associate equation

associate equation的基本解释

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相伴方程

与associate equation相关的网络例句 [注：此内容来源于网络，仅供参考]

In this topic, the dynamic analysis methods for piezoelectric vibrator are studied systematically based on the theoretical model, FEM numerical experimentation and FEM governing equation for given compound-mode vibrator, and some valuable conclusions are obtained. The main work accomplished is summarized as follows: 1.Elaborate the main modeling methods for piezoelectric vibrator and the significance and necessity to study the dynamic characteristics of piezoelectric vibrator which emphasize the urgency of this paper. 2.Take the bending deformation induced by piezoelectric ceramic as example, the energy transfer mechanism of electric energy to mechanical energy are analyzed; the motion and force transfer mechanism are analyzed for the longitudinal-bending vibrator. 3.Based on mode assumption and Hamilton principle, the coupling model of piezoelectric vibrator of linear USM is built; moreover, the equivalent circuit model is obtained and a coupling equation represents the relation between electric parameters and mechanical parameters is derived which provides foundation to match the vibrator and driving circuit. 4.Combine the constitutive equation of piezoelectric ceramic with elastic-dynamical equation, geometric equation in force field and the Maxwell equation in electric field and the corresponding boundary condition equation, the FEM control equation for piezoelectric vibrator of USM to solve dynamic electro-mechanical coupling field is established by employing the principle of virtual displacement. The equation lays the foundation to study the non-linear constitutive equation of piezoelectric ceramic driven by high-power. 5.Define the dynamic indexes of characteristic of vibrator and carry out variable parameters simulation by calculating the model parameters and the electric characteristics of vibrator are simulated according to the equivalent circuit model. By numerical experimentation, the working mode of vibration of vibrator and the shock excitation results of the working frequency band which provides the mode frequency to realize bimodal are analyzed. Detailed calculation of the electro-mechanical coupling field parameters is made by programming the FEM control equation.

本课题从理论模型、有限元数值试验、有限元控制模型等方面以复合振动模式振子为例对超声电机压电振子的动力学特性及其分析方法进行了全面系统地研究，得出了许多有价值的结论，主要概括如下： 1、阐述了目前针对超声电机压电振子的主要建模方法，对压电振子动态特性的研究意义和必要性进行了论述，突出了本文研究内容的迫切性； 2、以压电陶瓷诱发弹性体发生弯曲变形为例，分析了压电陶瓷通过诱发应变来实现机电能量转换的机理；对基于纵弯模式的压电振子的运动及动力传递机理进行了分析； 3、基于模态假定，利用分析动力学的Hamilton原理，建立了面向直线超声电机压电振子的机电耦合动力学模型，并据此建立了压电振子的等效电路模型，导出了电参量与动力学特性参量的耦合方程，为压电振子与驱动电路的匹配提供了依据； 4、从压电陶瓷的本构方程出发，综合力场的弹性动力学方程、几何方程、电场的麦克斯韦方程以及相应的边界条件方程，采用虚位移原理，建立了压电振子动态问题机电耦合场求解的有限元控制方程，为研究其大功率驱动下的非线性本构模型奠定了基础； 5、界定压电振子的动力学特性指标，对压电振子的机电耦合动力学模型参数进行计算及变参数仿真；依据等效电路模型，对压电振子的电学特性进行了仿真分析；通过有限元数值实验，对压电振子工作模态附近的模态振型及工作频率附近的频段进行了激振效果分析，找出了实现模态简并的激振频率；利用有限元控制方程，通过编程计算，对压电振子的力电耦合场参数进行了详细计算，得出了一些有价值的结论。

Post-secondary (Sub-degree course)（专上教育: Including all Higher Certificate/ Higher Diploma/ Professional Diploma/ Associate Degree/ Pre-Associate Degree/ Endorsement Certificate/ Associateship or equivalent courses in Universities/ Vocational Training Council, other sub-degree courses in Universities funded by University Grants Committee, Higher Certificate/ Higher Diploma/ Professional Diploma/ Associate Degree/ Pre-Associate Degree or equivalent courses in former Polytechnics/ other statutory or approved Postsecondary Colleges, Higher Diploma/ Professional Diploma/ Associate Degree/ Pre-Associate Degree or equivalent courses in other colleges providing postsecondary courses, sub-degree courses in Hong Kong Institute of Education, Sub-degree level nurse training courses/ dental training courses, Distance learning sub-degree level courses and other sub-degree level courses

包括大学／职业训练局的高级证书／高级文凭／专业文凭/副学士/副学士先修/增修证书/院士衔或同等课程、由大学资助委员会资助的其它大学非学位课程、前理工学院/其它法定或认可的专上学院的高级证书/高级文凭/专业文凭/副学士/副学士先修或同等课程、其它专上学院开设的高级文凭/专业文凭/副学士/副学士先修或同等课程、香港教育学院的非学位课程、护士训练非学位课程、牙科训练非学位课程及遥距非学位课程。

It is Song Jinghua of 51 years old to be graduated from major of Fudan University business management, came 1976 1994, it is military career 18 years, join in after be transferred to civilian work associate group, have successively held the posts of associate ministry of resource of group labor power vise general manager, associate group limited company vise general manager, associate group limited company general manager, associate general manager of division of group Su Wan, associate ministry of big client of group big China and Russia area is standing vise general manager.

现年51岁的宋京华毕业于复旦大学企业治理专业，1976年至1994年，18年为军人生涯，转业后加盟联想集团，历任联想集团人力资源部副总经理、联想集团有限公司副总经理、联想集团有限公司总经理、联想集团苏皖区总经理、联想集团大中华及俄罗斯区大客户部常务副总经理。

与associate equation相关的网络解释 [注：此内容来源于网络，仅供参考]

associate equation：相伴方程

assignment problem 配置问题 | associate equation 相伴方程 | associated equation 相伴方程

associate integral equation：関連積分方程式

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