کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6954275 1451828 2018 15 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Experimental estimation of transmissibility matrices for industrial multi-axis vibration isolation systems
ترجمه فارسی عنوان
برآورد تجربی ماتریس های انتقال برای سیستم های جداسازی لرزش چند محوری
کلمات کلیدی
جداسازی لرزش فعال، کنترل لرزش، شناسایی سیستم غیر پارامتری، مکاترونیک با دقت بالا،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر پردازش سیگنال
چکیده انگلیسی
Vibration isolation is essential for industrial high-precision systems to suppress external disturbances. The aim of this paper is to develop a general identification approach to estimate the frequency response function (FRF) of the transmissibility matrix, which is a key performance indicator for vibration isolation systems. The major challenge lies in obtaining a good signal-to-noise ratio in view of a large system weight. A non-parametric system identification method is proposed that combines floor and shaker excitations. Furthermore, a method is presented to analyze the input power spectrum of the floor excitations, both in terms of magnitude and direction. In turn, the input design of the shaker excitation signals is investigated to obtain sufficient excitation power in all directions with minimum experiment cost. The proposed methods are shown to provide an accurate FRF of the transmissibility matrix in three relevant directions on an industrial active vibration isolation system over a large frequency range. This demonstrates that, despite their heavy weight, industrial vibration isolation systems can be accurately identified using this approach.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Mechanical Systems and Signal Processing - Volume 107, July 2018, Pages 469-483
نویسندگان
, , , ,