Results 31 to 40 of about 11,349 (300)
Preliminary Estimation Methods for the Definition of the Landing Gear [PDF]
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
Supplementary data for "More Electric Aircraft Conversion to All-Electric During Ground Operations: Battery Powered Landing Gear Drive System" [PDF]
Supplementary data for the manuscript entitled "More Electric Aircraft Conversion to All-Electric During Ground Operations: Battery Powered Landing Gear Drive ...
Dayyani, Iman +3 more
core +3 more sources
The load-carrying capacity of medium hardness gears was investigated from the viewpoint of gear-manufacturing methods (hardness, gear accuracy and tooth surface roughness). First, the gear accuracies and tooth surface roughnesses of ground gears, hobbed gears and finish hobbed gears were examined in detail.
Tsutomu NAKANISHI +2 more
openaire +2 more sources
Geometric nonlinearities of aircraft systems [PDF]
Nonlinearities due to geometric effects, in particular, via angular variables that are not small, are important for aircraft operation. Geometric nonlinearities have a strong effect on the dynamics of the aircraft system under consideration, and they are
Thota, P +8 more
core +1 more source
Six-wheel trolley type landing gear ground load analysis study
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
Technological potential and performance of gears ground by dressable CBN tools [PDF]
S.54-59Dressable vitrified bond CBN grinding tools combine the advantages of other common tool systems in generating gear grinding. Yet despite those technological advantages, there is only a small market distribution of these grinding tools due to high ...
Klocke, Fritz +4 more
core
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
Laboratory investigations on landing gear ground reactions (load) measurement [PDF]
Ground reaction measurement in landing gear laboratory tests is used in order to gain knowledge about loads transferred to the aircraft structure. Ground reaction level is defined during aircraft design phase and it is required not to exceed limit value ...
Skorupka, Z.
core +1 more source
Overturning protection control of lunar-planetary lander with semi-active shock absorber
This paper describes the attitude control method for overturning prevention for a lunar planetary lander which uses a semi-active damper on the landing leg.
Takao MAEDA +2 more
doaj +1 more source
To better develop and protect the pelagic fishery in the northwest Indian Ocean, China’s fishing enterprises have been producing pelagic fisheries in the said area for a long time.
Haibin Han +14 more
doaj +1 more source

