Stress Analysis in Fixturing of Flexible Workpieces during Riveting Process
- سال انتشار: 1396
- محل انتشار: اولین کنفرانس بینالمللی مکانیک مواد و تجهیزات پیشرفته
- کد COI اختصاصی: CMME01_022
- زبان مقاله: انگلیسی
- تعداد مشاهده: 413
نویسندگان
Assistant Professor, Faculty of Mechanical Engineering, Shahrood University of Technology, Shahrood, Iran
چکیده
Fixtures are mainly constructed from locating and clamping systems. Locating system applies kinematic constraints to workpiece in order to locate it at the deterministic location (form closure) while the clamping system plays the role of force applying agent to keep the preserved position and orientation (force closure). Stress values and distribution are considered as one of the important parameters for determination of the appropriate loci of the workpiece. In the present study, FE analysis has been conducted using Abaqus software for determination of stresses on the flexible workpiece fabricated from Al7075-t6 alloy while it is fixtured on its deterministic location. For this purpose, specific locating and clamping systems have been designed for fixturing of sheet metal workpiece with considering the forces applied by the riveting process. The air intake module of an airplane has been selected as the case study because of its needs for high inner and outer profiles accuracy. The selected workpiece was first cut into two parts whose fixturing systems were specially designed for the riveting process. The FEA analysis was conducted on the workpiece using different locating and clamping schemes and forces and the appropriate fixturing plan were selected based on the stress distribution and values. Finally, the suitability of the final locating and clamping plans and their corresponding forces were evaluated and confirmed by the fixturing principles.کلیدواژه ها
Aerospace industry, Aluminum 7075-t6, Jig and fixture, Riveting, Stress distributionمقالات مرتبط جدید
اطلاعات بیشتر در مورد COI
COI مخفف عبارت CIVILICA Object Identifier به معنی شناسه سیویلیکا برای اسناد است. COI کدی است که مطابق محل انتشار، به مقالات کنفرانسها و ژورنالهای داخل کشور به هنگام نمایه سازی بر روی پایگاه استنادی سیویلیکا اختصاص می یابد.
کد COI به مفهوم کد ملی اسناد نمایه شده در سیویلیکا است و کدی یکتا و ثابت است و به همین دلیل همواره قابلیت استناد و پیگیری دارد.