Results 111 to 120 of about 10,213 (232)

Development of a full-scale transmission testing procedure to evaluate advanced lubricants [PDF]

open access: yes
Experimental tests were performed on the OH-58A helicopter main rotor transmission in the NASA Lewis 500-hp Helicopter Transmission Test Stand. The testing was part of a joint Navy/NASA/Army lubrication program.
Decker, Harry J.   +2 more
core   +1 more source

弧齿锥齿轮大轮齿面方程的封闭解

open access: yesJixie chuandong, 2013
Gear tooth surface geometry of spiral bevel gears is complex.Their tooth surface parameters are usually determined by solving a system of nonlinear equations.A six-order polynomial equat ion about the gear tooth surface coordinates of the spiral bevel ...
田行斌
doaj  

Numerical Simulation and Process Parameter Optimization of Warm Forging Near-Net Forming for Spiral Bevel Gear

open access: yesApplied Sciences
The warm-forging technology of the spiral bevel gear (873 K–1073 K) was studied. Based on the rigid–plastic finite element method, a numerical simulation was carried out by using DEFORM V11.0 software to explore the influence of different process ...
Zhen Wang   +3 more
doaj   +1 more source

Apparatus for forming drive belts [PDF]

open access: yes, 1974
An apparatus for manufacturing belts, such as seamless belts, is provided, the apparatus has relatively movable rollers that are mounted in an oven. A belt blank, for example, of a thin polyester film, is rotated on the rollers as heat is applied.
Topits, A., Jr.
core   +1 more source

Contact stress analysis of spiral bevel gears using nonlinear finite element static analysis [PDF]

open access: yes
A procedure is presented for performing three-dimensional stress analysis of spiral bevel gears in mesh using the finite element method. The procedure involves generating a finite element model by solving equations that identify tooth surface coordinates.
Bibel, G. D.   +3 more
core   +1 more source

Experimental testing of prototype face gears for helicopter transmissions [PDF]

open access: yes
An experimental program to test the feasibility of using face gears in a high-speed and high-power environment was conducted. Four face gear sets were tested, two sets at a time, in a closed-loop test stand at pinion rotational speeds to 19,100 rpm and ...
Bossler, R., Handschuh, R., Lewicki, D.
core   +1 more source

Research of the Geometric Characteristic of Undercutting and Limit Normal Point in Gear Geometry

open access: yesJixie chuandong, 2015
The undercutting phenomena and the limit normal point are two important concepts in gearing theory,design and manufacturing.Based on the different opinions about them in the current research of limit normal point and the geometry and movement ...
Chen Ningxin
doaj  

Straddle design of spiral bevel and hypoid pinions and gears [PDF]

open access: yes
The design of spiral bevel and hypoid gears that have a shaft extended from both sides of the cone apex (straddle design) is considered. A main difficulty of such a design is determining the length and diameter of the shaft that might be undercut by the ...
Bossler, Robert   +4 more
core   +1 more source

Некоторые вопросы методик прочностного расчета закрытых конических передач [PDF]

open access: yes, 2002
In this paper some questions of methods of calculation and selection of geometrical parameters of bevel gears are ...
Курмаз, Леонид Владимирович
core  

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