MODELING AND SIMULATION OF A COLD-ENGINE TEST STAND DRIVELINE WITH EXPERIMENTAL COMPARISONS

机译：具有实验比较的冷发动机试验台传动系的建模与仿真

获取原文

获取原文并翻译 | 示例

页面导航

摘要
著录项
相似文献
相关主题

摘要

There is a need to develop cold-engine test stands for use in diagnosing cylinder faults and measuring gear noise given the new quieter fuel injection systems in modern engines. When engines run hot, these characteristics are not easily measured. By running the unfired cold-engine as a load using an electric motor and driveline, torque measurements can be used to diagnose assembly faults, damage and noise characteristics. In this paper, two cold-engine test stand drivelines are considered. Both stands experience large torsional vibrations excited by the various engine harmonics. Engine fault diagnosis becomes a challenge when these torsional vibrations degrade the measured torque signals. To solve this problem of torsional vibrations, an engine test stand model is developed to understand the system dynamics and analyze the free and forced response characteristics of the system. The model is used to predict the impact of the changes made to the test stand driveline and the trends observed in the simulation results are compared with experimental results for model validation. It is shown that based on model sensitivity analysis the changes made to the driveline parameters help to reduce the amplitude of the driveline resonances considerably. The developed model can be used to design a cold test stand for production diagnostics.

机译：考虑到现代发动机中新型的更安静的燃油喷射系统，有必要开发一种冷发动机试验台，用于诊断汽缸故障并测量齿轮噪声。发动机热运转时，这些特性很难测量。通过使用电动机和传动系统将未点火的冷发动机作为负载运行，扭矩测量可用于诊断装配故障，损坏和噪音特征。在本文中，考虑了两个冷机试验台传动系。两个支架都受到各种发动机谐波激发的大扭转振动。当这些扭转振动降低了测得的扭矩信号时，发动机故障诊断就成为一个挑战。为了解决扭转振动的问题，开发了发动机试验台模型以了解系统动力学并分析系统的自由响应和强制响应特性。该模型用于预测对试验台传动系统所做更改的影响，并将模拟结果中观察到的趋势与实验结果进行比较，以进行模型验证。结果表明，基于模型敏感性分析，对传动系统参数的更改有助于显着降低传动系统共振的幅度。所开发的模型可用于设计用于生产诊断的冷试验台。

著录项

来源
《DSC-vol.75-2; American Society of Mechanical Engineers(ASME) International Mechanical Engineering Congress and Exposition; 20061105-10; Chicago,IL(US)》|2006年|P.1209-1217|共9页
会议地点 ChicagoIL(US)
作者
Kamran A. Gul; Douglas E. Adams;
展开▼
作者单位

Purdue University School of Mechanical Engineering Ray W. Herrick Laboratories 140 S. Intramural Drive West Lafayette, Indiana 47907-2031;

展开▼
会议组织
原文格式 PDF
正文语种 eng
中图分类液压传动;自动控制、自动控制系统;
关键词
A: Characteristic matrix; C: Absolute damping matrix; K: Stiffness matrix; J: Inertia matrix; A: Eigenvalue matrix; Θ: Eigenvector matrix; ψ: Modal shape matrix; α: Hysteretic damping matrix; λ,λ~*: Conjugate eigenvalue diagonal;

机译：[A]：特征矩阵； [C]：绝对阻尼矩阵； [K]：刚度矩阵； [J]：惯性矩阵； [A]：特征值矩阵； [Θ]：特征向量矩阵； [ψ]：模态形状矩阵; [α]：滞后阻尼矩阵; [λ]，[λ]〜*：共轭特征值对角线;

相似文献

外文文献
中文文献
专利

1. Biometric approaches applicable for objectification of forest information, tested by computer simulations using digital models of forest stands [J] . ?tefan ?melko Central European Forestry Journal . 2012,第1期

