Results 81 to 90 of about 310,977 (203)

Preliminary Nose Landing Gear Digital Twin for Damage Detection

Aerospace
An increase in aircraft availability and readiness is one of the most desired characteristics of aircraft fleets. Unforeseen failures cause additional expenses and are particularly critical when thinking about combat jets and Unmanned Aerial Vehicles ...
Lucio Pinello, Omar Hassan, Marco Giglio, Claudio Sbarufatti   +3 more
doaj   +1 more source

Adaptive observer-based fault detection and diagnosis for aircraft landing gear actuators

Advances in Mechanical Engineering
This paper aims to present an observer-based diagnostic structure for actuator fault detection in the aircraft landing gear avionics system. The observer estimates system states by comparing measured and estimated gear positions, generating residuals ...
Azeddine Ratni, Djamel Benazzouz
doaj   +1 more source

Lateral response of nose-wheel landing gear system to ground-induced excitation

, 2007
Nose-wheel landing gears can become laterally unstable during takeoff, taxiing, and landing, exhibiting divergent. coupled lateral flexural and torsional oscillations called shimmy.
SURYANARAYAN, S, SURA, NK
core   +1 more source

Dual-Boundary Mechanism of Shimmy over the Full Speed Range in Nose Landing Gear and Inerter-Based Shimmy Suppression Design

Aerospace
To overcome the limitation of conventional nose landing gear shimmy damper design, which is mainly based on the critical damping for torsional shimmy while neglecting the high-damping-side instability boundary, this study establishes a nonlinear shimmy ...
Jian Wei, Hangming Liu, Jiahao Zhang, Shixing Zhu, Shuangbao Li, Hengjia Zhu   +5 more
doaj   +1 more source

Airworthiness verification of additive manufacturing technology for large integral metallic structure

Journal of Aeronautical Materials, 2019
In order to solve the problems existing in airworthiness verification of the large integral metallic structure for civil aircraft main bearing part, the airworthiness verification of the metallic structure additive manufacturing technology was carried ...
JIANG Wu, LIU Mujun, HAO Xiaoning, LUO Linyin   +3 more
doaj   +1 more source

Nose-Over and Nose-Down Accidents in General Aviation: Tailwheels and Aging Airplanes

Safety
Safety in General Aviation has been a continuous concern. About 12% of all airplane accidents in General Aviation involve nose-overs and nose-down events.
Alex de Voogt, Kayla Louteiro
doaj   +1 more source

Health Monitoring for Electro-mechanical Nose Landing Gear Door Actuator of a UAV, Based on Simulation Modelling and Data-driven Techniques

Chemical Engineering Transactions, 2013
Nowadays, the aerospace industry has to maintain and improve its global competitiveness and meet the demand of the new requirements which are constantly emerging.
S. Ferreiro, A. Jimenez, J. Madariaga, E. Novillo, S. Fernandez, A. Alia, E. Morante   +6 more
doaj   +1 more source

Baseline A340 Nose Landing Gear Noise Tests

, 1998
Baseline noise testing within the subject RAIN-Project (RAIN: Reduction of Airframe and Installation Noise) of a A340 full-scale nose landing gear in the DNW aimed at determining the dominant noise sources and at providing a reference data set for ...
Dobrzynski, W., Gehlhar, B., Buchholz, H.   +2 more
core  

Analisis Statik dan Dinamik Nose Landing Gear pada Pesawat Unmanned Aerial Vehicle (UAV) [PDF]

, 2018
Pada tugas akhir ini dikaji pemodelan nose landing gear pesawat Unmanned Aerial Vehicle (UAV) berdasarkan variasi dimensi secara analisis statik dan dinamik. Nose landing gear dimodelkan dalam bentuk pelat U.
Sandra, Prima Saputra
core   +1 more source

Failure analysis of Nose landing gear strut assembly

, 2006
Damaged components of the Nose landing gear strut assembly of an aircraft were analyzed.
Sujata, M, Bhaumik, SK, Venkataswamy, MA, Suresh Kumar, M, Madan, M   +4 more
core