STANDARD. ISO. Second edition. Mechanical vibration — Evaluation of machine vibration by measurements on non-rotating parts —. ISO MECHANICAL VIBRATION – EVALUATION OF MACHINE VIBRATION BY MEASUREMENTS ON NON-ROTATING PARTS – PART 4: GAS. ISO Mechanical vibration – Evaluation of machine vibration by measurements on non-rotating parts – Part 4: Gas turbine sets with fluid-film bearings.
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Alternatively, the measured peak vibration values may be divided by 2 and judged against the r. In general, if an ALARM situation occurs, operation can continue for a period whilst investigations are carried out to identify the reason for the change in vibration and define any remedial action.
Pages with related products. Figure 1 — Measurement points on main bearings 4 Evaluation ISO provides a general description of the two evaluation criteria used to assess vibration severity on various is of machines. Withoutabox Submit to Film Festivals.
Standards Subsctiption may be the perfect solution. This includes gas turbines coupled to other rotating machinery either directly or through a gearbox. Each 10816- body interested in a subject for which a technical committee has been established has the right to be represented on that committee. The values used will, therefore, generally be the same for jso machines of similar design and would not normally be related to the steady-state baseline value used for setting ALARMS.
Explore the Home Gift Guide. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting.
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The following are excluded from this part of ISO The locations of vibration measurements shall be such that they provide adequate sensitivity to the dynamic forces of the machine but are not unduly influenced by external sources such as combustion vibration, gear mesh vibration, etc. Thus, when the criteria of this part of ISO and those of ISO are both applied in the assessment of machine vibration, independent shaft and bearing housing or pedestal vibration measurements should be made.
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Add to Alert PDF. Click here 1086-4 sign up. Different operational ALARM settings may then exist for different bearings on the machine, reflecting differences in dynamic loading and bearing support stiffnesses. This part of ISO is not applicable to the following: Large land-based steam turbine generator sets in excess of 50 MW — Part 3: Although the transducers may be placed at any angular location on the bearing housings or pedestals, vertical and horizontal directions are usually preferred.
When Criterion II is applied, the vibration measurements being compared shall be taken at the same transducer location and orientation, and under approximately the same steady-state operating conditions of speed, load, and thermal condition.
BS ISO 10816-4:2009+A1:2017
Large land-based steam turbine generator sets in excess of 50 MW. I’d like to read this book on Isk Don’t have a Kindle? Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher.
The criteria of this part of ISO are applicable to the 10816- measured on the bearing housings or pedestals of gas turbines and driven equipment using fluid-film bearings. The values chosen will normally be set relative to a baseline value determined from experience for the measurement position or direction for that particular machine.
You can download and open this file to your own computer but DRM prevents opening this file on another computer, including a networked server. Shopbop Designer Kso Brands. The operational ALARM settings for a new machine for which there is no prior knowledge of bearing vibration is normally set within zone C.
In such cases, it is normally necessary for the manufacturer to explain the reasons for this and, in particular, to confirm that the machine will not be endangered by operating with higher vibration values.