2015

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Browsing 2015 by Author "Nagina Fatima"

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    Design optimization of vehicle suspension with quarter car model
    (UMT Lahore, 2015) Nagina Fatima
    Optimization includes the determination of optimum point of an objective function, supply system and test functions. Here we do the comparative study of three optimization methods, hooke-jeeves method, nelder-mead method and multidirectional search method and these methods have been applied to the solution of the fully constrained optimization problem. There are many derivative free methods which could be used for solving different constrained optimization models. These methods will also be implemented to different models, test functions and then compare the results. The focus of this research project is to execute and evaluate these optimization methods and those methods which do not need gradient information. In order to discuss the solution of the completely constrained optimization problems, numerous constraint handling methods are evaluated, including the penalty function level. Here we also discuss a model which is called quarter vehicle model with different types of constrains which involve the comparative study of three optimization method, named as hooke-jeeves, nelder-mead and multidirectional search method for design optimizing vehicle suspensions constructed on quarter vehicle model with different types of constrains. It was resulted from the comparative study that hooke-jeeves search method is more reliable than multidirectional and nelder-mead search methods. The optimum results of quarter car model were obtained by using matlab programming which demonstrated the effectiveness and applicability of the methods.