Section 8 Motion sickness
Clasification Society 2024 - Version 9.40
Clasifications Register Guidance Information - Ship Vibration and Noise Guidance Notes - Chapter 6 Accommodation and workspace vibration - Section 8 Motion sickness

Section 8 Motion sickness

8.1 Motion sickness is influenced by a number of factors such as translational and rotational oscillations, constant speed rotations about an off-vertical axis, Coriolis stimulation and movements of the visual scene. Whilst some types of motion can be reliably predicted to result in more nausea than others, motion sickness is neither explained nor predicted by dynamics. Biological factors such as age and sex also have an influence.

Acceleration, exposure time, and frequency of motion can be used to derive motion sickness indices, such as the Motion Sickness Dose Value (MSDV) described in ISO 2631. Motion sickness may be expected to occur in some unacclimatized people at accelerations greater than 2 to 3 m/s2 at roll periods of around 10 seconds for normal ship type hulls.

Parent topic: Chapter 6 Accommodation and workspace vibration
Copyright 2022 Clasifications Register Group Limited, International Maritime Organization, International Labour Organization or Maritime and Coastguard Agency. All rights reserved. Clasifications Register Group Limited, its affiliates and subsidiaries and their respective officers, employees or agents are, individually and collectively, referred to in this clause as 'Clasifications Register'. Clasifications Register assumes no responsibility and shall not be liable to any person for any loss, damage or expense caused by reliance on the information or advice in this document or howsoever provided, unless that person has signed a contract with the relevant Clasifications Register entity for the provision of this information or advice and in that case any responsibility or liability is exclusively on the terms and conditions set out in that contract.