Optimal design of a snubbed vibration isolator for vibration sensitive electrooptic payload

Alexander Veprik; Shlomo Djerassy; Vladimir Babitsky

doi:10.1117/12.777931

17 April 2008 Optimal design of a snubbed vibration isolator for vibration sensitive electrooptic payload

Alexander Veprik, Shlomo Djerassy, Vladimir Babitsky

Proceedings Volume 6940, Infrared Technology and Applications XXXIV; 69402B (2008) https://doi.org/10.1117/12.777931
Event: SPIE Defense and Security Symposium, 2008, Orlando, Florida, United States

Abstract

Low frequency vibration isolation of airborne gyrostabilised electrooptic payloads is an ultimate and life proven solution aimed at improving their imagery performance primarily during relatively quiet cruise flight. This portion of airborne mission is characterised by rather moderate environmental conditions, under which the vibration mounts operate mostly in a linear working range within the predefined working rattle space thus delivering their best performance. Compliant snubbers are the indispensable emergency components in such vibration protection arrangements coming into play during exposure to environmental extremes typical for the relatively short periods of the airborne mission such as take-off, landing, weapon application, etc. Their primarily objective is to safely protect the above soft vibration mounts from bottoming and disintegration without developing ruining impulsive accelerations compromising the integrity of the payload frame and the internal fragile components mounted upon it. The optimal approach to designing such a snubbed vibration isolator delivering a fail-safe environment for both payload frame and critical components subject to the tight constraints imposed on size, weight and price does not seem to exist. It is the author's intention to devise such an optimal design approach and to demonstrate its application to low frequency vibration mounted electro-optic payload comprising the vibration sensitive Integrated Dewar-Detector-Cooler Assembly.

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Alexander Veprik, Shlomo Djerassy, and Vladimir Babitsky "Optimal design of a snubbed vibration isolator for vibration sensitive electrooptic payload", Proc. SPIE 6940, Infrared Technology and Applications XXXIV, 69402B (17 April 2008); https://doi.org/10.1117/12.777931

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KEYWORDS

Staring arrays

Vibration isolation

Electro optics

Infrared sensors

Sensors

Weapons

Numerical simulations

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