Accession Number:
AD0861517
Title:
CWCD-1000/1010 Sonic Analyzer with CH-47A/B Helicopter Capability
Descriptive Note:
Final rept.
Corporate Author:
CURTISS-WRIGHT CORP CALDWELL NJ AEROSPACE EQUIPMENT DIV
Personal Author(s):
Report Date:
1969-07-01
Pagination or Media Count:
172.0
Abstract:
The purpose of the work encompassed in the report was 1 to fabricate an automated diagnostic sonic analyzer, 2 to design and fabricate a CH-47AB helicopter plug-in module with both T55 engine and CH-47AB helicopter power train components capability, and 3 to design and fabricate an auxiliary microphone switch box. The methods employed in achieving this work consisted of 1 analyzing mechanical data to determine the frequencies of the rotating components, 2 performing a microphone survey and locking frequency investigation, 3 analyzing the acoustical data to develop spectral familiarity and to establish initial analyzer programming and system compatibility, and 4 conducting a field application program utilizing the automated sonic analyzer to correlate analyzer indications with the mechanical condition of the rotating components and to establish analyzer limits.
Descriptors:
Subject Categories:
- Helicopters
- Jet and Gas Turbine Engines