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Accession Number:
AD0880948
Title:
Flight Test Results of a DAVI Isolated Platform
Corporate Author:
KAMAN AEROSPACE CORP BLOOMFIELD CT
Report Date:
1970-11-01
Abstract:
The report contains the results of a flight test evaluation of the Dynamic Antiresonant Vibration Isolator DAVI. In this program, three series of tests were conducted for four different weight configurations of a DAVI isolated platform. The first series of tests evaluated the unidirectional DAVI, the second series of tests evaluated the two-dimensional DAVI, and the third series of tests evaluated the three-dimensional DAVI. The test results showed that the unidirectional and the two-dimensional DAVI isolated platforms did not achieve the expected reduction in vibration and, in some conditions, reduction was very poor. However, the reduction of vibration obtained on the three-dimensional DAVI isolated platform was excellent. A comparison of results obtained on the three- dimensional isolated platform and a conventionally isolated platform shows that the three-dimensional DAVI isolated platform had the lower vibration level and was less sensitive to changes in isolated weight or to changes in helicopter rotor speed excitation frequency.
Descriptive Note:
Final rept.
Supplementary Note:
DOI: 10.21236/AD0880948
Pages:
0203
Distribution Statement:
Approved for public release; distribution is unlimited.
Contract Number:
DAAJ02-67-C-0060
File Size:
11.91MB
