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动力学振动
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  dynamic vibration
     Study on dynamic vibration models of disc opener of the planter
     圆盘开沟器动力学振动模型的研究
短句来源
     Dynamic vibration equation of drilling string is established based on the theory of dynamics.
     根据动力学理论建立钻柱动力学振动方程。
短句来源
     The dynamic vibration of hydraulic system is characteristic of instantaneous velocity, pressure and its oscillation.
     液压系统动力学振动程度可用瞬时速度、压力和压力脉动描述其特性。
短句来源
     In this paper, theories of multi-body dynamics and structural dynamics are combined to apply to the dynamic modeling of the elastic floating raft system. The dynamic vibration equation of the system is given taking account of the coupling of the rigid motion and the elastic vibration.
     本文以多体动力学和结构动力学为理论基础,对弹性浮筏隔振系统进行动力学建模,考虑筏体的刚体运动和弹性变形的耦合,由此推导出整个隔振系统的动力学振动方程。
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  “动力学振动”译为未确定词的双语例句
     Reactive Dynamics for Si_4+Si_3: Influences of Vibrationally Excited State to Reaction
     Si_(4+)Si_3反应动力学:振动激发态对反应的影响
短句来源
     To study eccentric inertia navigation system's coupling vibration, differential equation of coupling vibration system was built firstly, and then the modal analysis and the random response analysis were done using general FEM software-ANSYS to study the system's dynamic characteristic. Both explained the eccentric bring angel vibration.
     为研究偏心引发的角振动与线振动耦合对弹性支撑惯导系统的影响,首先建立了振动耦合系统微分方程,然后采用通用有限元分析软件进行模态和随机响应分析计算,确立系统的动力学振动特性,从理论和数值计算两方面解释了角振动产生并与线振动耦合的原因——系统偏心。
短句来源
     Then the vibration equations in the wheel/rail system dynamics are constituted again and the rigidity matrix, the damping matrix and the load matrix can be formed by different computer processor for the sake of increasing parallel computation efficiency.
     随后在公式级对轮轨系统动力学振动方程组的组建进行了优化,将组建刚度矩阵、阻尼矩阵和荷载列阵模块化。
短句来源
     The paper introduces a linear model of no-tilling seeding movement, in order to dessribe the relation of the movement character of no-tilling seeding to sowing quality.
     为了测试免耕播种机的运动特性对播种质量的影响 ,从动力学振动角度建立了免耕播种机运动的线性模型。
短句来源
     In this paper, the floating raft is considered as a two-stage rigid-flexible coupling isolation system, and the dynamical vibration equation of the system is also deduced according to flexible multibody dynamics.
     本文将浮筏系统考虑为刚柔耦合的双层隔振系统,利用柔性多体动力学知识导出了浮筏隔振系统的动力学振动方程。
  相似匹配句对
     The Dynamics for Composition of Vibration
     振动合成的动力学基础
短句来源
     Study on dynamics of vibrational relief
     振动时效动力学研究
短句来源
     VIBRATIONS OF A PIPE LINE
     输水管的振动
短句来源
     Dynamics of Rational Functions
     有理函数的动力学
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     Vibratory Stress Relief
     振动时效
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  dynamic vibration
The proposed method allows one to obtain an analytical expression for ε∞, Zeff, and the dynamic vibration matrix.
      
Our novel method is to add chaotic dynamic vibration to the measurement or sensor system.
      
Dynamic vibration periods with durations of 1-5 s and displacements of up to 1.5 m are provided.
      
Our experiments demonstrate that optical actuation combined with sensitive optical interferometric measurements can be utilized to perform dynamic vibration analysis of micromechanical components.
      
The general agreement among the analytical, numerical, and experimental mode shapes indicates that a linear combination of basic beam vibration and ring vibration patterns occupy the dynamic vibration modes in the low frequency range.
      
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The fluid dynamics of the hydraulic setworks is of influence on the accuracy. The dynamic vibration of hydraulic system is characteristic of instantaneous velocity, pressure and its oscillation. The piston of a rack cylinder creatsinertia load, being subjected to the difference of pressure at the entrance and exit of the cylinder. On the basis of Newton's second Law, a motion differential equation has been put forward, by which a formula to calculating instantaneous velocity has been obtained. The cylindrical...

The fluid dynamics of the hydraulic setworks is of influence on the accuracy. The dynamic vibration of hydraulic system is characteristic of instantaneous velocity, pressure and its oscillation. The piston of a rack cylinder creatsinertia load, being subjected to the difference of pressure at the entrance and exit of the cylinder. On the basis of Newton's second Law, a motion differential equation has been put forward, by which a formula to calculating instantaneous velocity has been obtained. The cylindrical liquid in cavities on both sides of piston of the rack cylinder considered as two springs possessing some flexibility and a cylindrical liquid springmass vibration modeled,the vibration equation can be got after which is solved and formula calculating instantaneous pressure will be obtained and analysing have proved that the maximum instantaneous velocity, pressure and its oscillation can be reduced by selecting an optimum piston area and fluid velocity, which would improve the operational performances of setworks and setting accuracy.

YY型液压摇尺装置的流体动力学影响摇尺定位精度。液压系统动力学振动程度可用瞬时速度、压力和压力脉动描述其特性。齿条油缸活塞在受进油端与出油端压力差时,产生惯性负载。依据牛顿第二定律列出运动微分方程式,解方程式并求得计算瞬时速度的公式。假设把齿条油缸活塞两侧腔中液柱体看作是两个具有一定柔度的弹簧,并模型化为液柱弹簧-质量的振动模型,可列出振动方程式,解方程式并导出计算瞬时压力公式。分析和计算证明,通过选择最佳活塞面积和液流速度,可以实现降低最大瞬时速度、压力和压力脉动,因而可以改善摇尺装置的工作性能并提高定位精度。

When compressibility of fluid is considered,the parameter matrixes of vibration equation of fluid-structure will be nonsymmetry. After fluid freedoms are reduced to solid by the paper,a non linear characteristic equation that has symmetric matrixes has been obtained; then the approximate value has been solved with matrix perturbation methods.

在考虑流体的可压缩性时,流固耦合结构的动力学振动微分方程的系数矩阵将是不对称的.将流体自由度凝聚在固体位移上之后,获得了一个具有对称系数矩阵的非线性特征方程.然后采用矩阵摄动理论给出了这一特征问题的渐近解.

An important field in vibration engineering is the dynamics of mechanical systems with piecewisesmooth features, such as clearance. constraint, friction and hysteresis. The paper surveys the advances in this field in the past decade,including experimental modeling .numerical analysis of periodic responses,stability of motions,bifurcations and chaos,as well as various applications in industry. At the end,the paper outlines some open problems to be solved in future.

含间隙、约束、摩擦、迟滞等分段光滑力学因素的机械系统动力学是振动工程界广泛重视的研究领域。本文综述了近十年来该领域的研究进展,包括:系统实验建模、周期运动数值解法、运动稳定性、分叉与混沌、以及工程应用。最后,指出若干值得研究的问题。

 
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