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Modelling of Elastic Gearboxes Using a Generalized Gear Contact Model [PDF]
, 2012 The object of this paper is to present an universal model that describes the gear contact between two gears in a planar environment. The model includes elastic effects between the gear wheels.
Franciscus van der Linden +1 more
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Preliminary Estimation Methods for the Definition of the Landing Gear [PDF]
INCAS Bulletin, 2018 The landing gear of an aircraft is an important part of the aircraft structure. The landing and the taking off are most critical parts of a flight mission.
Daniela BARAN +2 more
doaj +1 more source
Perforated fairings for landing gear noise control [PDF]
, 2008 Landing gears of commercial aircraft make an important contribution to total aircraft noise in the approach configuration. Using fairings to shield components from high speed impingement reduces noise.
Boorsma, K. +5 more
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Intermittent gear rattle due to interactions between forcing and manufacturing errors [PDF]
, 2008 The interaction between eccentricity and an external forcing fluctuation in gear rattle response is investigated experimentally. The experimental rig consists of a 1:1 ratio steel spur gear pair, the input gear being controlled in displacement and the ...
Wilson, RE +5 more
core +1 more source
Experimental assessment of low noise landing gear component design [PDF]
, 2009 Landing gear related airframe noise is one of the dominant aircraft noise components atapproach, so continued research efforts to reduce landing gear noise are essential.
Chow, Leung Choi +13 more
core +1 more source
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.
Lowenberg, Mark H +7 more
core +1 more source
Geometrical Specification Model for Gear - Expression, Metrology and Analysis [PDF]
, 2007 To ensure the gear precision, industries need a coherent model to express, to analyse and to check geometrical specifications. Most gear tolerance representations are directly driven by the convenience of dimensional metrology and not by the convenience ...
DANTAN, Jean-Yves +4 more
core +1 more source
Six-wheel trolley type landing gear ground load analysis study
Xibei Gongye Daxue Xuebao, 2022 为了分析起落架支柱柔性和机身柔性对飞机地面运动载荷的影响, 应用动力学基本原理, 建立了六轮小车式起落架动力学模型及全机模型。对活塞杆与外筒柔性化处理, 并在对称水平着陆、机尾下沉着陆和滚转着陆3种着陆工况下, 分析了小车式起落架的载荷分配情况, 研究了着陆工况及支柱柔度对小车式起落架载荷分配的影响。对机身进行柔性化处理, 分析机身柔性对地面载荷的影响。结果表明: 支柱柔度对起落架航向载荷影响较大, 对垂向载荷影响较小; 考虑机身柔性后, 弹性机身变形吸收能量, 有助于减弱机体振动 ...
ZHANG Ming +3 more
doaj +1 more source
Effects of tooth heights on noise and vibration of mirrorlike ground gears.
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C, 1991 Spur gears with profile contact ratios ranging from 1.62 to 2.15 were mirrorlike finished to an accuracy of JIS 0 class using a CNC gear grinder designed and made by the authors. Elastic deformations of teeth and the resulting rotational errors of test gears were calculated, and then the amount and the starting point of profile modifications were ...
ISHIBASHI, Akira +4 more
openaire +2 more sources
Nihon Kikai Gakkai ronbunshu, 2015 Ground gears sometimes brings ‘ghost noise’ whose frequency is non-integer order of mesh frequency and the cause of ghost noise is surface undulation due to manufacturing process. But the undulation is slight and it becomes difficult to detect with tooth
Shigeki MATSUMURA, Haruo HOUJOH
doaj +1 more source