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Safety assessment of personal mobility devices with different wheel size based on their dynamic stability performance

Milan Paudel, Fook Fah Yap, Anil Bastola

International Journal of Sustainable Design, Volume: 3, Issue: 4, Start page: 227

Swansea University Author: Anil Bastola

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DOI (Published version): 10.1504/ijsdes.2020.112094

Abstract

There has been a rapidly growing trend in the use of small-wheeled personal mobility devices (PMDs) such as small-wheeled electric scooters and bicycles for urban mobility in many cities worldwide. However, it is a well-known fact that most of them do not ride as well as conventional big wheel bicyc...

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Published in: International Journal of Sustainable Design
ISSN: 1743-8284 1743-8292
Published: Inderscience Publishers 2020
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URI: https://cronfa.swan.ac.uk/Record/cronfa65768
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first_indexed 2024-04-27T08:19:13Z
last_indexed 2024-04-27T08:19:13Z
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spelling v2 65768 2024-03-05 Safety assessment of personal mobility devices with different wheel size based on their dynamic stability performance 6775d40c935b36b92058eb10d6454f1a Anil Bastola Anil Bastola true false 2024-03-05 MECH There has been a rapidly growing trend in the use of small-wheeled personal mobility devices (PMDs) such as small-wheeled electric scooters and bicycles for urban mobility in many cities worldwide. However, it is a well-known fact that most of them do not ride as well as conventional big wheel bicycles, and the ride is often described as 'twitchy', 'wobbly' and 'less stable'. A considerable number of casualties involve single-vehicle accidents which can be correlated to their dynamic stability performance. This paper relates the vehicle frame design with safety performance. By using a well-defined mathematical model, the dynamic stability of different personal mobility devices was compared. The research confirms the lesser stability in existing small wheel electric scooters and bicycles. However, the investigation has also found that the reason is not so much the size of the wheel, but the inadequacy of current design practice to properly account for the complex influence of wheel size on stability. Finally, a case study has been presented to illustrate that current designs of small wheel PMDs can be improved for better stability and safety. Journal Article International Journal of Sustainable Design 3 4 227 Inderscience Publishers 1743-8284 1743-8292 safety; stability; design improvement; personal mobility devices; PMDs 21 12 2020 2020-12-21 10.1504/ijsdes.2020.112094 COLLEGE NANME Mechanical Engineering COLLEGE CODE MECH Swansea University Other 2024-04-27T09:19:13.7757804 2024-03-05T22:12:18.9147696 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Mechanical Engineering Milan Paudel 1 Fook Fah Yap 2 Anil Bastola 3
title Safety assessment of personal mobility devices with different wheel size based on their dynamic stability performance
spellingShingle Safety assessment of personal mobility devices with different wheel size based on their dynamic stability performance
Anil Bastola
title_short Safety assessment of personal mobility devices with different wheel size based on their dynamic stability performance
title_full Safety assessment of personal mobility devices with different wheel size based on their dynamic stability performance
title_fullStr Safety assessment of personal mobility devices with different wheel size based on their dynamic stability performance
title_full_unstemmed Safety assessment of personal mobility devices with different wheel size based on their dynamic stability performance
title_sort Safety assessment of personal mobility devices with different wheel size based on their dynamic stability performance
author_id_str_mv 6775d40c935b36b92058eb10d6454f1a
author_id_fullname_str_mv 6775d40c935b36b92058eb10d6454f1a_***_Anil Bastola
author Anil Bastola
author2 Milan Paudel
Fook Fah Yap
Anil Bastola
format Journal article
container_title International Journal of Sustainable Design
container_volume 3
container_issue 4
container_start_page 227
publishDate 2020
institution Swansea University
issn 1743-8284
1743-8292
doi_str_mv 10.1504/ijsdes.2020.112094
publisher Inderscience Publishers
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Mechanical Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Mechanical Engineering
document_store_str 0
active_str 0
description There has been a rapidly growing trend in the use of small-wheeled personal mobility devices (PMDs) such as small-wheeled electric scooters and bicycles for urban mobility in many cities worldwide. However, it is a well-known fact that most of them do not ride as well as conventional big wheel bicycles, and the ride is often described as 'twitchy', 'wobbly' and 'less stable'. A considerable number of casualties involve single-vehicle accidents which can be correlated to their dynamic stability performance. This paper relates the vehicle frame design with safety performance. By using a well-defined mathematical model, the dynamic stability of different personal mobility devices was compared. The research confirms the lesser stability in existing small wheel electric scooters and bicycles. However, the investigation has also found that the reason is not so much the size of the wheel, but the inadequacy of current design practice to properly account for the complex influence of wheel size on stability. Finally, a case study has been presented to illustrate that current designs of small wheel PMDs can be improved for better stability and safety.
published_date 2020-12-21T09:19:13Z
_version_ 1797475221715812352
score 11.01438

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