查询词典 freedom of motion

The complete coupling between the system rigid and flexible degrees of freedom is allowed since the start of the formulation. The Hamilton's principle is utilized in deriving the equations of motion. Both viscous damping and air drag force have been introduced into this model.

该模型考虑了轴承摩擦阻尼和柔性梁结构阻尼以及空气产生的风阻，并采用一致的方法将阻尼和末端质量的影响引入到动力学方程中。

Because of the nonuniqueness in the positional solution, it's not easy to test the performance of the coordinated control system. So the model of NN was built to convert the vector of the length of 6 jars into the vector of the position of the motion deck. It's fast and accurate for the lengthwise direction. The state space system model of the six degree freedom motion simulator was built by the equations of electrodraulic servo mechanism and the multi-body dynamics equation of the six degree freedom motion simulator,the vector of the length of 6 jars was the control variable.

本文结合六自由度运动模拟器的多体动力学方程和电液伺服驱动机构的特性，经简化得出了具有实际意义的六自由度运动模拟器整体系统的状态空间方程式，通过分析该系统的稳定条件和能控性，采用状态反馈对系统的状态方程式进行合理配置，从而建立了以运动模拟器杆长向量为控制变量的运动模拟器整体控制系统，并将该控制系统输出的杆长向量转换为位置向量。

Our commitment is to contribute with our products and services to your everyday freedom of motion.

我们的承诺是让我们的产品和我们的服务为您的出行提供随时的方便。

All the framed structures, plane or space, rigid or hinged, may be analyzed with this method. The principles involved are based on the conception of freedom of motion of structures mentioned in U.

所有杆条结构，不论立体平面，铰接刚接，均可应用本法，所根据之原理，系由苏联建筑力学中自由度之观点出发，而加以扩充。

First of all, the multi-degree-of-freedom equation of motion of the rotor-bearing system, under the action of non-linear oil forces, are derived by Ritz＇ s method according to d＇ Alembert＇ s principle.

轴承系统的不平衡量，给出了一种适合参数识别的非线性油膜力表达式，并引入遗传算法来识别非线性油膜力的动力系数和不平衡的大小和位置。

To investigate the dynamic stability of a two-degree-of-freedom manipulator as a system,differential equations of motion for this system were established on the basis of the Lagrange equation,and perturbed differential equations with period coefficients were derived for the period motion of this system by applying the perturbance theory.

为了研究两自由度机械手系统的动力学稳定性，基于拉格朗日方程给出了它的运动微分方程，并用扰动理论确定系统周期运动具有周期系数的扰动微分方程；根据F loquet理论对该系统扰动微分方程的平衡点的稳定性进行了分析，并用数值方法研究了平衡点失稳后的倍周期分岔过程。

Secondly, the paper gives out the procedure of the three-dimensional dredge boat modeling, which uses the VR tool-MultiGen. Establishing the DOF of the VR model and the VR model motion relations are depicted in the third chapter.

其次，介绍了利用三维建模工具MultiGen建立三维疏浚船模型的方法，其中涉及虚拟三维模型的建立、自由度(DOF，Degree Of Freedom)的设定、运动关系的数学描述等内容。

Synthesizing the degrees of freedom of both rotor and helicopter body, and involving time derivatives of flap motion coefficient and induced velocity model derived from vortex theory, the governing equations of helicopter maneuvering flight are derived properly, with combination of kinematic equations and dynamic equations.

集旋翼和机体之自由度并计及挥舞运动系数对时间的导数和涡流理论的诱速模型，把运动学方程和动力学方程组合起来，从而导出了机动飞行的控制方程。

In this paper the equations of the stability and shear, flexural vibration of the straight bars with varying cross-section and the equations of motion of one degree of freedom systems with varying parameters are written as a unified self-adjoint differential equation of the second order eq.

本文将变截面杆的稳定与剪切、弯曲振动方程，以及具有变参数的单自由度体系的振动方程等均化为统一的二阶自共轭微分方程：并对，且的情形，将二阶自共轭方程化为贝塞尔方程。

The high order linear space state model has 25 state variables, including six degrees of freedom of rigid fuselage, flap motion of main and tail rotor, non uniform dynamic inflow at rotor plane.

以某型直升机为例，对线性模型与非线性模型的时域动态响应，及 2 5状态高阶线性模型和传统 6自由度 9状态模型的特征值进行了比较，验证了建模方法的可靠性和精度

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了