Optimization design of hydraulic scrap iron&steel grasping crane based on virtual prototype

In order to solve the problem of consumed power due to the unreasonableness of structure size dimension on the basis of the experience design, this paper proposes a method by applying virtual prototype technique based on ADAMS, a virtual prototype model of such fixed hydraulic scrap iron&steel grasping crane based on virtual is developed, and the accuracy of the model can be proved by comparing the theoretical locus of mathematical models with simulation ones; To enhance the mechanism´s operational performance and reduce the movement of the driving power, set the locus range under technical parameters and the installation size of hydraulic cylinders as optimize constraints. The size and hinge position of the luffing mechanism are respectively optimized with OPTDES-SQP algorithm. The results show that the research method is practical, the luffing mechanism achieves the purpose of optimization, and the forces of hydraulic cylinders have decreased obviously.