Topic
Landing gear
About: Landing gear is a research topic. Over the lifetime, 3403 publications have been published within this topic receiving 25370 citations. The topic is also known as: landing gear & gear.
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Patent•
06 Oct 1945
TL;DR: In this article, a landing gear including a jointed strut arranged in such a manner as to act both as a brace strut for keeping the landing gear in place and as a support for the aircraft's landing gear.
Abstract: The present invention relates to retractable landing gears for aircrafts. In the applicants' U. S. Patent No. 2,082,598, issued June 1, 1937, there is described a landing gear including a jointed strut arranged in such manner as to act both as a brace strut for keeping the landing gear in...
8 citations
Patent•
06 Oct 2008
TL;DR: In this paper, a lift-producing body is configured for attachment to the landing gear assembly to maximize the aerodynamic lift created by the lift producing body or minimize the drag induced by the body.
Abstract: Apparatus and methods provide for the use of a lift-producing body with a landing gear assembly in order to provide a lifting force during landing gear operations that reduces the load on the landing gear actuator. According to embodiments, the lift-producing body may be configured for attachment to the landing gear assembly. The lift-producing body may be reconfigured while the landing gear assembly is being retracted or deployed in order to maximize the aerodynamic lift created by the lift-producing body or to minimize the drag induced by the lift-producing body.
8 citations
TL;DR: It is concluded that the last and fourth developed specimen was the best in absorbing the impact energy and enduring the crash.
Abstract: The objective of this study was to analyze the results obtained from tests done by simulating the crash landing of a rotary wing unmanned air vehicle with a skid type landing gear. The experimental and computational methods were used in the simulation tests. In the rst portion of the test; namely with the experimental method, the impact loads induced by the simulated crash landing and the stresses, strains, deformations generated by these loads, were recorded by drop test apparatus. In the second portion of the test with the computational method, free falling of the skid type landing gear was modeled and crash landing test was simulated numerically by using ANSYS code. Experimental methods were applied on four skid landing gear specimens with di erent shapes. Each of the test samples used in the following test was evolved because each sample was developed and redesigned based on the feedback results obtained from the former test. The rst three test specimens were manufactured from 2024 T3, 7075 T6 and 6061 T6 aluminum alloys respectively and all of them were curved in Π-form with a solid cross section. The last and fourth specimen was also manufactured from 6061 T6 aluminum alloy and it was curved in a hollow semi-circle form (∩-form). It is concluded that the last and fourth developed specimen was the best in absorbing the impact energy and enduring the crash.
8 citations
Patent•
16 May 1940
TL;DR: In this paper, a locking mechanism for adjustable struts for use on airplanes is described, in which the strut is provided in its periphery with ball receiving notches in which balls are locked and released by cooperating ring-shaped members.
Abstract: This invention relates to locking mechanism for toothed racks, particularly for adjustable struts for use on airplanes, in which the strut is provided in its periphery with ball receiving notches in which balls are locked and released by cooperating ring-shaped members. Mechanisms of the above-indicated...
8 citations