行了车内噪声预测。

会议

NVHmodal couplingacoustic predictionsimulation

Virtual lab 在汽车进气系统NVH 性能提升方面的应用

随着汽车行业技术水平的不断进步，顾客对汽车各项性能要求也越来越高，汽车NVH 性能是汽车的重要性能指标之一，其中进气系统的NVH 性能是整车NVH 性能重要的组成部分。本文介绍了利用LMS virtual lab 在提升某车型进气系统NVH 性能的实际应用。

会议

vehicleintake systemtransmission lossvirtual lab

ODS 试验与模态仿真相结合改善发动机水泵螺栓共振断裂

与本文相关的学术论文