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gyroscopic effect research papers



Linear quadratic regulation of a rotating shaft being subject to gyroscopic effect
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Abstract:A linear quadratic regulator is designed for a rotor system on the basis of a finite element model. The rotor is subject to gyroscopic effect and is actively supported by means of piezoelectric actuators installed at one of its two bearings. As a result of the first aspect,

Gyroscopic effect on surface acoustic waves in anisotropic solid media
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Abstract The propagation of Rayleigh waves over an elastic anisotropic half-space rotating at a constant angular rate about a symmetry axis is analyzed using a recent approch based on the first intergrals of motion, including Coriolis and centrifugal forces. The secular

Gyroscopic effect of small scale tilt up horizontal axis wind turbine
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The main aim of wind turbine technology is converting wind energy to electricity. To assure a proper operation the wind turbine has to adapt to any wind conditions, which is in the first order to adjust itself according to the wind direction. It also needs to protect itself from the

Modal analysis design to exposure gyroscopic effect in rotating machinery using experimental and analytical/computational techniques
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Abstract: The modal analysis design is to establish a system identification methodology using the analytical/computational techniques and update the model using experimental techniques already established for passive structures but to active rotating structures,

Catastrophic Failure due to Gyroscopic Effect of Small Scale Tilt up Horizontal Axis Wind Turbines
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The main aim of wind turbine technology is converting wind energy to electricity. To assure a proper operation the wind turbine has to adapt to any wind conditions, which is in the first order to adjust itself according to the wind direction. It also needs to protect itself from the

Effect of small dissipative and gyroscopic forces on the stability of non conservative systems
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We analyze the effect of small forces proportional to the generalized velocity vector on the stability of a linear autonomous mechanical system with non conservative positional forces. It is known that arbitrarily small dissipation generally destabilizes a non conservative system

LQG Control of an Active Magnetic Bearing with a Special Method to consider theGyroscopic Effect
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Abstract:It could be very difficult to find an acceptable feedback path for coupled differential equations like a FIVE degree of freedom (DOF) AMB system. This paper describes a linear quadratic Gaussian (LQG) approach on this problem. Due to the time variant gyroscopic

Dynamic Analysis of Nonlinear Symmetric Rotor with Gyroscopic Effect
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Abstract: Dynamic analysis of symmetric rotor with gyroscopic effect is performed in this study. First, equations of motion have been derived using Lagrange equation and then solved analytically by Homotopy Perturbation Method (HPM) and numerically appling

STABILITY OF A DISCRETE CONTINUOUS ROTOR WITH FOLLOWER LOAD ANDGYROSCOPIC EFFECT
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Abstract: The paper is concerned with dynamic analysis of stability and transverse vibration of a high speed shaft with a massive disc on it's end subject to concentrated follower force. Attention is paid to the influence of the gyroscopic effect on the stability domain and near-

About Signorini's principle of the gyroscopic effect
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Abstract: In this work we show that Signorini's principle of the gyroscopic effect can be expressed by means of a vectorial equation of the type whose solutions lets us

Gyroscopic effect in the bidirectional femtosecond erbium-doped fiber ring laser
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Abstract We have demonstrated for the first time to the best of our knowledge the gyroscopic effect in the rotating erbiumdoped bidirectional ultrashort pulse fiber ring laser. Detected angular velocities ranged from 0.1 to 90 deg/sec at the equivalent gyroscope sensitivity of

Modal analysis and testing of rotating machines for predictive maintenance: effect ofgyroscopic forces
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Abstract Through the year's preventive maintenance, which is based on vibration measurements has grown in importance to reduce costs. However in industry nowadays there is still a great need for good analytical prediction models that describe the dynamics In the Jeffcott model, the rotor was assumed to be a point mass, and consequently, no allowance was taken for its moments of inertia. This assumption, while greatly simplifying the analysis, precludes the possibility of studying phenomena that considerably influence the

Gyroscopic effect and temperature on surface acoustic waves propagating in a thermo-piezoelectric half space
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This study presents a generalization of the works without neglecting any component of the displacement and stress. We analyze the effect of Coriolis and centrifugal forces, comparatively, about the three symmetry axis on the dispersion of the Rayleigh

FEM of the drilling machine-tool including the gyroscopic effect
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Abstract: In this paper, a new theoretical approach for dynamical study in drilling operation is proposed. We use a finites element of beam design to develop a dynamical model for drilling machine-tool. This model takes in to account of the gyroscopic effect and its

Whirling of a Rotor on Isotropic Shaft considering Gyroscopic Effect and Asymmetric Bearing Stiffness
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Abstract In a variety of moving machineries ranging from tiny micro-motors to giant turbo aircraft, rotors are principal elements. Early investigators had noticed the effects of imbalance and increasing speeds on the vibrations as the rotors operated near resonance

A cardiac motion compensation device based on gyroscopic effect
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Abstract: The difficulties encountered in preventing the cardiac motion is a hindrance to the development of recent less invasive techniques in the field of beating heart surgery. Some solutions were developed already in order to solve this problem, inducing specific and

ANALISYS OF A FLOATING WIND TURBINE SUBJECTED TO GYROSCOPIC MOMENT EFFECTAT INCLINATION
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Abstract. Nowadays there is a growing demand for the production of electricity by wind turbines, which should be installed mainly in flat areas with reduced numbers of barriers that block the continuity of wind flow. The sea, especially the regions far from the cost, satisfies

Case Study of Tuned Mass Damper and Modeling of Gyroscopic Damper for CorrespondingEffect
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Abstract As published in the previous paper regarding the concept of gyroscopic vibration damper, this paper continuation and validation for such hypothesis. By analyzing a case study of a tuned mass damper and calculating the energy and momentum ranges of


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