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D9L推土机推土板侧倾机构是一个多杆件复杂的空间机构,在运动学上各杆相互关联,不能分解为几个简单运动部份,因此位移分析较难。通常用求解非线性方程组的方法解这类机构,但计算费时,在运动极限位置附近解的收敛性差,校核计算的正确性较难。本文提出一种新的解法,从构件相对位置容易确定的观点出发,选择推土板为参考系,逐步求得整个推土板侧倾机构中各构件的位置。这个方法计算省时,运动概念明确,计算结果验证方便,可应用于其他复杂的空间连杆机构位移分析。
D9L Bulldozer Bulldozer Roller Mechanism is a complex space mechanism with multiple rods. In kinematics, the rods are related to each other and cannot be decomposed into several simple motion parts. Therefore, displacement analysis is difficult. Usually this method is used to solve the nonlinear equations, but the calculation is time-consuming, the convergence of the solution near the limit position of the motion is poor, and the correctness of the calibration calculation is difficult. This paper proposes a new solution method. From the point of view that the relative positions of the components are easy to determine, the bulldozing plate is selected as the reference frame, and the position of each component in the entire bulldozing plate roll mechanism is gradually obtained. This method saves time, has a clear concept of motion, and is easy to verify for calculation results. It can be applied to displacement analysis of other complicated space link mechanisms.