Abstract- In this study, first the six axle depressed center wagon modeled with computer then its suspension optimized for transporting of high weight transformers in vertical direction on straight rails . For this purpose, We simulate dynamics of depressed center wagon in two ways,one by ADAMS / Rail software and by newton-euler analysis Dynamics method. Non-linear equations of motion and kinematical constraints have been solved in time domain. Then we define parameters that are influence on dynamics behavior of suspension element of the six axle depressed center wagon. In addition, optimization function defined base on Non Operating Shock Specification (NOSS) factor that is factor of Vulnerability when carry transformer. And in the end, suspension of this wagon optimized for Transporting of Transformers by perform many simulations on variation interval of choice parameters. Results show that stiffness of suspension element must change a little to dynamics behavior of depressed center wagon is improved.

Keywords: optimization, ADAMS/Rail, ADAMS/Rail, Depressed Center Wagon, Suspension, Transporting of Transformers

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