| 1. | Explains the steps required to design a four bar linkage
解释设计一个四连杆机构所需的步骤。 |
| 2. | Tracking analysis and application of gemel four rods mechanical motion based on autolisp
的四连杆机构运动轨迹分析及应用 |
| 3. | Application of opengl in the motion simulation of four - bar mechanism of powered mining support
在煤矿液压支架四连杆机构运动仿真中的应用 |
| 4. | There are too many curves in pattern of bar linkage curves , how to find the right curve is the key for applications of pattern . . a method based on support vector machine to recognize bar linkage curve is presented in this paper
摘要四连杆机构的轨迹图谱相当繁浩，如何从数千条轨迹曲线中找到与要求实现的轨迹相同或相似的图形是限制轨迹图谱应用的关键之一。 |
| 5. | In the structure and mechanism reliability analysis , the monte - carlo method , the importance sampling method and the extended importance sampling method which is presented in this paper are applied into the t russ structure , the box structure , the shaft structure and the flexible four - linkage mechanism
无人战斗机机体可靠性分析是对无人战斗机上的结构、机构(桁架结构、盒式结构、转轴结构以及四连杆机构等这些最基本的结构、机构型式)进行可靠性分析。分析时采用蒙特卡罗法、重要抽样法以及本文提出的扩展重要抽样法。 |
| 6. | In this thesis , by means of the lagrange function , the finite element dynamic equations of the beam element are deduced . then all the element dynamic equations are assembled into the system dynamic equation through using the kineto - elastodynamics theory . the dissipation force derived from joint damping is applied as excitation force of the linkage system
本文的主要内容如下：以平面弹性四连杆机构为研究对象，运用ked ( kineto - elastodynamics )方法推导出了连杆机构的系统动力学方程；在此基础上，将运动副阻尼等效为粘性阻尼，导出了包含运动副等效粘性阻尼系数的系统动力学方程。 |
| 7. | The optimum balancing of a four bar linkage with elastic links is studied , in which the control torque of redundant drives is taken as the design variable , and the shaking force and shaking moment of the mechanism are taken as the objective . the numerical simulation shows validity of the method
针对一平面弹性四连杆机构，以其震动力和震动力矩的加权和为目标函数，以冗余驱动力矩为变量，对附加冗余驱动的弹性机构进行最优平衡，其仿真结果表明该方法是有效的。 |
| 8. | Based on above distributed simulation software of multibody system dynamics , three examples of distributed sensibility analysis , double pendulum system , planar four - bar mechanical system and slider - crank system , are numerically dealt with , the results of which indicates that the methods raised in this paper are correct
基于所完成的系统运动学分布式仿真软件，实现了双摆机构、平面四连杆机构、曲柄滑块机构的分布式灵敏度分析算例，验证了本文方法的正确性。 |
| 9. | Comparing the fitted expression with the established theory expression of the angular velocity , the equivalent viscous damping coefficient is gained . the closed form algorithm of the state space method is employed to solve the system dynamic equation with time - varying coefficients . the dynamic problem of a linkage mechanism with four joints is taken as example to show that the presented models and methods are correct and practicable
引入求解线性微分方程的状态空间法，并对其求解时变系统运动微分方程的具体步骤进行了推导；在此基础上将实测获得的运动副等效粘性阻尼系数代入系统动力学方程，求解后获得了考虑运动副阻尼的平面弹性四连杆机构的仿真结果；结果表明运动副的阻尼在一定程度上对振动具有抑制作用。 |
| 10. | The mechanism is divided into finite elements and researched by ked method . then kinematic differential equations are established for each element and the general kinematic differential equations are built through assembling all the elements . a closed numerical method based on the mode superposition principle is employed to solve the equations
将四连杆机构划分为多个有限单元，建立其单元运动微分方程和系统运动微分方程，运用实振型叠加法的闭式算法求出机构在一个运动周期中各个广义坐标方向的弹性位移，同时求出机构不同位置时各构件上动应力分布情况、机构前四阶振型变化情况。 |
