Optical payload isolation using the Miniature Vibration Isolation System (MVIS-II)

McMickell, M.B.; Kreider, Thorn; Hansen, Eric G.; Davis, Torey; González, M.

doi:10.1117/12.715446

Cited by 41 publications

(22 citation statements)

References 4 publications

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“…For cases with demanding requirements that cannot be met by using passive isolators alone, active isolators can also be implemented for the enhancement of the performance but at the cost of increased complexity. Recently, hybrid isolators that comprise of passive and active isolators (SUITE [2], VISS [20], MVIS [21], and so on) have been developed to acquire the advantages and complement the disadvantages of passive and active vibration isolators.…”

Section: Vibration Isolator Modelingmentioning

confidence: 99%

Development of Integrated Simulation Tool for Jitter Analysis

Lee¹,

Yoon²,

Han³

2012

International Journal of Aeronautical and Space Sciences

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Pointing stability of high precision observation satellites must satisfy the stringent requirements to perform at a designed level. As even a small vibrational disturbance can result in severe degradation of the optical performance, the effects of inorbit vibrational environment on the performance of optical payload must be predicted and analyzed in the design phase in order to ensure that the requirements imposed on the payload are fully met. In this paper, an integrated framework for the evaluation of the performance of optical payloads is developed. The developed simulation tool comprises of the reaction wheel induced disturbance model, state space model of a structure in modal form and Cassegrain reflector model. The performance degradation of the optical system due to jitter is expressed by using modulation transfer function (MTF) and image simulation. Moreover, vibration isolator model is also added to show the effectiveness of using a vibration isolator for the elimination of the effects of jitter in the acquisition of an image.

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Section: Vibration Isolator Modelingmentioning

confidence: 99%

Development of Integrated Simulation Tool for Jitter Analysis

Lee¹,

Yoon²,

Han³

2012

International Journal of Aeronautical and Space Sciences

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“…Brackett et al (2000) presented a vibration isolator, the Miniature Vibration Isolation System (MVIS), which is able to isolate the interference from reaction wheels, solar panel drivers and other components; thus, the high-speed, accurate and stable data passing among the satellites can be guaranteed. Based on the MVIS-I, McMickell et al (2007) presented the MVIS-II system that significantly improves the performance of MVIS-I with better adaptability and system utilization. Cobb et al (1999) proposed the VISS platform with six passive and active vibration isolation struts that enhance the load capacity and the isolation performance at low frequency by using active control.…”

Section: Introductionmentioning

confidence: 99%

Simulation and experiment on the performance of a passive/active micro-vibration isolator

Wang

Chen

Zhang

2016

Journal of Vibration and Control

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In this paper, a passive/active hybrid vibration isolator is proposed to isolate micro-vibration. The passive element of the isolator is a spring-damper constructed with oil-filled corrugated pipes and the active one is an inertial actuator. A numerical model of the isolator is established through theoretical modeling of the stiffness and damping of the spring-damper and the subsystem synthesis method. On the basis of this model, frequency response functions of the disturbance and control channels are computed to describe the characteristics of the isolator. An adaptive control method based on the least mean squares algorithm is adopted to suppress transmission of micro-vibration caused by tonal, chirp or random disturbances. To verify the modeling as well as the isolation performance, tests and experiments are carried out and the results show that the computation of stiffness is effective and the passive element of the isolator has a reasonable amplification factor and a decreasing slope of -40 dB/decade. Furthermore, the active element is able to achieve remarkable attenuation of random and tonal disturbances.

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“…Since the microvibrations are usually multiaxial, vibration isolation for the space telescope should have multiple-degrees-of-freedom characteristics. So far, many multiaxis isolators have been investigated, and the Gough-Stewart isolation system (GSIS) is the most widely used because of the advantages of control proposes [9][10][11][12][13], such as the ultraquiet platform [14], the Miniature Vibration Isolation System [15], and the six-axis vibration isolation [16]. Until now, many researchers have focused on how to design the parameters of the vibration isolator element of the vibration isolation system (VIS) to provide optimal damping.…”

Section: Introductionmentioning

confidence: 99%

“…During the past decades, many methods have been developed to diminish the vibrations from instruments. Vibration isolation is one of the vibration suppression techniques widely applied to solve this problem [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Design of a Vibration Isolation System for the Space Telescope

Yang

et al. 2015

Journal of Guidance, Control, and Dynamics

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Optical payload isolation using the Miniature Vibration Isolation System (MVIS-II)

Cited by 41 publications

References 4 publications

Development of Integrated Simulation Tool for Jitter Analysis

Development of Integrated Simulation Tool for Jitter Analysis

Simulation and experiment on the performance of a passive/active micro-vibration isolator

Design of a Vibration Isolation System for the Space Telescope

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