ISO/TS 31657-3:2020

Published (Edition 1, 2020)

Expected to be replaced by ISO/DIS 31657-3 within the coming months.

ISO/TS 31657-3:2020

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Abstract

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.

General information

Status
: Published

Publication date
: 2020-06

Stage
: International Standard to be revised [90.92]
Edition
: 1

Number of pages
: 73
Technical Committee :
ISO/TC 123/SC 8

ICS :
21.100.10
RSS updates

Next version under development

Draft

International Standard

ISO/DIS 31657-3

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

Reference number
ISO/DIS 31657-3

Edition 1

Draft International Standard