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ISO/TS 31657-3:2020

Plain bearings — Hydrodynamic plain journal bearings under steady-state conditions — Part 3: Functions for calculation of tilting pad journal bearings ISO/TS 31657-3:2020

Publication date:   Jun 24, 2020

General information

90.92 Standard to be revised   Feb 5, 2024

ISO

ISO/TC 123/SC 8 Calculation methods for plain bearings and their applications

Technical Specification

21.100.10   Plain bearings

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Scope

This document specifies the characteristic values for selected tilting-pad journal bearings with four or five centrally or eccentrically supported tilting pads and with angular spans of pad sliding surfaces of Ω = 80°, 60° and 45°.
The functions plotted and listed in table form below are required for the operationally safe design of hydrodynamic tilting-pad journal bearings according to ISO/TS 31657-1. They are based on the presumptions and boundary conditions indicated there and only apply to stationary operating states. The symbols used are explained in ISO/TS 31657-1; calculation examples are also included there.
The calculation method described in ISO/TS 31657-1 can also be used for other tilting-pad journal bearing designs, if the numerical solutions of the basic equations are available in the same manner for these designs.

Life cycle

NOW

PUBLISHED
ISO/TS 31657-3:2020
90.92 Standard to be revised
Feb 5, 2024

REVISED BY

IN_DEVELOPMENT
ISO/DIS 31657-3