ISO INTERNATIONAL STANDARD 17540 First edition 2016-12-15 Space systems Liquid rocket engines and test stands Terms and definitions Systemes spatiaux - Moteurs de fusée liquides et stands d'essai - Termes et définitions Reference number ISO 17540:2016(E) ISO International Organization for Standardization @ISO2016 No reproduction or networking permitted without license from IHS IS0 17540:2016(E) COPYRIGHT PROTECTED DOCUMENT IS0 2016, Published in Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form written permission. Permission can be requested from either Iso at the address below or Iso's member body in the country of the requester. ISO copyrightoffice Ch. de Blandonnet 8 . CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 copyright@iso.org www.iso.org Internatinir DrganizationforStandardization No reproduction or networking permited without license from IHS IS0 17540:2016(E) Contents Page Foreword ..V Introduction. ..vi 1 Scope. 2 Terms and definitions 2.1 General 2.2 Engine units .1 2.3 Engine types by way of work process 2 2.4 Engine types by multiplicity of use and integration .2 2.5 Engine types by purpose. .2 2.6 Low-thrust engine types by way of work process. .3 2.7 General parameters and performance of engine. .3 2.8 Engine time characteristics, types of operating and resources .6 2.9 Low-thrust engine performance. 2.10 Engine operation modes.. .9 2.11 Low-thrust engine operation modes 10 2.12 Chamber (gas generator) components .10 2.13 Gas generator types.. ..12 2.14 Operating process in chamber (gas generator) ..12 2.15 Nozzle types ..14 2.16 Nozzle items ..15 2.17 Nozzle characteristics .16 2.18 Nozzle operation modes ..16 2.19 Flow in nozzle .16 2.20 Turbine pump components. ..17 2.21 Pump characteristics. ..18 2.22 Turbine pump general characteristics ..18 2.23 Automationunits ..19 2.24 Devices and methods of control efforts creation in engines .19 2.25 Engine cooling .19 2.26 Engine thermal protection 20 2.27 Engine tests: General. 20 2.28 Types of engine tests: Thermal loads. 21 2.29 Types of engine tests: Associate with rocket 21 2.30 Types of engine tests: Test site. 21 2.31 Types of engine tests: Organizational factor and test site 21 2.32 Types of engine tests: Test conditions. 21 2.33 Types of engine tests: Accelerated data accessing 22 2.34 Types of engine tests: Test purposes. 22 2.35 Types of tests specific for low-thrust engines. 23 2.36 Test technology. 23 2.37 Test conditions. 23 2.38 Test results. 24 2.39 Engine reliability 24 2.40 Engine defects.. 25 2.41 Engine failure modes 25 2.42 Engine operation. 25 2.43 Analysis of engine technical status .26 2.44 Engine reliability index .26 2.45 Engine quality control .26 2.46 Structural and functional analysis of reliability 27 2.47 Test stands: General. 27 2.48 Stand types. 28 2.49 Stand systems. 28 2.50 Post-test processing. .29 ntemaional oganzation@S6All rights reserved ii vided by IHS under license with ISO ed without license from IHS