ISO 9043:2008

Mopeds — Measurement method for moments of inertia

ISO 9043:2008 specifies a measuring method for determining the moments of inertia of the moped and of the moped/rider combination. It applies to two-wheeled mopeds. Other measuring methods can be used if it is demonstrated that the results are equivalent. Measurement results obtained exclusively by the method described in ISO 9043:2008 cannot be used for an evaluation of vehicle stability because they deal with only one aspect of this very complex phenomenon.

Cyclomoteurs — Méthode de mesure des moments d'inertie

General Information

• Status: Published
• Publication Date: 20-Feb-2008
• ICS: 43.140 - Motorcycles and mopeds
• Technical Committee: ISO/TC 22/SC 38 - Motorcycles and mopeds
• Drafting Committee: ISO/TC 22/SC 38 - Motorcycles and mopeds
• Current Stage: 9093 - International Standard confirmed
• Completion Date: 18-Oct-2023

Relations

• Revises: ISO 9043:1991 - Mopeds — Measurement method for moments of inertia
• Effective Date: 15-Apr-2008

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 9043
Second edition
2008-02-15

Mopeds — Measurement method for
moments of inertia
Cyclomoteurs — Méthode de mesure des moments d'inertie




Reference number
ISO 9043:2008(E)
©
ISO 2008

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ISO 9043:2008(E)
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ii © ISO 2008 – All rights reserved

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ISO 9043:2008(E)
Contents Page
Foreword. iv
Introduction . v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions. 1
4 Measurement conditions . 2
5 Measuring instruments . 2
6 Measuring procedure . 3
6.1 Measurement of location of centre of gravity.3
6.2 Roll moment of inertia about x-axis (physical pendulum principle) . 3
6.3 Pitch moment of inertia about y-axis (physical pendulum principle) . 7
6.4 Yaw moment of inertia about z-axis (bifilar pendulum principle). 11
7 Test results. 16
Annex A (normative) Format for measurement results. 17

© ISO 2008 – All rights reserved iii

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ISO 9043:2008(E)
Foreword
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