Dynamic simulation of stick–slip motion of a flexible solar array

The Advanced Earth Observation Satellite (ADEOS), a remote sensing satellite, was developed by the National Space Development Agency of Japan and launched in 1996. ADEOS had a large flexible solar array, which was made of a membrane-like structure of 23 m in length. During the checkout and subsequent phases of in-orbit operations, it was discovered that the attitude control system was experiencing internal disturbances that had not been anticipated. An intensive investigation based on the down-linked flight data revealed that mechanical vibrations was caused by a stick-slip motion at the tension control mechanism (TCM) of the solar array. The scope of this paper is to present an analytical approach to the stick-slip of the TCM by means of spacecraft attitude responses. The mathematical model utilized assumes that the spacecraft was composed of a main rigid body and flexible appendages, which consist of a number of rigid plates connected by torsional hinges. Key parameters of the hinges are determined by applying the equations of vibration of a uniform cantilever beam with tangible physical parameters. This mathematical model has been evaluated using the ADEOS flight data and ground-based test data. It is concluded that the technical approach and mathematical model utilized have correctly represented actual spacecraft motions.

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Dynamics of stick–slip motion, Whillans Ice Stream, Antarctica

Earth and Planetary Science Letters ◽

10.1016/j.epsl.2011.02.052 ◽

2011 ◽

Vol 305 (3-4) ◽

pp. 283-289 ◽

Cited By ~ 41

Author(s):

J. Paul Winberry ◽

Sridhar Anandakrishnan ◽

Douglas A. Wiens ◽

Richard B. Alley ◽

Knut Christianson

Keyword(s):

Stick Slip ◽

Ice Stream ◽

Whillans Ice Stream ◽

Stick Slip Motion ◽

Slip Motion

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On the Dynamic Behavior of Machine Tool Slideway : 2nd Report, Characteristics of Kinetic Friction in "Stick Slip" Motion

Bulletin of JSME ◽

10.1299/jsme1958.13.180 ◽

1970 ◽

Vol 13 (55) ◽

pp. 180-188 ◽

Cited By ~ 2

Author(s):

Shinobu KATO ◽

Katsumi YAMAGUCHI ◽

Tsuneo MATSUMAYASHI

Keyword(s):

Machine Tool ◽

Dynamic Behavior ◽

Kinetic Friction ◽

Stick Slip ◽

Stick Slip Motion ◽

Slip Motion

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Basal ice motion and deformation at the ice-sheet margin, West Greenland

Annals of Glaciology ◽

10.3189/172756405781813113 ◽

2005 ◽

Vol 42 ◽

pp. 67-70 ◽

Cited By ~ 5

Author(s):

David M. Chandler ◽

Richard I. Waller ◽

William G. Adam

Keyword(s):

Deformation Mode ◽

Time Intervals ◽

Stick Slip ◽

Active Deformation ◽

West Greenland ◽

Shear Structures ◽

Basal Ice ◽

Ice Velocity ◽

Stick Slip Motion ◽

Slip Motion

AbstractMeasurements of basal ice deformation at the margin of Russell Glacier, West Greenland, have provided an opportunity to gain more insight into basal processes occurring near the margin. The basal ice layer comprises a debris-rich, heterogeneous stratified facies, overlain by a comparatively debris-poor dispersed facies. Ice velocities were obtained from anchors placed in both ice facies, at three sites under 5–15 m ice depth. Mean velocities ranged from 20 to 43 m a–1, and velocity gradients indicate high shear strain rates within the basal ice. Stick–slip motion and diurnal variations were observed during measurements at short (1–5 min) time intervals. Vertical gradients in horizontal ice velocity indicate two modes of deformation: (1) viscous deformation within the stratified ice facies, and (2) shear at the interface between the two basal ice facies. Deformation mode 1 may contribute to the folding and shear structures observed in the stratified facies. Deformation mode 2 may generate the stick–slip motion and be associated with the formation of debris bands. Active deformation close to the margin suggests that structures observed within the basal ice are only partially representative of processes occurring near the bed in areas away from the glacier margin.

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Monitoring Stick-Slip Motion of Machine Tool Slides using Feed Motor Current

10.1109/imc.1990.687390 ◽

2005 ◽

Author(s):

J.L. Stein ◽

Wei Wu

Keyword(s):

Machine Tool ◽

Stick Slip ◽

Motor Current ◽

Stick Slip Motion ◽

Slip Motion

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Experimental Exploration of Schallamach Waves and Self-Excitation in a Belt-Drive System

Volume 6: 14th International Conference on Multibody Systems, Nonlinear Dynamics, and Control ◽

10.1115/detc2018-85894 ◽

2018 ◽

Author(s):

Yingdan Wu ◽

Michael Varenberg ◽

Michael J. Leamy

Keyword(s):

Angular Velocity ◽

Dynamic Behavior ◽

Oscillation Amplitude ◽

Operating Conditions ◽

Drive System ◽

Belt Drive ◽

Stick Slip ◽

Stick Slip Motion ◽

System Inertia ◽

Slip Motion

We study the dynamic behavior of a belt-drive system to explore the effect of operating conditions and system moment of inertia on the generation of waves of detachment (i.e., Schallamach waves) at the belt-pulley interface. A self-excitation phenomenon is reported in which frictional fluctuations serve as harmonic forcing of the pulley, leading to angular velocity oscillations which grow in time. This behavior depends strongly on operating conditions (torque transmitted and pulley speed) and system inertia, and differs between the driver and driven pulleys. A larger net torque applied to the pulley generally yields more remarkable stick-slip oscillations with higher amplitude and lower frequency. Higher driving speeds accelerate the occurrence of stick-slip motion, but have little influence on the oscillation amplitude. Contrary to our expectations, the introduction of flywheels to increase system inertia amplified the frictional disturbances, and hence the pulley oscillations. This does, however, suggest a way of facilitating their study, which may be useful in follow-on research.

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