Corrective opposing vibrations reduce Earthquake damage. Algorithm for controlling reactions of buildings and other structures to Earthquake initiates counterpulses when incoming shock pulses exceed threshold level. By using "go/no-go" criterion rather than continuously adjusting response to every input excitation no matter how small, control system needs less computation effort than comparable closed-loop systems.
Active Pulse Suppression of Structural Vibrations
NASA Tech Briefs ; 8 , 4
1985-04-01
Miscellaneous
No indication
English
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