مطالعه تجربی، مدلسازی و شناسائی ناحیه تماس بین دیسک و پدهای ترمز خودرو به کمک المان لایه نازک

نوع مقاله : مقاله پژوهشی

نویسندگان

فهیمه نوحی

امین نیکوبین

محمدرضا آشوری

دانشکده مکانیک، دانشگاه سمنان، سمنان، ایران

10.22067/jacsm.2025.91143.1306

چکیده

شناخت ناحیه تماس بین دیسک و پد ترمز کمک شایانی به درک بهتر این سیستم در ترمزگیری و ممانعت از صداهای ناهنجار هنگام ترمز خواهد نمود. در این مقاله هدف بررسی ناحیه تماس بین دیسک و پدها با استفاده از المان لایه نازک است. ابتدا به مدلسازی اجزاء محدود قسمت‌های مختلف سازه پرداخته شده است. سپس ناحیه تماس بین دیسک و پدها با المان لایه نازک مدلسازی شده و در ادامه به کمک مطالعات تجربی، به شناسائی پارامترهای تماس بین دیسک و پدها و بررسی میزان سفتی تماس معادل در اثر افزایش فشار ترمزگیری پرداخته شده است. بررسی-ها نشان می‌دهد با افزایش فشار ترمزگیری، سفتی تماس نیز افزیش یافته و دقت مدل ارائه شده برای مدلسازی ناحیه تماس با استفاده از نتایج تجربی معتبرسازی شده است. نتایج نشان می دهد که مدل ارائه شده برای مدلسازی ناحیه تماس بین دیسک و پدها با خطای اندک در مقایسه با مدل واقعی، مدلی مناسب و به اندازه کافی دقیق است و قابلیت کاربرد در انواع تحلیل های دینامیکی سیستم ترمز را داراست.

کلیدواژه‌ها

دیسک ترمز

سفتی تماس

آنالیز مودال

اتصالات مکانیکی

المان لایه نازک

موضوعات

• ارتعاشات

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عنوان مقاله English

Experimental study, modeling and identification of the contact interface between the disc and brake pads with thin layer element

نویسندگان English

Fahimeh Noohi

Amin Nikoobin

Mohammad Reza Ashory

Faculty of Mechanics, Semnan University, Semnan, Iran

چکیده English

Recognizing the contact area between the disc and pads will help to better understand this system and prevent abnormal sounds during braking. In this paper, the goal is to investigate the contact area between the disc and the pads using a thin layer element. At first, an experimental study and the finite element modeling of different parts of the structure have been considered. In this model, the contact area between the disc and the pads has been modeled with thin layer elements. Then by using experimental results, the contact parameters between the disc and the pads have been identified and the equivalent contact stiffness by increasing the braking pressure has been considered. The results show that the presented model for modeling the contact area between the disc and the brack pads with a small error compared to the real model is a suitable and sufficiently accurate model and can be applied in various dynamic analyses of the brake system.

کلیدواژه‌ها English

Brake disc

Contact stiffness

modal analysis

mechanical joints

thin layer element

مراجع

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