JOURNAL BROWSE
Search
Advanced SearchSearch Tips
A Study of the Lug Fracture Improvement for Composite Leaf Spring Landing Gear
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
A Study of the Lug Fracture Improvement for Composite Leaf Spring Landing Gear
Shim, Daisung; Jang, Deakhyeon; Park, Chahwan; Kim, Jounghun;
  PDF(new window)
 Abstract
This is a study for the improvement of the fractured lug structure that connects the landing gear to the fuselage of the aircraft using the composite leaf spring landing gear. The lug surface was analyzed to find out the cause of fracture. The lug was destroyed by the crack initiation and propagation under the repeated stresses. The frictional wears of the lug structure were proceeded and that affected adversely to the crack. Also, the square protrusion of the lug has a weak shape to bring about stress concentration. The design changes were conducted and the test was performed to verify changed design results.
 Keywords
Composite Leaf Spring;Lug;Fractured Surfaces;Wear;Design Change;
 Language
Korean
 Cited by
1.
Manipulation of impact feedbacks by using Novel mechanical-adaptor mechanism for UAV undercarriage applications, Aerospace Science and Technology, 2017, 70, 233  crossref(new windwow)
 References
1.
Michael C.Y.NIU, "Airframe Structure Design," Lockheed Aeronautical Systems Company, pp. 464-460, 1988.

2.
Norman S. Currey, "Aircraft Landing Gear Design: Principles and Practices," Lockheed Aeronautical Systems Company, pp. 85-88, 1988.

3.
Isaac M. Daniel and Ori Ishai, "Engineering Mechanics of Composite Materials," Oxford University Press, pp. 4-6, 1994.

4.
Mel M. Schwartz, "Composite Materials Handbook," MeGraw-Hill, pp. 7.54-7.60, 1992.

5.
D. M. Kim, M. K. Hur and Kee-Bhum Lee, "A Study on th Shock Absorbing for Composite Leaf Spring Landing Gear," The Korean Society for Aeronautical & Space Sciences, Vol. 24, No. 2, pp. 85-94, 1996.

6.
S. W. Choi, S. M. An, "Dynamic Characteristics Analysis for Composite Landing Gear Strut," The Korean Society for Aeronautical & Space Sciences, The Autumm Symposium, pp. 429-432, 2003.

7.
AMS 5629, "Steel, Corrosion-Resistant, Bars, Wire, Forgings, and Extrusions 13Cr-8.0Ni-2.2Mo-1.1Al".