مرکز منطقه ای اطلاع رساني علوم و فناوري - Determining Limits of the Bolts Tightening in Chassis Components Mounting of the Automobiles

Abstract :

The aim of this research is to determine and to verify theoretically and experimentally a calculation method for bringing up the torque values and their lower higher limits as well as forming the tolerances, those to be applied on chassis component joints during mechanical assembly process.In this study, a calculation method is generated and simply presented in an Excel format for all joint types by scrutinizing the forces acting on the joints, effects of these forces and the critical joint segments to be considered on calculations. Making use of this calculation method, the torque values and limits of several example joints of a vehicle are calculated and the results are examined on a vehicle applied to the long way road test. Considering the results obtained, all improvements have been performed to eliminate the possibility of arising problems on the vehicle.Consequently, it is provided to advance quickly in design process by means of torque values which were determined by originating previous vehicles and verified with necessary road tests, and thus all costs related to road tests and manufacturing process were decreased considerably.