Microvibration suppression of space truss structures using viscoelastic dampers with design parameter optimization

This paper addresses the microvibration suppression problem for space truss structures by using viscoelastic dampers (VEDs). Based on the principle of virtual work, a finite element dynamic model of a spacecraft consisting of a reaction wheels assembly (RWA), a truss support structure, VEDs, and an optic camera is built. The angular displacement response function of the structure at the camera optic axis excited by the RWA disturbance forces is obtained. Then an optimization model is built in which an improved average pointing stability metric is adopted as the objective function, and the placement, number, and design parameters of VEDs are considered as optimal variables. To solve the presented discrete–continuous optimization problem, a new hybrid algorithm that has combined the advantage of the differential evolution (DE) algorithm and the simulated annealing (SA) algorithm is presented. Simulation results demonstrate that the present method can find the optimal solution faster than DE. Finally, the disturbance forces data of the RWA are measured by experiment, and were used as the system input to simulate the pointing stability of the optic camera in three cases: without VEDs, with VEDs (initial parameters), and with VEDs (optimal parameters). The results indicate that VEDs with optimized parameters can significantly improve the pointing stability of the optic camera.

[1]  Charles E. Bell,et al.  SIM astrometric demostration at the 150 picometer level using the mam testbed , 2003, 2003 IEEE Aerospace Conference Proceedings (Cat. No.03TH8652).

[2]  Wei-Yong Zhou,et al.  Design and test of a soft suspension system for cantilevered momentum wheel assembly , 2013 .

[3]  G.W. Neat,et al.  Micro-precision interferometer pointing control system , 1995, Proceedings of International Conference on Control Applications.

[4]  Sanjay S. Joshi.  The need for a systems perspective in control theory and practice , 1999 .

[5]  Samuel W. Sirlin,et al.  New definitions of pointing stability - ac and dc effects. [constant and time-dependent pointing error effects on image sensor performance , 1992 .

[6]  Xingjian Jing,et al.  Recent advances in micro-vibration isolation , 2015 .

[7]  Benoit Petitjean,et al.  Active isolation in space truss structures: from concept to implementation , 1999 .

[8]  J. Yu,et al.  Space Interferometry Mission spacecraft pointing error budgets , 2002 .

[9]  M. Milman,et al.  Space Interferometry Mission instrument model and astrometric performance validation , 2004, IEEE Transactions on Aerospace and Electronic Systems.

[10]  Dongxu Li,et al.  Design and analysis of an intelligent vibration isolation platform for reaction/momentum wheel assemblies , 2012 .

[11]  Zahidul H. Rahman,et al.  Vibration isolation and suppression system for precision payloads in space , 1999 .

[12]  Andy J. Keane,et al.  Active vibration control (AVC) of a satellite boom structure using optimally positioned stacked piezoelectric actuators , 2006 .

[13]  Allen J. Bronowicki,et al.  Vibration Isolator for Large Space Telescopes , 2004 .

[14]  Robert Fuentes,et al.  On-Orbit Active Vibration Isolation: The Satellite Ultraquiet Isolation Technologies Experiment (SUITE) , 2003 .

[15]  Ahmed Abu Hanieh,et al.  Multi-axis vibration isolation using different active techniques of frequency reduction , 2011 .

[16]  R. Goullioud,et al.  SIM astrometric demonstration at 24 picometers on the MAM testbed , 2004, 2004 IEEE Aerospace Conference Proceedings (IEEE Cat. No.04TH8720).

[17]  Dongxu Li,et al.  Experimental research on a vibration isolation platform for momentum wheel assembly , 2013 .

[18]  Andy J. Keane,et al.  Passive vibration control of a satellite boom structure by geometric optimization using genetic algorithm , 2003 .

[19]  Boris J. Lurie,et al.  Vibration attenuation approach for spaceborne optical interferometers , 1998, IEEE Trans. Control. Syst. Technol..

[20]  Dongxu Li,et al.  Studies on vibration isolation for a multiple flywheel system in variable configurations , 2015 .

[21]  John E. McInroy,et al.  Disturbance attenuation in precise hexapod pointing using positive force feedback , 2006 .