Results 81 to 90 of about 106,651 (339)

Shimmy of Aircraft Main Landing Gears

, 2000
The landing gear is an important aircraft system, which has to meet many different design requirements. It is a highly loaded structure, which is designed for minimum weight. Shimmy is a dynamic instability of the landing gear, which is caused by the interaction of the dynamic behaviour of the landing gear structure and tyres.
openaire   +3 more sources

An Assessment of Flap and Main Landing Gear Noise Abatement Concepts [PDF]

21st AIAA/CEAS Aeroacoustics Conference, 2015
A detailed assessment of the acoustic performance of several noise reduction concepts for aircraft flaps and landing gear is presented. Consideration is given to the best performing concepts within the suite of technologies that were evaluated in the NASA Langley Research Center 14- by 22-Foot Subsonic Tunnel using an 18 percent scale, semi-span, high ...
Mehdi R. Khorrami, William M. Humphreys, David P. Lockard   +2 more
openaire   +1 more source

A review of the historic and present ecological role of aquatic and shoreline wood, from forest to deep sea

Biological Reviews, EarlyView.
ABSTRACT The ecology of forests, their losses, and terrestrial wood decomposition dynamics have been intensively studied and reviewed. In the aquatic realm, reviews have concentrated on large wood (LW) in rivers and the transition from freshwater to marine environments in the Pacific Northwest of North America. However, a comprehensive global synthesis
Jon Dickson, Ellen Wohl, Laura L. Govers, Oscar Franken, Tjeerd J. Bouma, Han Olff, Britas Klemens Eriksson, Maryann S. Watson, Luísa M.S. Borges, Tjisse van der Heide   +9 more
wiley   +1 more source

Dynamics of Oleo-Pneumatic Landing Gear Systems for Carrier-Based Unmanned Aerial Vehicles

Aerospace
This paper presents a comprehensive analysis of the dynamics and design of oleo-pneumatic shock absorbers for the landing gear of carrier-based Unmanned Aerial Vehicles (UAVs). Carrier-based operations impose unique challenges due to high-impact landings,
Ali Dinc, Faruk Yildiz, Junkun Ma, Reg Pecen, Suleiman Obeidat, Ali Mamedov, Murat Otkur   +6 more
doaj   +1 more source

DESIGN OF FORCE MEASURING SYSTEM ON MAIN LANDING GEAR WEIGHT DROP TESTING MACHINE FOR THE APPLICATION OF LSU SERIES

Jurnal Teknologi Dirgantara, 2020
In this research, the design of the force measuring system on main landing gear weight drop test for the LSU series that developed by LAPAN was carried out. The principle of this machine is to apply the load according to the weight of the aircraft on the
Yusuf Giri Wijaya, Abian Nurrohmad
semanticscholar   +1 more source

The spread of non‐native species

Biological Reviews, EarlyView.
ABSTRACT The global redistribution of species through human agency is one of the defining ecological signatures of the Anthropocene, with biological invasions reshaping biodiversity patterns, ecosystem processes and services, and species interactions globally.
Phillip J. Haubrock, Ali Serhan Tarkan, Irene Martín‐Forés, Stelios Katsanevakis, Ronaldo Sousa, Ismael Soto, Andy J. Green, Antonín Kouba, Teun Everts, Victoria Dominguez Almela, Nadège Belouard, Cang Hui, Jamie Bojko, Victor Deklerck, Margaux Boeraeve, Franz Essl, J. Robert Britton   +16 more
wiley   +1 more source

A comparison of aircraft tire skid with initial wheel rotational speed using ANSYS transient simulation [PDF]

, 2016
Based on heavy aircraft main landing gear tires touchdown skidding process, patents have been registered since the 1940s to improve tire safety, decrease the substantial wear and smoke that results from every landing by spinning the rear wheels before ...
Alroqi, Abdurrhman A, Wang, Weiji
core  

A bifurcation study to guide the design of a landing gear with a combined uplock/downlock mechanism [PDF]

, 2014
This paper discusses the insights that a bifurcation analysis can provide when designing mechanisms. A model, in the form of a set of coupled steady-state equations, can be derived to describe the mechanism.
Knowles, James A C, Krauskopf, Bernd, Lowenberg, Mark H, Neild, Simon A   +3 more
core   +3 more sources

An Eco‐Social Lens on Voice for Undervoiced and Unvoiced Stakeholders

Business Strategy and the Environment, EarlyView.
ABSTRACT This conceptual paper argues it is important from an ecological–social (eco‐social) whole system point of view for businesses and policymakers to take the interests of and impacts on unvoiced and undervoiced [un(der)voiced] stakeholders into consideration for both strategic and justice reasons.
Sandra Waddock
wiley   +1 more source

Analysis of Coordinated Steering Performance in Multi‑wheel Landing Gears

Transactions of Nanjing University of Aeronautics and Astronautics
During aircraft ground steering， the nose landing gear （NLG） tires of large transport aircraft often experience excessive lateral loads， leading to sideslip. This compromises steering safety and accelerates tire wear.
GUI Xiwen, ZHANG Ming, SHI Xiazheng, HU Tianyang, XU Yuhan   +4 more
doaj   +1 more source