Parametric Design And Analysis Of Cylindrical Helical Springs

Spring is one of the important mechanical parts,as an elastic component, it is widelyused in all kinds of mechanical and electrical devices. With the advancing of mechanicaltechnology, new types of springs have been emerging, and the requirements towardssprings have been becoming severed. The traditional spring design theory can no longermeet the demands of the spring industry that is developing in a increasingly intensecompetition. With the progress of computer technology, Many modern design methodssuch as CAD, optimal design technology and finite element analysis technology areapplied widely in the pratical design of springs.In this paper, cylindrical helical springs is taken as the research object.Based onMATLAB and Pro/toolkit and APDL, the optimal design and parameterized modeling andFEM analysis of the springs are implemented.First of all, the theory of optimal design was introduced and the optimal designmethod of the cylindrical helical spring was analyzed in this paper, established themathematical model of optimum design. An optimization design system of the cylindricalcoil spring was created with the optimization toolbox of MATLAB and GUIDE, whichcan optimize the spring design parameters efficiently.Secondly, the method of procedure development technology to carry on secondarydevelopment in Pro/E using Pro/Toolkit was studied in this paper. By applying theparameterized modeling method and program technology to aims to create springmodels. The parameters driver was developed under Visual C++ developmentenvironment to realize parametric modeling of the spring so as to improve the springmodeling efficiency.Finally, the secondary development technique of ANSYS was analyzed. By the usageof ANSYS internal command and APDL language as well as parametric technology, thefinite element model of the springs was established, and the parameter FEM analysis ofsprings was relized. This made it to be convenient and efficient to establish the springsFEM models and perform FEM analysis of springs . The study of this paper realized optimal design, parametric modeling and analysis ofsprings, it is important and meaningful to the application and popularity of modern designmethods in the aspect of the spring design and analysis.