ISO 20283-5-2016 PDF

Full title and description

Mechanical vibration — Measurement of vibration on ships — Part 5: Guidelines for measurement, evaluation and reporting of vibration with regard to habitability on passenger and merchant ships. This part gives guidance for measuring, evaluating and reporting shipboard vibration as it affects habitability for persons on board, with recommended overall frequency-weighted r.m.s. values for different ship areas in the 1 Hz to 80 Hz range.

Abstract

ISO 20283-5:2016 provides guidelines on instrumentation, measurement procedure, analysis and reporting to assess vibration with regard to habitability on passenger and merchant ships (intended voyages of 24 hours or more). It gives frequency-weighted r.m.s. guideline values (1 Hz–80 Hz) and explains relationships to other human-exposure and ship-vibration standards.

General information

• Status: Published.
• Publication date: December 2016 (published 2 December 2016 / edition year 2016).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 17.160 (Vibrations, shock and vibration measurements); 47.020.80 (Accommodation spaces).
• Edition / version: Edition 1, 2016.
• Number of pages: 11 pages (ISO published text: 11 pages).

Scope

Applies to passenger and merchant ships with intended voyages of 24 hours or more and covers measurement in normally occupied spaces for the purpose of assessing habitability. The standard specifies instrumentation and measurement procedures, analysis requirements and reporting formats, and supplies guideline overall frequency-weighted r.m.s. vibration values in the 1 Hz to 80 Hz band. It notes that evaluation of low-frequency ship motion and motion sickness is addressed by ISO 2631‑1 and that global structural vibration is covered by ISO 20283‑2.

Key topics and requirements

• Instrumentation requirements: sensor types, mounting and calibration suitable for habitability measurements.
• Measurement locations and directions: guidance for selecting representative, normally occupied spaces and axes of measurement.
• Measurement conditions and procedures: recommended sea states, loading conditions and data-acquisition settings for repeatable results.
• Analysis and evaluation: frequency-weighting (W[m]) definitions, calculation of overall frequency-weighted r.m.s. values and comparison with guideline values.
• Reporting: required content and example report formats to ensure consistent presentation of results and conclusions.
• Relationship to human-exposure guidance: references to ISO 2631‑1 for low-frequency motion and motion-sickness evaluation.

Typical use and users

Used by ship designers, naval architects, marine engineers, shipyards, vibration test laboratories, classification societies and operators to assess and document onboard vibration affecting habitability (crew and passengers), to support design decisions, acceptance trials and habitability mitigation measures.

Related standards

Key related documents include other parts of the ISO 20283 series such as ISO 20283‑2 (measurement/evaluation of structural vibration), ISO 20283‑3 (pre-installation vibration measurement of shipboard equipment, including amendment), and ISO 20283‑4 (measurement and evaluation of propulsion machinery vibration). ISO 2631‑1 is referenced for human whole-body vibration and motion-sickness guidance. ISO 20283‑5 replaces/updates earlier guidance in ISO 6954:2000.

Keywords

mechanical vibration; ship vibration; habitability; vibration measurement; frequency-weighted r.m.s.; shipboard instrumentation; human exposure; ISO 20283; passenger ships; merchant ships.

FAQ

Q: What is this standard?

A: ISO 20283-5:2016 is Part 5 of the ISO 20283 series and provides guidelines for measurement, evaluation and reporting of vibration on ships specifically with regard to habitability for crew and passengers.

Q: What does it cover?

A: It covers instrumentation, measurement locations and procedures, analysis (including frequency-weighting and r.m.s. calculations) and reporting formats for assessing vibration in normally occupied spaces; guideline overall frequency-weighted r.m.s. values are given for the 1 Hz to 80 Hz range.

Q: Who typically uses it?

A: Marine engineers, ship designers and builders, vibration test laboratories, classification societies and ship operators use it for habitability assessments, sea-trial measurements and acceptance testing.

Q: Is it current or superseded?

A: ISO 20283-5:2016 is a published International Standard (edition 1, 2016). It supersedes earlier guidance given in ISO 6954:2000. Users should check national/industry bodies for any national adoptions or amendments.

Q: Is it part of a series?

A: Yes — it is Part 5 of the ISO 20283 series (other parts include guidance on structural vibration, equipment pre-installation measurements and propulsion machinery vibration). The series is prepared by ISO/TC 108/SC 2.

Q: What are the key keywords?

A: mechanical vibration; ship vibration; habitability; vibration measurement; frequency-weighted r.m.s.; human exposure; sea-trial reporting.