Vibration Treatment in Cantilever Beam with Smart Material

  • سال انتشار: 1397
  • محل انتشار: مجله بین المللی تعامل سازه و خاک، دوره: 2، شماره: 1
  • کد COI اختصاصی: JR_SSI-2-1_006
  • زبان مقاله: انگلیسی
  • تعداد مشاهده: 458
دانلود فایل این مقاله

نویسندگان

Hamed Mohammadi

Dept of Mechanical and Materials Engineering, Faculty of Engineering and Built Environment, University Kebangsaan Malaysia, Kuala Lumpur, Malaysia

چکیده

In this study the motion equation of cantilever beam with piezoelectric patches as sensor and actuator is presented, the induced voltage in sensor has been calculated, this voltage, is the cause of strain in the beam. With convert the governing equation of beam to state space model to investigate response of vibration in cantilever beam with two piezoelectric patches. In this study 2 control methods have been used; velocity feedback and Linear-quadratic regulator LQR , to decrease vibration amplitude in cantilever beam with two piezoelectric patches as sensor and actuator. We investigate the effect of different amount of controller coefficient and the weighing matrixes on beam displacement and induced voltage in actuator. We present the calculation of optimize place for sensor and optimize length for actuator on cantilever beam. In this paper we present special method to find tip displacement in cantilever beam which is under dynamic load. We did experimental test on cantilever beams to find displacement on tip of the beam on time. We use ANN to predict tip displacement on time, so we repeat our experimental test for different beam dimension and loads, we used of test results as input data for ANN, now we have a network which can predict tip displacement of cantilever beam at any time during beam vibration. The accuracy of our network prediction is up to 98%

کلیدواژه ها

Piezoelectric، Sensor، Actuator، Cantilever beam

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.