مهندسی مکانیک مدرس

مهندسی مکانیک مدرس

تحلیل تنش و امکان‌سنجی ساخت آب‌بند مکانیکی (رینگ لامینار)

نوع مقاله : پژوهشی کیفی

نویسندگان
گروه مکانیک بیوسیستم، دانشکده مهندسی و فناوری کشاورزی، دانشگاه تهران، تهران، ایران
چکیده
با توجه به نیاز بالای شرکت‌های فولادسازی، ضرورت بومی‌سازی آب‌بندهای مکانیکی لامینار از طرف مجتمع فولاد مبارکه اصفهان مطرح شد. در این تحقیق ابتدا اقدام به بررسی شرایط کاری و استخراج نیروهای وارده بر آب‌بند شد. بررسی‌ها نشان دادند که نیروهای وارده، شبه‌استاتیک بوده و مقادیر فشار ۲۲۵=PH (پاسکال) و ۲۲۰=PGr (بار) و گشتاور ۷/۳۰۶=TS (نیوتون بر متر) هستند. نتایج آزمایش کشش نشان داد که استحکام نهایی برای آب‌بند و تسمه به‌ترتیب ۳/۶۲۰ و ۱/۵۹۴مگاپاسکال هستند. نتایج حاصل از تحلیل استاتیک روی آب‌بند لامینار و آب‌بند ساخته‌شده نشان داد که بیشترین تنش براساس تئوری وون‌میسز به‌ترتیب ۱۰۸×۳۹/۱ (پاسکال) و ۱۰۸×۲/۳ (پاسکال) و ضریب اطمینان نیز برای هرکدام به‌ترتیب ۸۰۸/۲ و ۳۳۸/۱ است.
کلیدواژه‌ها

موضوعات


عنوان مقاله English

Stress Analysis and Feasibility of Fabrication of Laminar Ring

نویسندگان English

M. Ghauori
M. Rashvand
Biosystem Mechanical Engineering Department, Agriculture Engineering & Technology Faculty, University of Tehran, Iran
چکیده English

Due to the high demand of steel factories, the necessity of localization of mechanical laminar was introduced from Mobarakeh Steel Company of Isfahan. In this research, we first studied the working conditions and the extraction of the forces applied to the waterworks. The investigations showed that the forces are quasi-static and the pressure values are PH=225Pa and PGr=220Bar, and the torque TS=306.07N.m. The results of the tensile test showed that the final strength for the waterworks and belt was 620.3 and 594.1 MPa, respectively. In order to make the desired waterworks, the belt was prepared in 6 steps from the mold and formed a circular shape. Using the matrix pitch matrix, the staircase was created on the waterworks. The results of static analysis on the mechanical laminar and domestic laminar showed that the maximum stresses, based on Von Mises theory, were 1.39×108 Pa and 3.2×108 and the confidence coefficient for each was 2.808 and 1.338, respectively.

کلیدواژه‌ها English

Laminar Ring
Rolling
stainless steel
Stress Analysis
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