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

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.

Subject Categories:

  • Helicopters
  • Jet and Gas Turbine Engines

Distribution Statement:

APPROVED FOR PUBLIC RELEASE