ISO INTERNATIONAL STANDARD 10816-6 First edition 1995-12-15 Mechanical vibration Evaluation of machine vibration by measurements on non- rotating parts - Part 6: Reciprocating machines with power ratings above 100 kW Vibrations mecaniques Evaluation des vibrations des machines par mesurages sur les parties non tournantes - Partie 6: Machines alternatives de puissance nominale superieure a 100 kW ISO Referencenumber ISO 10816-6:1995(E) Copyright Intermational Organization for Standardization No rep Not for Resale ISO10816-6:1995(E) Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through IsO technical committees. Each member body interested in a subject for which a technical committee. International organizations, governmental and non-governmental, in liaison with isO, also take part in the work. IsO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electro- technical standardization. circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. International Standard ISO 10816-6 was prepared jointly by Technical Com- mittees ISO/TC 108, Mechanical vibration and shock, Subcommittee SC 2, Measurement and evaluation of mechanical vibration and shock as applied to machines, vehicles and structures, and IsO/TC 70, Internal combustion engines, Subcommittee Sc 2, Performance and tests. IS0 10816 consists of the following parts, under the general title Mechanical vibration -Evaluation of machine vibration by measurements on non-rotating parts: Part1:Generalguidelines Part 2: Large land-based steam turbine generator sets in excess of 50MW Part 3: Industrial machines with nominal power above 15 kw and in situ -Part 4: Gas turbine driven sets excluding aircraft derivatives Part 5: Machine sets in hydraulic power generating and pumping plants Part 6: Reciprocating machines with power ratings above 100 kw Annex A forms an integral part of this part of ISO 10816. Annexes B to D are for information only. @ISO1995 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or microfilm, without permission in writing from the publisher. International OrganizationforStandardization Case postale 56 · CH-1211 Geneve 20 · Switzerland Printed in Switzerland ii No reproduction or networking permitted withc Not for Resale @ ISO ISO 10816-6:1995(E) Introduction IsO 10816-1 gives general guidelines for the evaluation of machine vibration by measurements on non-rotating parts. This part of IsO 10816 is a new document which establishes procedures and guidelines for the measurement and classification of mechanical vibration of reciprocating machines. In general. this part of iSO 10816 refers to vibration of the main structure of the machine mounted on this structure. Recommendations for measurements and evaluation criteria are provided in this part of ISO 10816. Typical features of reciprocating machines are the oscillating masses, the associated pipework. All these features cause considerable alternating forces amplitudes are generally higher than for rotating machinery but, since they are largely determined by the design features of the machine, they tend to remain more constant over the life of the machinery than for rotating machinery. structure of the machine and quantified according to this part of sO 10816 may only give a rough idea of the stresses and vibratory states of the components within the machine itself. For example, torsional vibration of rotating parts cannot generally be determined by measurements on the structural parts of the machine. The damage, which can occur when sustained predominantly by machine-mounted components (e.g. turbo- the machine with its peripheral parts (e.g. pipelines) or monitori