کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
783379 1465314 2016 20 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Periodically forced system with symmetric motion limiting constraints: Dynamic characteristics and equivalent electronic circuit realization
ترجمه فارسی عنوان
سیستم اجباری دوره ای با محدودیت محدود کننده حرکت متقارن: ویژگی های پویا و تحقق مدار الکترونیکی معادل
کلمات کلیدی
محدودیت محدودیت حرکت دینامیک، جریان، پیاده سازی فیزیکی
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
چکیده انگلیسی


• Dynamics of a non-smooth system is studied by double-parameter simulation analysis.
• The incidence relation between dynamics and constraint parameters of the system is studied.
• An electronic circuit is designed for physical implementation of dynamics of the system.
• A good agreement between the numerical and experimental results is confirmed.

A two-degree-of-freedom periodically-forced system with symmetric motion limiting constraints is considered in this paper. The incidence relation between dynamics and constraint parameters (clearance and constraint stiffness) is studied and some novel results are obtained by double-parameter simulation analysis. The fundamental group of impact motions having the excitation period and differing by the number of impacts is given special consideration for analyzing low frequency vibration characteristics of the system. Dynamics of the system are studied with emphasis on the mutual transition characteristics between neighboring regions of fundamental impact motions. An electronic circuit is designed for physical implementation of dynamics of the periodically-forced system with symmetric constraints. The non-linear terms of the system are replaced by using an absolute-value function and can be fully implemented with simple electronic elements (resistors and operational amplifiers). The electronic circuit is realized and studied. The oscilloscope outputs of electrical waveforms of various non-smooth oscillations, generated by the circuit itself, are experimentally observed. A good agreement among the numerical results of the mechanical model, the electronic design simulation of the circuit and the real oscilloscope outputs of hardware implementation is confirmed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Non-Linear Mechanics - Volume 81, May 2016, Pages 283–302
نویسندگان
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