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- Keywords: VBARX, system identification, state space model, modal parameters. 关键词:VBARX、系统识别、状态空间、模态参数。
- Modal parameters model 模态参数模型
- This paper presents a synthesized model updating method using the modal parameters and frequency response functions(FRF) extracted from the vibration test data. 文章提出了一种利用模态参数和由振动试验数据求得的频响函数来进行模型修正的方法。
- Based on the modal parameters identified, physical parameters were conversed;besides, combining with the model built up with the method of Kinetic-Static analysis, SIA120's physical model was set up. 在模态参数辩识的基础上,将模态参数转换位物理参数,建立物理参 数模型,并结合动态静力分析建立的理论模型,辩识出机器人的关节 参数。
- Finally, affine parameters model was utilized to merge the separate regions. 最后运用仿射参数模型进行运动块区域合并。
- The change can be represented in terms of either the modal parameters or the structural parameters. 文中将柔度投影法和遗传算法相结合,提出一种基于不完整模态数据的结构损伤定位和定量评估的两阶段法。
- The modal parameters of the sub-soiling shovel were identified by signal analysis software. 用信号分析软件进行深松铲的模态参数识别。
- Using the principle of mode superposition, the formula is given for finding the modal parameters. 利用振型叠加原理,求得整机的动态特性的模态参数表达式。
- A method of cross-point admittance based on ambient excitation to identify large engineering structures modal parameters was reported in this paper. 摘要提出了基于环境激励下,运用跨点导纳法识别大型工程结构模态参数的一种方法。
- The experiments and analysis show that MAC can make the normal modal identifying methods more complete,and quantify the accessing of modal parameters. 实验和分析计算表明,MAC可以弥补常用模态识别方法的不足,使模态参数的评估定量化。
- Numerical results show that the iterative algorithm converges fast and the precise results of modal parameters can be obtained. 数值结果表明,该算法的参数辨识精度高且结果收敛迅速。
- The analysis of this paper indicated modal parameters of engineering structures can be given exactly and validly with cites point admittance theory. 分析表明跨点导纳法能够准确有效地辩识工程结构的模态参数。
- This paper presents a method to eliminate the effects of additive masses, stiffnesses and dampings on the complex modal parameters in experimental modal analysis. 本文提供了在实验模态分析中消除附加质量、刚度和阻尼对复模态参数影响的方法。
- As the modal parameters are identified from the ridges, and the close modes will interfere with each other and affect the result of modal identification. 由于各模态的参数是从时频谱中的峰脊识别而得,而相近模态频率在时频解析图中又容易互相干扰而影响识别结果。
- Take model of drill pipe frame as a example, experimental modal based on ODS's testing method is studied and the modal parameter is distinguished and the testing results are analyzed. 以钻架模型为实例,研究了其ODS测试方法试验模态,识别其模态参数,分析其测试结果。
- Using the nonminimum phase system parameter model transformation of the model for the controller design. 采用了非最小相位系统参数模型转换为参数模型的控制器的设计。
- Aiming at measuring path planning by using peak value,neural network predictor based on parameter model is presented. 针对峰值法中测量路径规划问题,提出了基于参数模型学习的神经网络预测器。
- A single parameter model (SPM) for colorimetric calibration of CRT display was introduced based on Gain-Offset-Gamma model in this paper. 本文基于Gain-Offset-Gamma模型,提出了彩色CRT显示器色度校正的单参数模型(SPM)。
- As the result of limited frequency resolution in the course of FFT and the noise,the accuracy of modal parameters identification is influenced by the frequency response function estimation. 由于FFT过程中截断及舍入等误差的存在以及噪声的影响不能完全克服;采用此方法估计的频响函数来识别模态参数;其精度受到影响.
- In the analysis,APDL language was applied to build a parametric model of one fourth tubesheet including channel,cylinder and 2433 tubes. 采用APDL语言建立了包括管箱、筒体和2433根换热管在内的四分之一管板的参数化模型。