What is ISO 20283-5 - Vibration on ships about?
ISO 20283 is a series of international standards on mechanical vibration that discusses the best procedures and specifications required for measuring vibration on ships. ISO 20283-5 is the fifth part of a series of documents on the measurement of vibration on ships.
ISO 20283-5 gives guidelines for the measurement, evaluation, and reporting of vibration with regard to habitability for all persons on-board passenger and merchant ships, especially for the crew. Overall frequency-weighted r.m.s. vibration values in the frequency range 1 Hz to 80 Hz are given as guideline values for different areas on ships.
ISO 20283-5 is applicable to passenger and merchant ships with intended voyages of 24 h or more. ISO 20283-5 specifies requirements for the instrumentation and the procedure of measurement in normally occupied spaces. ISO 20283-5 also contains analysis specifications and guidelines for the evaluation of ship vibration with respect to habitability.
The evaluation of low-frequency ship motion which can result in motion sickness is covered by ISO 2631-1.
Who is ISO 20283-5 - Vibration on ships for?
ISO 20283-5 on measurement of vibration on ships is relevant to:
- Marine engineer
- Mechanical engineer
- Shipping industry
Why should you use ISO 20283-5 - Vibration on ships?
Shipboard vibration that interferes with duties or reduces comfort is objectionable and often results in adverse comments from crew and passengers. To quantify this vibration, ISO 20283-5 gives guidelines for the measurement, evaluation, and reporting of habitability for all persons on board, especially for the crew.
ISO 20283-5 provides guidance on instrumentation, measurement locations and directions, measurement conditions, measurement procedure, evaluation, test report.
Vibration data acquired in accordance with ISO 20283-5 are also useful for
- Comparison with ship specifications,
- Comparison with other ships, and
- Further development and improvement of vibration regulations.
What’s changed since the last update?
BS ISO 20283-5:2016 supersedes BS ISO 6954:2000 which is now withdrawn.
This first edition of ISO 20283-5 cancels and replaces ISO 6954:2000, which has been technically revised with the following changes:
- Crew and passenger spaces were clearly defined
- Measurement conditions also include dynamic positioning (dp) mode
- Guideline values were changed from pairs of lower and upper values representing the range of commonly accepted vibration magnitude to just one maximum value. This gives a clearer indication of when this document is referred to in commercial contracts or similar. The actual guideline values are somewhat severer accounting for the technical progress made
