Journal ArticleDOI
A reduced rotor model using modified SEREP approach for vibration control of rotors
TLDR
In this paper, a reduced model for a rotor-shaft system, generally a non-self-adjoint system, was obtained by retaining modes with higher participation factor and also choosing conveniently within the retained modes, a number of predecided measurable states.About:
This article is published in Mechanical Systems and Signal Processing.The article was published on 2012-01-01. It has received 8 citations till now. The article focuses on the topics: Discretization & Active vibration control.read more
Citations
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Journal ArticleDOI
Estimation of single plane unbalance parameters of a rotor-bearing system using Kalman filtering based force estimation technique
TL;DR: In this paper, a model-based method to estimate single plane unbalance parameters (amplitude and phase angle) in a rotor using Kalman filter and recursive least square based input force estimation technique is proposed.
Journal ArticleDOI
Optimal vibration control of rotors with an open edge crack using an electromagnetic actuator
TL;DR: In this article, the authors proposed a vibrational control of a cracked rotor with an electro-magnetic unit (EMU) that can prevent the occurrence of disastrous failures, especially in cracked rotors.
Journal ArticleDOI
Optimal control of reduced-order finite element models of rotor-bearing-support systems
TL;DR: In this paper, an optimal control is applied to rotor-bearing-support systems in which the rotor finite element models have relatively large degrees of freedom (DOF), and the quality of model reduction is evaluated by comparing some first natural frequencies, modal damping ratios, critical speeds, and response of both the full system and the reduced system.
Journal ArticleDOI
Dynamic study of viscoelastic rotor: Reduction of higher order model using different techniques
S. Chandraker,H. Roy +1 more
TL;DR: In this paper, two different reduction techniques have been used: (i) Iterative Improved Reduction System (IRS) and (ii) Balanced Realization System (BRS).
Proceedings ArticleDOI
A Balanced IIRS Model for Investigating the Dynamics of Damped Rotor Bearing System
S. Chandraker,H. Roy +1 more
TL;DR: In this paper, the application of the balanced iterative improved reduction model techniques to complex rotor-bearing systems is investigated, and it is demonstrated that, Iterative Improved Reduction System (IIRS) improves the matrix reductions by ensuring that the transformation matrix for each reduction is optimized.
References
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Journal ArticleDOI
Reduction of stiffness and mass matrices
TL;DR: In this article, the authors proposed a method for reducing the size of the stiffness matrix by eliminating coordinates at which no forces are applied, based on the procedure used in Ref. 1 for stiffness matrix reduction.
Journal ArticleDOI
The dynamics of rotor-bearing systems using finite elements.
H. D. Nelson,J. M. McVaugh +1 more
Journal ArticleDOI
Model reduction using dynamic and iterated IRS techniques
TL;DR: The IRS method is extended by obtaining the equivalent transformation based on dynamic rather than static reduction, and an iterative algorithm, based on the IRS method, is described, which provides a reduced model which reproduces a subset of the modal model of the full system.
Book
Model Order Reduction Techniques with Applications in Finite Element Analysis
TL;DR: Academics working in research on structural dynamics, MEMS, vibration, finite elements and other computational methods in mechanical, aerospace and structural engineering will find Model Order Reduction Techniques of great interest while it is also an excellent resource for researchers working on commercial finite-element-related software such as ANSYS and Nastran.