A Structural Weight Estimation Program (SWEEP) for Aircraft. Volume 1 - Executive Summary

Abstract

Three computer programs were written with the objective of predicting the structural weight of aircraft through analytical methods. The first program, the structural weight estimation program (SWEEP), is a completely integrated program including routines for airloads, loads, spectra, skin temperatures, material properties, flutter stiffness requirements, fatigue life, structural sizing, and for weight estimation of each of the major aircraft structural components. The program produces first-order weight estimates and indicates trends when parameters are varied. Fighters, bombers, and cargo aircraft can be analyzed by the program. The program operates within 100,000 octal units on the Control Data Corporation 6600 computer. Two stand-alone programs operating within 100,000 octal units were also developed to provide optional data sources for SWEEP. These include the flexible airloads program to assess the effects of flexibility on lifting surface airloads, and the flutter optimization program to optimize the stiffness distribution required for lifting surface flutter prevention. This volume, Volume I, summarizes the program and its capabilities.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1974
Accession Number
ADA002850

Entities

People

  • L. Ascani

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Aerodynamic Configurations
  • Aerospace Craft
  • Air Force
  • Aircrafts
  • Airframes
  • Airplanes
  • Cargo Aircraft
  • Composite Materials
  • Computer Programs
  • Data Processing
  • Engineering
  • Fuselages
  • Geometry
  • Landing Gear
  • Spars
  • Structural Components
  • Transport Aircraft

Readers

  • Aerodynamics/Aeronautics.
  • Computer Science.
  • Structural Health Monitoring of Composite Structures.