TY - CHAP

T1 - Developments in elastohydrodynamic lubrication calculations with multilevel techniques

AU - ten Napel, W.E.

AU - Yenner, C.H.

PY - 1990

Y1 - 1990

N2 - Since the beginning of the eighties quite a number of papers regarding film thickness and pressure calculations in E.H.L. have been published. Different methods, i.e. Newton Raphson, Gauss Seidel, variational techniques and even finite element techniques, have been applied. At the University of Twente, since 1986, an alternative method, i.e. the multigrid method, has been developed and applied. The advantages and features of this method are discussed in this paper. It is shown that the complexity of the method, in combination with a multi-level integration technique, is about O(n). As a result of this low complexity the method enables accurate solution, i.e. using large numbers of nodes, of the problems; even on small capacity computers. Furthermore it allows detailed simulations of transient problems. Such simulations are of particular interest with respect to the relation between surface features, e.g. indentations, and fatigue life of E.H. L. components. In this paper some recent results with regard to the over-rolling of a surface irregularity are presented. (A)

AB - Since the beginning of the eighties quite a number of papers regarding film thickness and pressure calculations in E.H.L. have been published. Different methods, i.e. Newton Raphson, Gauss Seidel, variational techniques and even finite element techniques, have been applied. At the University of Twente, since 1986, an alternative method, i.e. the multigrid method, has been developed and applied. The advantages and features of this method are discussed in this paper. It is shown that the complexity of the method, in combination with a multi-level integration technique, is about O(n). As a result of this low complexity the method enables accurate solution, i.e. using large numbers of nodes, of the problems; even on small capacity computers. Furthermore it allows detailed simulations of transient problems. Such simulations are of particular interest with respect to the relation between surface features, e.g. indentations, and fatigue life of E.H. L. components. In this paper some recent results with regard to the over-rolling of a surface irregularity are presented. (A)

UR - http://www.scopus.com/inward/record.url?scp=85041143205&partnerID=8YFLogxK

M3 - Chapter

AN - SCOPUS:85041143205

SN - 9780852987520

T3 - IMechE Seminar ;1990-7

BT - Rolling element bearings towards the 21st century

PB - Mechanical Engineering Publications Ltd.

CY - London

ER -