Optimal Design of Parallel Mechanism with Elastic Chains for Wave Energy Conversion
The wave energy conversion device based on elastic branched chain parallel mechanism can collect multi-directional irregular wave energy and realize the conversion to mechanical energy and electrical energy.The structural parameter design of the device is one of the main factors affecting the wave energy conversion efficiency.Under the action of wave force,the spatial posi-tion and pose of the moving platform are constantly changing.By establishing the inverse kinematics model of the mechanism,the expansion deformation of the spring branch chain under the given position and pose of the moving platform is obtained.According to the influence of mechanism geometric parameters and branch spring physical parameters on the elastic potential energy in the process of Spring Branch deformation,the single parameter experimental design and sensitivity analysis are carried out respec-tively,and the relevant structural parameters such as branch spring coefficient,hinge distribution angle and distribution circle ra-dius of dynamic and static platform,and the height between platforms are established as design variables.Furthermore,taking the maximum deformation energy of the elastic chain as the optimization objective,the multi design variable optimization math-ematical model is built based on ADAMS/Insight,and the optimal design parameters of the mechanism are obtained by solving.The research results are of great significance for improving the design of wave energy conversion device and improving the effi-ciency of wave energy conversion.
NETL
NSTL
万方数据
维普
