ISO 20816-1:2016
Mechanical vibration — Measurement and evaluation of machine vibration — Part 1: General guidelines
Mechanical vibration — Measurement and evaluation of machine vibration — Part 1: General guidelines
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 34
- Дата публикации:
- 9 ноября 2016 г.
- Издание:
- ISO IS 20816 edition 1 version 1
- ICS:
- 17.160
ISO 20816-1:2016 establishes general conditions and procedures for the measurement and evaluation of vibration using measurements made on rotating, non-rotating and non-reciprocating parts of complete machines. It is applicable to measurements of both absolute and relative radial shaft vibration with regard to the monitoring of radial clearances, but excludes axial shaft vibration. The general evaluation criteria, which are presented in terms of both vibration magnitude and change of vibration, relate to both operational monitoring and acceptance testing. They have been provided primarily with regard to securing reliable, safe, long-term operation of the machine while minimizing adverse effects on associated equipment. Guidelines are also presented for setting operational limits. NOTE 1 The evaluation criteria for different classes of machinery will be included in other parts of ISO 20816 when they become available. In the meantime, guidelines are given in Clause 6. NOTE 2 The term "shaft vibration" is used throughout ISO 20816 because, in most cases, measurements are made on machine shafts. However, the ISO 20816 series is also applicable to measurements made on other rotating elements if such elements are found to be more suitable, provided that the guidelines are respected. For the purposes of ISO 20816, operational monitoring is considered to be those vibration measurements made during the normal operation of a machine. The ISO 20816 series permits the use of different measurement quantities and methods, provided that they are well-defined and their limitations are set out, so that the interpretation of the measurements is well-understood. The evaluation criteria relate only to the vibration produced by the machine itself and not the vibration transmitted to it from outside. ISO 20816-1:2016 does not include consideration of torsional vibration. NOTE 3 For torsional vibration, see, for example, ISO 3046‑5, ISO 22266‑1 or VDI 2039.
Abstract
Overview - What ISO 20816-1:2016 covers
ISO 20816-1:2016 - titled Mechanical vibration - Measurement and evaluation of machine vibration - Part 1: General guidelines - establishes general conditions, procedures and evaluation principles for measuring and assessing mechanical vibration of complete machines. It applies to measurements made on rotating and non-rotating (non-reciprocating) parts, and covers both absolute and relative radial shaft vibration (including monitoring of radial clearances). The standard excludes axial shaft vibration and does not address torsional vibration. Its guidance is targeted primarily at operational monitoring and acceptance testing, with recommendations for setting operational limits, alarm and trip levels, and interpreting changes in vibration over time.
Key technical topics and requirements
- Measurement scope: Broad-band vibration measurement on shafts, bearing housings and other suitable rotating elements; emphasis on well-defined measurement quantities and methods.
- Measurement quantities: Recognizes the three primary vibration quantities - displacement, velocity and acceleration - and explains their appropriate use and limitations.
- Types of measurements: Guidance on measurements taken on non-rotating parts, relative shaft vibration, and absolute shaft vibration (radial).
- Measuring positions and frequency range: Recommended positions on shafts and housings, and requirements for capturing the machine’s frequency spectrum.
- Instrumentation and mounting: References instrument requirements and accelerometer mounting best practices (see normative references).
- Evaluation criteria: General criteria presented in terms of vibration magnitude and change in vibration (Criterion I and II), for both steady operation and acceptance testing. Includes advice on setting operational limits, alarms and trips.
- Diagnostics: Informative annexes on bearing-problem detection techniques and vector analysis of vibration change help in root-cause analysis.
Practical applications and target users
ISO 20816-1 is essential for:
- Condition monitoring engineers and vibration analysts establishing routine monitoring programs.
- Maintenance and reliability teams setting alarm/trip thresholds and acceptance criteria for new or repaired machinery.
- OEMs and test laboratories conducting in-situ or test-facility vibration acceptance tests.
- Consultants performing diagnostic assessments of rotating machinery (pumps, turbines, compressors, electric machines).
Use cases include commissioning and acceptance testing, baseline vibration surveys, setting limit levels for online protection systems, and guiding diagnostic investigations into bearing or rotor issues.
Related standards
- ISO 2954 (instruments for measuring vibration severity)
- ISO 5348 (accelerometer mounting)
- ISO 10817-1 (relative/absolute sensing of radial vibration)
- For torsional vibration (not covered): ISO 3046-5, ISO 22266-1, VDI 2039
Keywords: ISO 20816-1, mechanical vibration, shaft vibration measurement, vibration evaluation, vibration monitoring, acceptance testing, rotating machinery.
Технические детали
- Технический комитет
- ISO/TC 108/SC 2 - Measurement and evaluation of mechanical vibration and shock as applied to machines, vehicles and structures
- SKU
- ISO 20816-1:2016
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