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Mechanical strain isolator mountCertain devices such as optical instruments must preserve their alignmental integrity while being subjected to mechanical strain. A mechanical strain isolator mount is provided to preserve the alignmental integrity of an alignment sensitive instrument. An alignment sensitive instrument is mounted on a rectangular base. Flexural legs are connected at their proximal ends to the rectangular base. Flexural legs are also spaced parallel to the sides. Mounting pads are connected to the legs at the distal end and the mechanical strain isolator mount is attached to the substrate by means of threaded bolts. When a mounting pad and its respective leg is subjected to lateral strain in either the X or Y direction via the substrate, the respective leg relieves the strain by bending in the direction of the strain. An axial strain on a mounting pad in the Z direction is relieved by a rotational motion of the legs in the direction of the strain. When the substrate is stress free, the flexural legs return to their original condition and thus preserve the original alignment integrity of the alignment sensitive instrument.
Document ID
19910012228
Acquisition Source
Legacy CDMS
Document Type
Other - Patent
Authors
James, Gordon E.
(TRW Space Technology Labs. Redondo Beach, CA., United States)
Date Acquired
August 14, 2013
Publication Date
March 5, 1991
Subject Category
Mechanical Engineering
Report/Patent Number
Patent Number: NASA-CASE-LAR-13580-1
Patent Application Number: US-PATENT-APPL-SN-441673
Patent Number: US-PATENT-4,997,158
Accession Number
91N21541
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
NASA-CASE-LAR-13580-1|US-PATENT-4,997,158
Patent Application
US-PATENT-APPL-SN-441673
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