- 更多网络例句与弹性体动力学相关的网络例句 [注：此内容来源于网络，仅供参考]
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Based on this relation, it is possible not only to obtain the principle of virtual work and the reciprocal theorem in dyn...
然后从该式出发，不仅可以得到有孔隙的耦合热弹性体动力学的虚功原理和互等定理，而且能系统地导出成互补关系的11类变量、9类交量、6类变量及3类变量简化Gurtin型变分原理。
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According to elastodynamics theory, the dynamic model of machining the slender rod is founded by axial turn -milling, the calculation formula of the natural frequencies and the main vibration mode are ob- tained, and the dynamic response of the slender rod forced vibration is studied under simple harmonic excitation.
根据弹性体动力学理论，建立轴向车铣细长杆的动力学模型，得到了各阶固有频率和主振型的计算公式，分析了在简谐激励下细长杆强迫振动的动力学响应。
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Point to take MQ2535 portal crane jib system as to research object, take finite element and mechanical kinetics as to theoretical fundamental, make use of ansys8.1 to emulate jib systemic at the course of luffing in dynamics , obtain luffing procedural dynamics data of rigid body and elastic body of the jib system , according to those data,which is to improve these system designs beneficial conclusion henceforth.
针对以上问题，本文以MQ2535门座起重机臂架系统为研究对象，以有限元和机械动力学为理论基础，借助ANSYS8.1对臂架系统的变幅过程进行了动力学仿真，得到了臂架系统刚体和弹性体变幅过程的动力学数据，从数据中得到了对今后改善该系统设计的有益结论。
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The jib system of portal crane is considered to be elastomer in this paper. Besides, taking finite element as basic theory and mechanical dynamics as analysis method,the paper simulates the virtual luffing process of jib system and seeking the relationship between plane movement and dynamic pressure condition of jib system using ANSYS8.1. By analyzing ,the paper gives some advice on structure optimizing.
针对以上问题，本文以MQ2535门座起重机臂架系统为研究对象，将门座起重机整个臂架系统视为弹性体，以机械动力学和有限元为理论基础和分析手段，运用有限元软件ANSYS8.1模拟臂架系统的实际变幅过程，探寻物品在变幅过程中水平移动与臂架系统结构动态受力之间的关系；通过分析其受力情况，对其结构的优化提出了一些建议。
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For raising the calculating efficieney of multibody system dynamic equation, especially moving elastic body, a method for solving nonlinear dynamic equation is presented by combining direct integration and Neumann series.
为了提高多体系统动力学方程，特别是运动弹性体的动力学方程的求解效率，提出了求解非线性的或时变的动力学方程的Neumann级数一直接积分解法。算例表明了该方法的正确性和有效性。
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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。
- 更多网络解释与弹性体动力学相关的网络解释 [注：此内容来源于网络，仅供参考]
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elastomer adduct：弹性体加成物
elastokinetics 弹性动力学 | elastomer adduct 弹性体加成物 | elastomer alloy 弹性体合金
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elastodynamics：弹性体动力学
elastin 弹力素 | elastodynamics 弹性体动力学 | elastodynamicselastokinetics 弹性动力学
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elastodynamics：弹性动力学 弹性体动力学
elastodurometer 弹性硬度计 | elastodynamics 弹性动力学 弹性体动力学 | elastodynamicstress-intensityfactor 弹性动力应力强度因数