Analytical Support in Aircraft Certification

Abstract

The high cost of designing a new airplane enforced engineers to look for new cheaper methods. One method for the cost reduction is wide use of computer simulations in designing and certification process. From many different methods of analysis, FEM appears to be the best, but in spite of all improvements, present level of fidelity is still too low to completely eliminate experiments in the designing process. This explains why Building Block Approach is still the main method for designing, but certification process, which is only verification one, is more suitable for use computer methods only. Results of static tests and FEM analysis for two airplanes designed in the Institute of Aviation will be shown in this presentation. To allow for comprehensive insight of the problem of fidelity of analysis, two different airplanes were selected. First one is the metal jet trainer I-22 Iryda designed according to the AP970 regulations and the second one- four places all-composite aircraft designed and certified according to the FAR.23 regulations.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Mar 01, 2003
Accession Number
ADP014168

Entities

People

  • Jakub Kaczkowski
  • Wojciech Potkanski

Organizations

  • Institute of Aviation, Warsaw

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Accuracy
  • Aircraft Equipment
  • Aircraft Wings
  • Aircrafts
  • Airframes
  • Composite Aircraft
  • Composite Materials
  • Composite Structures
  • Construction
  • Fuselages
  • Horizontal Stabilizers
  • Laminates
  • Materials
  • Plastic Properties
  • Simulations
  • Static Tests
  • Stress Concentration

Readers

  • Aerospace Engineering
  • Computational Modeling and Simulation
  • Software Engineering.