Results 1 to 10 of about 154,875 (200)

齿轮轮齿误差对啮合刚度影响规律研究

open access: yesJixie chuandong, 2014
Considering pitch deviation,profile deviation and helix deviation,the loaded tooth contact model of a helical gear pair is built.A method to calculate the mesh stiffness with gear errors is proposed.The variation law of mesh stiffness and the total ...
郑雅萍   +3 more
doaj  

Improvement on Meshing Stiffness Algorithms of Gear with Peeling [PDF]

open access: yesSymmetry, 2019
This paper investigates the effect of a gear tooth peeling on meshing stiffness of involute gears. The tooth of the gear wheel is symmetric about the axis, and its symmetry will change after the gear spalling, and its meshing stiffness will also change during the meshing process. On this basis, an analytical model was developed, and based on the energy
Lingli Cui   +3 more
openaire   +1 more source

A method for static and dynamic load analysis of standard and modified spur gears [PDF]

open access: yes, 1983
The mesh stiffness and dynamic load characteristics for several cases of the Normal Contract Ratio and High Contact ratio gearing. The considered contact ratios were grouped in the general range of 1.7,2.0, and 2.3.
Kasuba, R.
core   +1 more source

A numerical study on impact and compression after impact behaviour of variable angle tow laminates [PDF]

open access: yes, 2013
Recent developments of variable angled tow (VAT) technology have indicated that variable stiffness composite laminates offer a strong potential for structural tailoring.
Dang, Thi D., Hallett, Stephen R.
core   +2 more sources

An analysis of the practical DPG method [PDF]

open access: yes, 2011
In this work we give a complete error analysis of the Discontinuous Petrov Galerkin (DPG) method, accounting for all the approximations made in its practical implementation.
Gopalakrishnan, Jay, Qiu, Weifeng
core  

Fatigue crack growth in thin notched woven glass composites under tensile loading. Part II: modelling [PDF]

open access: yes, 2011
Fatigue propagation of a through-the-thickness crack in thin woven glass laminates is difficult to model when using homogeneous material assumption. Crack growth depends on both the fatigue behaviour of the fibres and of the matrix, these two phenomena ...
Barrau, Jean-Jacques   +3 more
core   +3 more sources

载荷与齿轮啮合刚度、重合度的关系研究

open access: yesJixie chuandong, 2014
The calculation method of loaded gear mesh stiffness is proposed based on the finite element method(FEM).The time-varying mesh stiffness based on this method and ISO6336-1:2006standard is compared,the correctness and accuracy of the presented calculation
唐进元, 王志伟, 雷敦财
doaj  

EFFECT OF PITTING ON MESHING STIFFNESS OF GEARS

open access: yesJixie qiangdu, 2020
The change of meshing stiffness of gears is caused by the change of meshing position and meshing number between gears when the gears are running.The change of meshing stiffness reflects the change of meshing process of gears.When pitting occurs,the meshing stiffness of gears will change,which will lead to the change of vibration law of gearbox.This ...
ZHAO Xin, ZHANG XiuHua, PU Jiang
openaire   +1 more source

Coupled analysis of material flow and die deflection in direct aluminum extrusion [PDF]

open access: yes, 2010
The design of extrusion dies depends on the experience of the designer. After the die has\ud been manufactured, it is tested during an extrusion trial and machined several times until it works\ud properly.
Assaad, W., Geijselaers, H.J.M.
core   +3 more sources

齿根裂纹与轮齿啮合刚度关联规律研究

open access: yesJixie chuandong, 2014
Gear mesh stiffness is the foundation of the study on gear dynamics.Taking the spur gear as research object,the finite element model of the spur gear with root crack is established,and the accurate calculation method of gear mesh stiffness is proposed ...
唐进元   +3 more
doaj  

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