Vibration isolation and suppression system for precision payloads in space

Cobb, Richard; Sullivan, Jeanne M.; Das, Alok Kumar; Davis, L. Porter; Hyde, Tupper; Davis, Torey; Rahman, Z.; Spanos, John T.

doi:10.1088/0964-1726/8/6/309

Cited by 147 publications

(51 citation statements)

References 10 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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“…A Stewart platform is commonly used in obtaining acceleration, but it can also generate an anti acceleration if the base platform is moving (Graf & Dilmann, 1997); application of Stewart platforms compensate acceleration of a moving robot. However, only vibrations of relatively minimal amplitude are considered (Graf & Dilmann, 1997), (Geng & Haynes, 1993), (Cobb et al, 1999), (Vaillon et al, 1999). A greater amplitude is considered in vibration control simulation of a Stewart-Gough platform on flexible suspension (Cheng et al, 2003), where the platform compensates the movements of a radio telescope mounted at a suspending structure.…”

Section: Testbed Descriptionmentioning

confidence: 99%

Robotic Strategies to Assist Pilots in Landing and Takeoff of Helicopters on Ships and Offshore

Campos¹,

Quintero²,

Saltarén³

et al. 2010

Cutting Edge Robotics 2010

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“…A Stewart platform is commonly used in obtaining acceleration, but it can also generate an anti acceleration if the base platform is moving [18]; application of Stewart platforms compensate acceleration of a moving robot. However, only vibrations of relatively minimal amplitude are considered [18], [19], [20], [21]. A greater amplitude is considered in vibration control simulation of a Stewart-Gough platform on flexible suspension [22], where the platform compensates the movements of a radio telescope mounted at a suspending structure.…”

Section: Testbed Descriptionmentioning

confidence: 99%

An Active helideck testbed for floating structures based on a Stewart-Gough platform

Campos

Quintero

Saltarén

et al. 2008

2008 IEEE/RSJ International Conference on Intelligent Robots and Systems

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Abstract-A parallel robot testbed based on Stewart-Gough platform called Active-helideck is designed, developed and tested as a helicopter floating helideck. The objective of this testbed is to show the advantages of helicopters that use an active helideck upon landing on and taking off from ships or from offshore structures. Active-helideck compensates simulated movements of a ship at sea. The main goal of this study is to maintain the robot's end effector (helideck) in a quasi-static position in accordance to an absolute inertial frame. Compensation is carried out through the coordinate action of its six prismatic actuators in function of an inertial measurement unit. Moreover, the simulation of the sea movement is done by a parallel robot called ship platform with three degrees of freedom. The ship platform is built with a vertical oscillation along the z axis, i.e. heave, and rotates on remaining axes, i.e. roll and pitch. Active helideck is able to compensate simulated movements by considering the ship as an inertial frame as observed in the experiment.

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Vibration isolation and suppression system for precision payloads in space

Cited by 147 publications

References 10 publications

Development of Integrated Simulation Tool for Jitter Analysis

Development of Integrated Simulation Tool for Jitter Analysis

Robotic Strategies to Assist Pilots in Landing and Takeoff of Helicopters on Ships and Offshore

An Active helideck testbed for floating structures based on a Stewart-Gough platform

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