Study of Whole-spacecraft Vibration Isolators Based on Reliability Method

Abstract The traditional payload attaching fitting (PAF) does not provide any vibration isolation, because of its large stiffness. Whole-spacecraft vibration isolation is a direct and effective approach to assure the successful launching and orbit insertion of a spacecraft. In view of the problems of stiffness and vibration isolation design, for which the designers care most, the study of whole-spacecraft vibration isolator (WSVI) consists of two parts. In the first part, the stiffness feature of the WSVI is studied with reliability analysis and experimental data. In the second part, the problems induced by stiffness feature are discussed. The simulated and experimental data show that the transmissibility, which is coupled with stiffness, can be reduced by attaching the vibration isolator between the spacecraft and the launch vehicle.

[1]  Huang Wen-hu.  Performance Analysis of the New Whole-Spacecraft Isolator , 2007 .

[2]  Gangbing Song,et al.  VIBRATION SUPPRESSION OF FLEXIBLE SPACECRAFT DURING ATTITUDE CONTROL , 2001 .

[3]  L. Porter Davis,et al.  Need for and benefits of launch vibration isolation , 1997, Smart Structures.

[4]  Paul S. Wilke,et al.  Whole-spacecraft shock isolation system , 2002, SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring.

[5]  B. Wen,et al.  Reliability sensitivity for rotor-stator systems with rubbing , 2003 .

[6]  D. Stewart,et al.  A Platform with Six Degrees of Freedom , 1965 .

[7]  Richard G. Cobb,et al.  Survey of state-of-the-art vibration isolation research and technology for space applications , 2003, SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring.

[8]  Gareth R. Thomas,et al.  Launch vehicle payload adapter design with vibration isolation features , 2005, SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring.

[9]  D. Stewart,et al.  A Platform with Six Degree of Freedom , 1965 .

[10]  Huang Wen-hu,et al.  Study of liquid viscosity dampers in octo-strut platform for whole-spacecraft vibration isolation , 2006 .

[11]  Noboru Kikuchi,et al.  Analysis and design of passive band-stop filter-type vibration isolators for low-frequency applications , 2006 .

[12]  Gregory S. Agnes,et al.  Adaptive control for payload launch vibration isolation , 2001, SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring.

[13]  E. C. Levy.  Complex-curve fitting , 1959, IRE Transactions on Automatic Control.

[14]  Paul S. Wilke,et al.  Whole-spacecraft vibration isolation for broadband attenuation , 2000, 2000 IEEE Aerospace Conference. Proceedings (Cat. No.00TH8484).

[15]  Bangchun Wen,et al.  Robust Reliability Design of Banjo Flange With Arbitrary Distribution Parameters , 2005 .

[16]  André Preumont,et al.  A six-axis single-stage active vibration isolator based on Stewart platform , 2005 .