Optimal design of damped vibration absorber for vibration suppression of elevated storage tank via Imperialist Competitive Algorithm

  • سال انتشار: 1397
  • محل انتشار: سومین کنفرانس بین المللی مهندسی مکانیک و هوافضا
  • کد COI اختصاصی: MECHAERO03_209
  • زبان مقاله: انگلیسی
  • تعداد مشاهده: 489
دانلود فایل این مقاله

نویسندگان

Peyman khandar shahabad

Department of Mechanical Engineering, East Azarbaijan Science and Research Branch, Islamic Azad University,Tabriz, Iran.

Amir Abdollah Ghaderi

Department of Mechanical Engineering, Tabriz Branch, Islamic Azad University, Tabriz, Iran.

چکیده

In this study, a damped vibration absorber with aim of reducing the vibration of a single column elevated storage metal tank was designed. The elevated storage tank was assumed as an Euler-Bernoulli cantilever beam and a single degree of freedom model (SDOF) of the beam was extracted. With regarding the elastic behavior of the structure, the values of mass and stiffness were determined at the free end of the beam. The storage tank contains a liquid which is assumed as a homogeneous ideal liquid with a small wave amplitude. Fluid turbulence within the tank which is caused by the vibration of the system is ignored. Applied loading, which was caused by factors such as wind or earthquake, was modeled harmonically. Tank vibration will happen due to the applied forces in the first mode. Mass of the absorber was assumed to be constant as a percentage of mass of the primary system. Then optimal values of absorber s stiffness and damping were determined by using imperialist competitive algorithm optimization method and H2 optimization criterion. The accuracy of the obtained results was confirmed.

کلیدواژه ها

Vibration absorber, Optimization, Imperialist competitive algorithm

مقالات 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.