Vibration isolation system
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United States of America Patent
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-
Feb 21, 1995
Issued Date -
N/A
app pub date -
Jan 11, 1993
filing date -
Aug 16, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An improved vibration isolation system utilizes at least one pair of structures connected vertically in series with each other and with a base structure and preloaded vertically, with a payload platform disposed between and connected to the structures. Each structure has a negative-stiffness effect in response to vertical compressive load for reducing its horizontal stiffness. The system passively accommodates changes in payload weight or weight distribution by providing a prescribed change in horizontal-motion isolator stiffness with change in weight load. The invention also provides an improved means of retrofitting existing vibration-isolating suspension systems to reduce their stiffness and increase their damping.
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