铲运机工作机构优化设计

Optimization on the Design of Work-Mechanism of Scooper Loaders

摘要: 本文提出了应用非线性规划方法设计铲运机工作机构。首先分析了反转六杆机构工作过程中的运动几何关系,推导了运动方程和力学关系方程。确立了以机构平动性能和转斗油缸最大出力为最小的双目标函数,从而建立了约束非线性优化设计数学模型。
作者用所建立的数学模型,用SUMT优化方法,在高速电子计算机上,对国产ZLD-40型铲运机工作机构进行了实例计算,验证了数学模型及程序的正确性和可靠性,并取得了满意的优化解。
计算结果表明:该机构选择双目标函数进行优化设计,较全面地提高了机构的设计质量和工作效益,这是常规设计所难以实现的。

Abstract: In this paper, the method of nonlinear programming is used to design the Work-mechanism of scooper loaders. The mathematical model contains nine design variables, thirty-four constraint equations and one comprehensive objective function consisting of the parallelism of scoop upward motion and the rotating force of hydraulic cylinder for running scoop.
The above mathematical model had been applied for computation to the domestic ZLD-40 type scooper loader by means of SUMT and interesting re-sutls were obtained.
The computed resutls confirms the crrectness of the above mathematical model. The design quality and operation effectiveness of the work-mechanism pf the scooper loader could be improved by this method.