22-10-2014, 12:16 PM
Abstracts: The design of automotive or industrial power screw jack involves many interrelated parameters. It is necessary to understand this interrelationship and the constraints involved to obtain the optimum design of power screw jack. Thus, Optimization play a key role in field of engineering application. In our work power screw is machine component is to be optimized using the graphical & C++ program software This project is working on the computer. In this project, I am used computer programming Language (C++) for optimization of Mechanical system. It is essential to determine stresses in local areas and other areas using three dimensional, symmetric and axisymmetric models, the preliminary conclusion is that finite element analysis is an extremely powerful tool for design and optimization of power screw. Depending on the desired solutions, there are different methods that offer faster run times and less error. The recommended methods included symmetric models using shell elements and axisymmetric models using solid elements. Design optimization of power screw concerns with the idea to get optimized design dimensions of power screw to minimize weight under given set of constraint by taking pitch & mean diameter of as design variables and screw should be self-locking assume co-efficient of friction between screw and nut is 0.16, screw is safe in buckling, Permissible stress should be less than or equal to yield strength/FOS, screw should be safe in shear failure as design constraints. Further the verification of optimized graphical solution for minimum weight is compared with C++ program.