Finite element analysis of Hertz contact problem with friction

1987 ◽  
Vol 3 (1) ◽  
pp. 39-56 ◽  
Author(s):  
N. Chandrasekaran ◽  
W.E. Haisler ◽  
R.E. Goforth
2008 ◽  
Vol 354 (47-51) ◽  
pp. 5331-5333 ◽  
Author(s):  
J. Ordieres-Meré ◽  
A. Bello-García ◽  
V. Muñoz-Munilla ◽  
J.J. Del-Coz-Díaz

Author(s):  
Ichiro Moriwaki ◽  
Tomohito Tani ◽  
Toshiro Miyata ◽  
Akio Ueda ◽  
Masayoshi Yoshihara

A new finite element analysis for meshing gear pair has been developed with a new element called “tooth flank film element.” The new element is a phantom element put on a tooth flank without any thickness, and enables boundary conditions for a contact problem in meshing teeth to be easily dealt with. In the present paper, contact stresses between tooth flanks of mating gear pair calculated with the proposed finite element method are compared with stresses measured with pressure measurement films. As a result, the proposed method was confirmed to be useful for evaluation of contact stress.


2019 ◽  
Vol 14 (2) ◽  
Author(s):  
Jayakumar K ◽  
Aldrin Raj J ◽  
Somesh Subramanian S

The contact between the cam and follower that exists in the valve strain system of IC engine influences wear. The dynamic analysis of cam and follower system in carried to find the normal compressive force for various cam rotational angles. Based on this compressive force on the cam, the hertz contact stresses and surface wear are calculated theoretically. Finite element analysis was carried out in the three critical portions of the cam such as cam nose region, cam tangent region and cam base circle region to compare the results. The results showed that cam rotational angle directly affects the contact pressure. The max contact pressure occurs in the nose end of the cam. The results showed that principle stress and wear also increases with cam rotational angle


Author(s):  
P A Dabnichki ◽  
A D Crocombe ◽  
S C Hughes

Non-linear finite element analysis has been used to investigate the contact problem between a buttock and a cushion of varying properties. The buttock tissue has been modelled on the macroscale by assuming it to be a hyperelastic (rubber-like) material with properties that correspond to the overall buttock response. Both rigid and flexible cushions have been considered. The contact between the cushion and the buttock has been modelled assuming both friction and friction-free conditions. The effect of these parameters on the buttock-cushion deformation and the tissue compressive and shear stress distributions have been presented. This study forms part of work towards the development of body segment simulators for use in investigations of seating and other support surfaces.


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