کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
565433 1451859 2016 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Partial pole placement by feedback control with inaccessible degrees of freedom
ترجمه فارسی عنوان
قرار دادن قطب جزئی توسط کنترل بازخورد با مقادیر غیر قابل دسترس از آزادی
کلمات کلیدی
کنترل لرزش فعال قرار دادن قطب جزئی، درجه دسترسی غیرمستقیم، کنترل دو ورودی روش دریافت
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر پردازش سیگنال
چکیده انگلیسی


• Active vibration control by partial pole placement with inaccessible degrees of freedom.
• Double input controller with position, velocity and acceleration feedback.
• Linear formulation using measured receptances – typically from a modal test.
• Lower bound on the maximum number of inaccessible degrees of freedom.

Classical pole-placement theory requires that every degree of freedom shall be accessible to sensing but in physical systems there are often obstructions that make sensing at certain degrees of freedom impractical. In the classical formulation of the pole placement problem the input vector which determines the actuator gains is given and the pole placement problem is linear. If the input vector is not known and it is desired to find the gains of actuators and the gains of the measured state subject to some constraints then the problem becomes nonlinear since the unknown parameters multiply each other. It is shown that this nonlinear active vibration control problem is rendered linear by the application of a new double input control methodology implemented in conjunction with a receptance-based scheme where full pole placement is achieved while some chosen degrees of freedom are free from both actuation and sensing. A lower bound on the maximum number of degrees of freedom inaccessible to both actuation and sensing is established. A numerical example is provided to demonstrate the working of the method using the new double-input approach.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Mechanical Systems and Signal Processing - Volumes 70–71, March 2016, Pages 334–344
نویسندگان
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