نوع مقاله: مقاله پژوهشی

نویسندگان

1 دانشجوی دکتری مهندسی مکانیک - دانشگاه فردوسی مشهد

2 دانشیار دانشکده مهندسی مکانیک دانشگاه فردوسی مشهد

چکیده

دسته‌موتور به عنوان عامل اتصال موتور به بدنه، علاوه بر نگه داشتن موتور و متعلقات آن، وظیفه‌ی کنترل و جذب ارتعاشات حاصل از موتور به بدنه و بالعکس یعنی ارتعاشات محیطی بدنه به سیستم انتقال قدرت را بر عهده دارد. بررسی الزامات طراحی و گزینش دسته‌موتورهای شناورهای دریایی در سالیان گذشته یکی از موضوعات مورد مطالعه در صنایع دریایی محسوب می‌شود. از این منظر بررسی الگوهای متنوع طراحی و بازبینی مدل‌های ارائه شده برای استفاده در مسئله‌ی طراحی دسته‌موتور، ضروری به نظر می‌رسد. مطالعه حاضر بر اساس بررسی پژوهش‌های حوزه طراحی، الگوی مناسبی را جهت طراحی و گزینش دسته‌موتور در چهار گام اصلی طراحی اولیه، تبیین قالب طراحی و گزینش، طراحی جزئیات و نهایتا ارزیابی عملکرد برای اولین بار به صورت نظام‌مند پیشنهاد می-دهد. بعلاوه با بکارگیری روش‌های انتخاب بهینه، شناخت پارامترهای بحرانی و وزن‌دهی پارامترها، نوعی از طراحی گزینشی پیشنهاد می‎شود. در ادامه نیز به اجرای فرآیند طراحی و گزینش دسته‌موتور برای یک موتور 6 سیلندر دریایی درون نصب با توان 200 اسب بخار و بررسی تحلیل‌های عملکردی بر روی آن اقدام می‌گردد. بر اساس نتایج بدست آمده از تحلیل عملکرد این نمونه، دسته‌موتور نهایی حاصل از این طراحی در شرایط بحرانی، با ضریب اطمینان 2.1 پاسخگوی تحلیل استحکام است و با فاصله مناسب نسبت به فرکانس تحریک (50 هرتز) پاسخ‌گوی تحلیل فرکانسی نیز خواهد بود. در نهایت نتایج مدلسازی دینامیکی دسته‌موتور مورد بررسی قرار گرفته‌اند.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

A survey on design methodology and performance analysis of a marine engine mount

نویسندگان [English]

  • A Mehrkish 1
  • A.A Akbari 2

1 Mechanical engineering department, Ferdowsi University of Mashhad, Iran.

2 Ferdowsi University of Mashhad

چکیده [English]

The main responsibility of an engine mount as a component which attaches the engine to chassis is control and absorption of different resources of vibration. Design process of marine engine mounts is one of main issues in the recent years in marine industries. Hence, a deep study in diverse design methodologies and performance analysis would be necessary to suggest an appropriate process for engine mount design. This study based on researches on design methods, suggest design and selection algorithm for marine engine mounts in four steps: primarily design, conceptual design, detail design, and finally performance assessment. Afterwards, the suggested process will imply for an internal marine engine mount with 200 hp. Based on achieved results, the final designed engine mount for this case in critical situation will have safety factor of 2.1 in static analysis and it also have a desired distance from excited frequency in frequency analysis. Finally, dynamic modeling results for this engine mount will be presented based on designed GUI by research team.

کلیدواژه‌ها [English]

  • design methodology
  • Marine engine mount
  • Performance analysis

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