机译：适用于森林信息客观化的生物识别方法，通过使用林分数字模型的计算机模拟进行测试
2. Biometric approaches applicable for objectification of forest information, tested by computer simulations using digital models of forest stands [J] . ?tefan ?melko Lesnicky casopis . 2012,第1期

机译：适用于森林信息客观化的生物识别方法，通过使用林分数字模型的计算机模拟进行测试
3. Adaptation of the BESTEST intermodel comparison method for proposed ASHRAE standard 140P: Method of test for building energy simulation programs [J] . Ronald D Judkoff Joel S Neymark ASHRAE Transactions . 1999,第2期

机译：拟议的ASHRAE标准140P的BESTEST模型间比较方法的改编：建筑能耗模拟程序的测试方法
4. MODELING AND SIMULATION OF A COLD-ENGINE TEST STAND DRIVELINE WITH EXPERIMENTAL COMPARISONS [C] . Kamran A. Gul, Douglas E. Adams ASME International Mechanical Engineering Congress and Exposition . 2007

机译：实验比较冷发动机试验台牵引器的建模与仿真
5. Investigation of wavy interfacial morphology in magnetic pulsed welding: Mathematical modeling, numerical simulations and experimental tests [D] . Nassiri, Ali 2015

机译：电磁脉冲焊接中的波状界面形态研究：数学建模，数值模拟和实验测试
6. Surgical Simulations Based on Limited Quantitative Data: Understanding How Musculoskeletal Models Can Be Used to Predict Moment Arms and Guide Experimental Design [O] . Jennifer A. Nichols, Michael S. Bednar, Wendy M. Murray -1

机译：基于有限的定量数据的手术模拟：了解如何使用骨骼肌肉模型预测力矩臂并指导实验设计
7. The thermodynamic changes that occur upon mixing five models of formamide and three models of water, including the miscibility of these model combinations itself, is studied by performing Monte Carlo computer simulations using an appropriately chosen thermodynamic cycle and the method of thermodynamic integration. The results show that the mixing of these two components is close to the ideal mixing, as both the energy and entropy of mixing turn out to be rather close to the ideal term in the entire composition range. Concerning the energy of mixing, the OPLS/AA-mod model of formamide behaves in a qualitatively different way than the other models considered. Thus, this model results in negative, while the other ones in positive energy of mixing values in combination with all three water models considered. Experimental data supports this latter behavior. Although the Helmholtz free energy of mixing always turns out to be negative in the entire composition range, the majority of the model combinations tested either show limited miscibility, or, at least, approach the miscibility limit very closely in certain compositions. Concerning both the miscibility and the energy of mixing of these model combinations, we recommend the use of the combination of the CHARMM formamide and TIP4P water models in simulations of water-formamide mixtures. [O] . Kiss, Bálint, Fábián, Balázs, Idrissi, Abdenacer, 2017

机译：通过使用适当选择的热力学循环和热力学积分方法进行蒙特卡罗计算机模拟，研究了将五种甲酰胺模型和三种水模型混合在一起时发生的热力学变化，包括这些模型组合本身的可混溶性。结果表明这两种组分的混合接近于理想的混合，因为混合的能量和熵在整个组成范围内都非常接近理想的项。关于混合的能量，甲酰胺的OPLS / AA-mod模型与其他模型相比，在质量上有不同的表现。因此，该模型得出的结果是负的，而其他模型则综合考虑了所有三个水模型的结果的正能量。实验数据支持后一种行为。尽管混合的亥姆霍兹自由能在整个组成范围内始终为负，但大多数测试模型组合显示出有限的混溶性，或至少非常接近某些组合物的混溶性极限。关于这些模型组合的可混溶性和混合能量，我们建议在水-甲酰胺混合物的模拟中使用CHARMM甲酰胺和TIP4P水模型的组合。

MODELING AND SIMULATION OF A COLD-ENGINE TEST STAND DRIVELINE WITH EXPERIMENTAL COMPARISONS

摘要

著录项

相似文献

相关主题

期刊订阅