عنوان	Design modification of shifting blocker of vehicle gearbox for strength improvement
نوع پژوهش	مقاله‌ی منتشر شده در نشریه
کلیدواژه‌ها	Strength improvement, Gear shifting blocker, Fork, Finite element analysis, Abaqus software
چکیده	In this paper, the strength improvement of the gear shifting blocker is investigated for the Peugeot gearbox and design modifications of the part are proposed based on the customer feedback regarding its failures. A hardened steel sheet is used inside the plastic part of the shifting blocker to increase the strength. In this research, two proposed correction designs are presented to decrease the stress of plastic part by modifying on the steel sheet geometry. ABAQUS software is used for modeling the gear shifting blocker and analyzing the stress distribution of the parts by finite element method. In order to validate the simulation results and choose the proper design to enhance the strength of blocker part, some experimental tests are performed on the tension-compression test bench. By comparison of the results, from both tests and simulations, it can be observed that the first and second modification designs improve the stresses of blocker plastic part by 18% and 45%, respectively.
پژوهشگران	عباس سلطانی (نفر دوم)، میلاد آریان فرد (نفر اول)