منابع مشابه
Rotor Balancing with Considering Measurement Errors*
Abstract When influence coefficient (IC) method is used in rotor balancing, it is possible that serious errors could be resulted in unbalance determinations due to the contamination of measurements and IC matrix being ill-posed. In this study, the availability of least squares algorithm (LSA) and Tikhonov regularization (TR) is studied by error estimations of unbalance determination with consid...
متن کاملUsing a Symmetric Rotor as a Tool for Balancing
In the Humanoid Leagues balancing during walking and running is still the biggest challenge for most of the teams. We present here some work in which a dynamic walker is stabilised by using a fast heavy rotor, a gyro. The dynamics of a symmetric, fast rotating gyro is different from that of a non-rotating solid body, e.g. in the case of small disturbances it tends to keep the axes the same. Res...
متن کاملExperience in Rotor Balancing of Large Commercial Jet Engines
Experienceouerthepasttenyearsinvibration and cabin noise control of new airplane jemgine systems Is summarized. why the newer systems required more stigent control is discussed. he transitionfrom single plane balance methods, in cmnnwn use on older systems, to conventional 2.plane influence coefFcient @.C.J methods, and then to optimized 2-p&e LC. methods is described. Examples of residual unba...
متن کاملExtended Influence Coefficient Method for Rotor Active Balancing during Acceleration
Imbalance-induced vibration of rotating machineries is an important factor limiting the performance and fatigue life of a rotor system. Particularly, the severe resonant vibration of a rotor when it passes through its critical speeds could damage the rotor system. To avoid this peak vibration, this paper presents an active balancing method to offset the imbalance of the rotor system during acce...
متن کاملField Balancing and Harmonic Vibration Suppression in Rigid AMB-Rotor Systems with Rotor Imbalances and Sensor Runout
Harmonic vibrations of high-speed rotors in momentum exchange devices are primary disturbances for attitude control of spacecraft. Active magnetic bearings (AMBs), offering the ability to control the AMB-rotor dynamic behaviors, are preferred in high-precision and micro-vibration applications, such as high-solution Earth observation satellites. However, undesirable harmonic displacements, curre...
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ژورنال
عنوان ژورنال: Shock and Vibration
سال: 1998
ISSN: 1070-9622,1875-9203
DOI: 10.1155/1998/648518