Results 11 to 20 of about 7,662 (263)

Research on the Influence of Temperature on the Cushioning Performance of Oil-air Landing Gear

open access: yesHangkong gongcheng jinzhan, 2022
The oil characteristics and inflation pressure inside the oil-air shock absorber will change with the ambient temperature,which will affect the cushioning performance of landing gear.In order to explore the effect of temperature on the cushioning ...
HU Rui, MU Rangke, SONG Dejun, CHEN Yi
doaj   +1 more source

Gear micropitting initiation of ground and superfinished gears: Wrought versus pressed and sintered steel

open access: yesTribology International, 2021
Abstract This paper investigates the resistance of micropitting on two materials, using an FZG back-to-back test rig with C-PT gears. The materials are wrought steel (16MnCr5) and a commercial powder metallurgical material (Astaloy™ Mo). Two finishing methods were studied: grinding and superfinishing. Experimental results show that the superfinishing
Edwin Bergstedt   +4 more
openaire   +1 more source

Study on design of taper shaped skiving cutters for internal gears (Taper shaped cutter ground with trapezoidal wheels used for pinion cutter grinding)

open access: yesNihon Kikai Gakkai ronbunshu, 2017
Taper shaped skiving cutters are commonly used in gear skiving because they provide clearance angles under a simple gear arrangement and they could have lower cutting resistance than cylindrical skiving cutters. Their tooth flanks are generally ground by
Koichiro URIU   +6 more
doaj   +1 more source

Experimental Validation for the Performance of MR Damper Aircraft Landing Gear

open access: yesAerospace, 2021
The landing gear of an aircraft serves to mitigate the vibration and impact forces transmitted from the ground to the fuselage. This paper addresses magneto-rheological (MR) damper landing gear, which provides high shock absorption efficiency and ...
Bang-Hyun Jo   +3 more
doaj   +1 more source

Study of Automated Control System of Underwater Dosimetry Kit in Remote bottom radioactivity measurement in deepwater Areas

open access: yesГлобальная ядерная безопасность, 2022
The paper presents a study of the automated control system of the underwater radio-controlled unmanned vehicle (as a prototype) which monitors the radiation in the deepwater area bottom (with the depth over 10 m), and a system of the operator-vehicle ...
A. P. Elokhin   +4 more
doaj   +1 more source

Study on Planetary Gear Drive Using Internal Gear Easily Ground

open access: yesJournal of the Japan Society for Precision Engineering, Contributed Papers, 2004
A planetary gear drive having the internal gear that can be easily ground is developed. This gear drive is composed of the three parts; the internal gear finished by the grinding wheel with a trapezoid profile, the planet gear conjugate to the internal gear, and the sun gear conjugate to the planet gear. In this paper, a method to design the gear tooth
Akira KOHARA, Hidehiro YOSHINO
openaire   +2 more sources

Drawbar Performance of Tractor Tyres with Steel Spikes At 100%-Wheel Slip

open access: yesActa Technologica Agriculturae, 2022
A driving wheel is a part of a tractor, which transmits forces from a tyre to the ground. Therefore, it affects the tractor movement and the pulling of an implement.
Abrahám Rudolf   +6 more
doaj   +1 more source

Preliminary Estimation Methods for the Definition of the Landing Gear [PDF]

open access: yesINCAS 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

Vibration diagnosis method of multistage gearing to point out ghost noise source with amplitude fluctuation analysis

open access: yesNihon 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

Overturning protection control of lunar-planetary lander with semi-active shock absorber

open access: yesNihon Kikai Gakkai ronbunshu, 2014
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

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