The aim of this thesis is to explore applications of modal experimental analysis, computer simulation and dynamic optimum design of machine structures on the assigned design goals.
本文主要研究旨在探索运用模态实验、计算机仿真分析及优化对机床结构进行指定目标下的动态设计。
While these phases can be, in the simplest cases, very abbreviated, experimental modal analysis depends upon the understanding of the basis for each phase.
在最简单的情况下，这些阶段可以非常简短，但试验模态分析基于对每个阶段基础内容的理解。
Now I hope you understand the problems associated with running an experimental modal test with an operating excitation.
我希望现在你理解了用工作激励进行试验模态测试相关的这个问题。
The process of determining modal parameters from experimental data involves several phases.
从试验数据确定模态参数的过程分成几个阶段。
The results indicate that the simulation results are close to the experimental ones that the modal can be used for simulation of vibration test with attached structural members on it.
仿真结果表明，空台正弦扫描试验仿真得到的台面各节点加速度幅值与试验结果比较接近，所建立的模型可用于试件振动台试验仿真。
As in most experimental situations, the success of the experimental modal analysis process depends upon having very specific goals for the test situation.
大多数试验情况下，成功进行模态试验依赖于对试验情况有非常明确的目标。
Influence of the magnetic damper on bending modal damping of the system is studied by theoretical and experimental modal analysis.
通过理论计算及试验模态分析，研究了磁悬浮阻尼器参数对系统弯曲模态阻尼比的影响。
The distribution of the tire side force was obtained by using geometric deformation of contact patch of cornering tires and the principle of modeling tire with experimental modal parameters.
对轮胎进行侧向激振试验得到轮胎的侧向模态参数，依据轮胎侧偏时印迹的几何变形及模态参数建模的思想，得到了侧向力分布。
Compared with the results of experimental mode, it proves that the theory and methods of operating modal analysis are practicable.
与试验模态结果相对比，证实了工作模态分析理论与方法的可行性。
It is analyse and calculation about the dynamic characteristic of motorcycle frame by FEM model, carry on validation through experimental modal method, Get back frame modal parameter and shake type.
利用有限元方法对摩托车车架动态特性进行了分析计算，并通过实验模态方法进行了相应的实验验证，获得了车架模态参数和振型。
The vibration characteristics of propeller blades have been investigated by using experimental modal analysis technique.
本文用试验模态分析技术研究了螺桨桨叶振动特性。
A microcomputer system developed for automotive experimental modal analysis is presented in this paper.
本文介绍了自行开发的适用于汽车工程的实验模态分析微机系统。
The experimental modal analysis of five-axis linkage milling machine is made by using hammer-hitting pulse-inspirit method and change time based sampling method.
对五轴联动铣床采用锤击脉冲激励法和变时基采样方法进行实验模态分析，获得机床的各阶固有频率、振型及其相应的振型动画。
Modeling and calculate results show that using experimental modal parameters can easily establish tire properties models and calculated tire dynamic properties under various conditions.
建模和计算结果说明利用试验模态参数可以方便地建立轮胎的非稳态模型，并可以直接计算出不同工况下的轮胎动态特性。
A time domain model developed using experimental modal parameters to simulate tire and vehicle dynamic performance was used to develop the transient response equation for different lateral inputs.
在利用试验模态参数建立的轮胎侧向非稳态模型基础上，推导了用于计算不同侧向输入的时域瞬态响应公式。
At last, the paper introduces the experimental modal analysis for truck SC-110's cab and structural using the microcomputer system.
最后介绍了应用该系统对SC- 110汽车驾驶室和车架总成的实验模态分析。
The nature frequency, normal mode and dynamic response of gear system are studied by theoretical modal analysis method combined with experimental modal analysis method.
采用试验模态分析和理论模态分析相结合的方法，研究了齿轮系统的固有特性和动力响应。
Finite element dynamic analysis and experimental modal analysis have been carried out utilizing the large structure analysing program SAP5P for a certain motor vehicle frame.
应用大型结构分析软件SAP5P，对某车架进行了有限元动态分析和实验模态分析。
The geometric parameters of the model are directly obtained from the tire design, while the physical parameters, are calculated from the experimental modal parameters.
利用轮胎的试验模态参数和轮胎圈模型的特征方程确定圈模型的物理参数。
This paper explores the experimental modal analysis of machine tool structures with rotating spindle. the excitation signal is the pseudo-random binary M series.
本文利用M序列的随机信号进行了机床运转状态下试验模态分析的探索。
Furthermore, a new method combining computational mechanics, neural network and experimental modal analysis was demonstrated for composite health monitoring.
进而提出了一种将计算力学、神经网络和实验模态分析相结合的复合材料结构脱层损伤检测的新方法。
Two modal identification methods undergoing ambient excitation are investigated for the object of large structures based on modern experimental modal analysis theory and ambient vibration technology.
本文以大型工程结构为研究对象，以近代实验模态分析理论及环境振动识别技术为基础，着重研究了两类基于环境振动的模态参数识别方法。
In this paper, the dynamics characteristics and experimental research of the bridge crane modal are analysised.
本文是针对一个已建成的集装箱岸桥模型，对其进行动力特性计算与试验分析。
Based on modal synthetical method and experimental modal analysis, the main parameters of dynamic vibration absorber on a cantilever plate and on a structural model are optimized in this paper.
本文运用模态子结构综合法进行结构动态计算和用实验模态分析法进行模型试验，对悬臂平板和结构模型的动力吸振器主要参数进行了比较系统的优化研究。
The history of experimental modal analysis began in the 1940's with work oriented toward measuring the modal parameters of aircraft so that the problem of flutter could be accurately predicted.
试验模态分析的历史始于1940年，用于测量飞机的模态参数，以准确预测颤振问题。
Based on the experimental modal analysis, compare the modal parameters to verify the validity of finite element model.
在试验模态分析基础上，对比分析模态参数，验证有限元模型的有效性。
In this paper, the FEM and the experimental modal analysis techniques are employed to analyze the frequency response of the Fuel Rail Assembly. A simplification method is introduced.
采用有限元方法与模态试验技术，分析了燃油分配管总成的频率特性。
The experimental modal analyses have been done under static condition and high-speed rotating condition for a given thin cylindrical shell by using shock vibration excitation method.
对一圆柱薄壳在静止状态和高速旋转状态下进行了模态试验。
Program calculation and experimental verification has been conducted on the modal.
并对模型进行了编程计算及实验验证。
Started from mechanics mode, the theoretical mode of modal analysis has been drawn, illustrating the principle of experimental modal analysis from both the positive and negative viewpoint.
从物理模型出发，推导出了模态分析的理论模型，从正反两个角度说明了实验模态分析的原理。
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