ISO/DIS 31657-3

This Draft International Standard is in the enquiry phase with ISO members.

Will replace ISO/TS 31657-3:2020

ISO/DIS 31657-3

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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
: Under development

You can help develop this draft international standard by contacting your national member

Stage
: DIS ballot initiated: 12 weeks [40.20]
Edition
: 1

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

ICS :
21.100.10
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