Model HH-53 Helicopter, Durability and Damage Tolerance Assessment Report Submittal

reportActive / Technical Report | Accession Number: ADA129255 | Open PDF

Abstract:

Progress continued this month on the NASTRAN model of the forward cabin. Some program slippage was experienced in both the mass distribution and updating cabin stiffness. The transmission and sponson geometry definition was reassigned to the CAD group and new commitments from the weights group were obtained. The program should be back on schedule by April 15. Screening of sensitive dynamic components has also been started. Overall expenditures are about 18 of budget at this point. Although light, the charges are expected to rise as the NASTRAN model of the aft fuselage is generated. This will have to be a complete new model unlike the forward cabin which is a modified CH-53E model.

Author(s):
No Author(s) Identified
Author Organization(s):
UNITED TECHNOLOGIES CORP STRATFORD CT SIKORSKY AIRCRAFT DIV
Descriptive Note:
Monthly status letter.
Pagination:
0006

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
SEL-7867
Contract/Grant Number(s):
F09603-81-G-1808
Monitor Series:
USAF
 Subject Terms
Joint Capability Areas:
JCA_5.3_Planning; JCA_5_Command and Control
Communities of Interest:
Air Platforms
Descriptor(s):
*HELICOPTERS, *DAMAGE ASSESSMENT, *MODELS, *CONFIGURATIONS, STRESS ANALYSIS, COST ANALYSIS, DYNAMICS, STRUCTURAL ANALYSIS, CRACKING(FRACTURING), HELICOPTER ROTORS, FRACTURE(MECHANICS), FLIGHT SIMULATORS, TOLERANCES(MECHANICS), FLIGHT LOADS, SYSTEMS ENGINEERING, MANEUVERABILITY, AIRCRAFT CABINS, STRESS STRAIN RELATIONS, LOAD DISTRIBUTION
Field(s)/Group(s):
Helicopters, Test Facilities, Equipment and Methods
Keyword(s):
NASTRAN MODEL, DURABILITY
Report Date:
1983 May 13