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.
|Published (Last):||4 February 2017|
|PDF File Size:||16.7 Mb|
|ePub File Size:||18.9 Mb|
|Price:||Free* [*Free Regsitration Required]|
This includes gas turbines directly coupled to other prime movers such as steam turbines, but the evaluation of the steam turbine vibration is not dealt with in this part of ISO see the following exclusion list. Explore the Home Gift Guide.
ISO | Jesús arg –
It should be noted, however, that the vibration of a gas turbine can be influenced by its mounting system and coupling arrangement to driven machines. Although the transducers may be placed at any angular location on 10861-4 bearing housings or pedestals, vertical and horizontal directions are usually preferred.
Your Alert Profile lists the documents that will be monitored. Diagnostic investigations should then be initiated to ascertain the reason for the change and to determine what further actions are appropriate. There may, however, be differences for machines of different design and it is not possible to give clear guidelines for absolute TRIP values. Share your thoughts with other customers.
Get to Know Us. Thus, when the criteria of this part of ISO and those of ISO are both applied in the assessment of machine isp, independent shaft and bearing housing or pedestal vibration measurements should be made. 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.
BS ISO 10816-4:2009+A1:2017
Aircraft derivative gas turbines including gas turbines with dynamic properties similar to those of aircraft derivatives are excluded from ios part of ISO Large land-based steam turbine generator sets in excess of 50 MW — Part 3: Machines with vibration within this zone are normally considered unsatisfactory for long-term continuous operation.
Enter the email address you signed up with and we’ll email you a reset link. ComiXology Thousands of Digital Comics. For gas turbines, the measurement system used shall be capable of measuring broad-band vibration over a frequency range from 10 Hz to at least six times the highest shaft rotational frequency.
General guidelines 3 Measurement procedures The measurement procedures and instrumentation shall comply with the general requirements of ISO and are as follows. Generally, the machine may be operated for a limited period in this condition until a suitable opportunity arises for remedial action.
Significant changes from the normal vibration magnitudes should be investigated so that a dangerous situation may be avoided. If the document is revised or amended, you will be notified by email. This standard is also available to be included in Standards Subscriptions.
Measurements at these locations characterize reasonably well the state of vibration. Need more than one copy? When axial vibration is 108164 on an axial thrust bearing, the severity may be judged using the same criteria as for radial vibration. The zone boundaries of table A. ISO consists of the following parts, under the general title Mechanical vibration — Evaluation of machine vibration by measurements on non-rotating parts: Standards Subscriptions from ANSI provides a money-saving, multi-user solution for accessing standards.
Learn more about Amazon Prime. It also includes any driven equipment not included in the exclusion list below. The following are excluded from this part of ISO This title may contain less than 24 pages of technical content. The maximum vibration magnitude observed at each bearing or pedestal is assessed against four evaluation zones established from international experience. Gas turbine driven sets excluding aircraft derivatives — Part 5: The vibration criteria provided in this part of ISO apply to heavy-duty gas turbine sets.
However, these values provide guidelines for isk that gross deficiencies or unrealistic requirements are avoided. Vibration magnitude This criterion is concerned with defining limits for absolute vibration magnitude consistent with acceptable dynamic loads on the bearings and acceptable vibration transmission into the environment through the support structure and foundation. After a period of machine operation, the customer may consider the option of changing the ALARM settings to reflect the typical steady baseline values of vibration at each 18016-4.
Click here to sign up. However, experience with a specific machine may prescribe a different value. This part of ISO encompasses machines which may have gears or rolling element bearings but does not address the evaluation of the condition of those gears or 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. Using the procedure described in 4. Where there is no established baseline for example with a new machine the initial ALARM setting should be based either on experience with 10186-4 similar machines or relative to agreed acceptance values.
Vibration of gears is iao addressed in ISO Since the data showed significant spread, the zone boundary values should be considered only as guidelines. Alternatively, the measured peak vibration values may be divided by 2 and judged against the r.
I’d like to read this book on Kindle Don’t have a Kindle? If the TRIP value is exceeded, immediate action should be taken to reduce the vibration or the machine should be shut down. In some cases, these changes would go undetected when using only broad-band vibration measurements see, for example, ISO This includes gas turbines directly coupled to other prime movers such as steam turbines, but the evaluation of the steam turbine vibration is not dealt with in this part of ISO see the following exclusion ieo.
Remember me on this computer. For gas turbine driven sets, it is common for the vibration to be predominantly at the running frequency of the machine. For gas turbine sets, it is also common to judge the vibration based on measurements taken on the rotating shafts.