Mechanical vibration. Measurement of vibration on ships - Guidelines for measurement, evaluation and reporting of vibration with regard to habitability on passenger and merchant ships
Mechanical vibration. Measurement of vibration on ships - Guidelines for measurement, evaluation and reporting of vibration with regard to habitability on passenger and merchant ships
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Mechanical vibration. Measurement of vibration on ships - Guidelines for measurement, evaluation and reporting of vibration with regard to habitability on passenger and merchant ships

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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