A case study on fatigue life assessment of an electric bus bodywork

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23210%2F24%3A43970396" target="_blank" >RIV/49777513:23210/24:43970396 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0142112323005418" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0142112323005418</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ijfatigue.2023.108040" target="_blank" >10.1016/j.ijfatigue.2023.108040</a>

Jazyk výsledku

angličtina

Název v původním jazyce

A case study on fatigue life assessment of an electric bus bodywork

Popis výsledku v původním jazyce

Bus bodywork requires a thorough assessment of strength and fatigue life. The rise of battery-powered electric buses in the market brings new challenges due to the weight of the battery containers affecting the dynamic characteristics of the vehicle and the stress on its bodywork and chassis frame. When a manufacturer decides to develop a conceptually new vehicle, it does not initially have the precise input information necessary to assess the strength and fatigue life of the vehicle body. In particular, information about the future operating loads must be more or less estimated at the design stage of the structure and refinement is possible only after measurements with a vehicle prototype. This paper focuses on the fatigue life evaluation of the bodywork of a new articulated electric (battery) bus. The results are confronted with previous experience from the development and testing of the bodyworks of diesel buses and trolleybuses. Experimentally determined and statistically evaluated S-N curves of structural nodes welded from thin-walled profiles and measured stress spectra were used to estimate the fatigue life using the hypotheses of accumulation of fatigue damage. The findings resulted in recommendations to improve the operational reliability of a particular vehicle and provided challenges for future research. However, it should be noted that some of the findings and conclusions presented in this paper relate exclusively to the bodyworks of urban public transport vehicles and not to long-distance passenger transport vehicles

Název v anglickém jazyce

A case study on fatigue life assessment of an electric bus bodywork

Popis výsledku anglicky

Bus bodywork requires a thorough assessment of strength and fatigue life. The rise of battery-powered electric buses in the market brings new challenges due to the weight of the battery containers affecting the dynamic characteristics of the vehicle and the stress on its bodywork and chassis frame. When a manufacturer decides to develop a conceptually new vehicle, it does not initially have the precise input information necessary to assess the strength and fatigue life of the vehicle body. In particular, information about the future operating loads must be more or less estimated at the design stage of the structure and refinement is possible only after measurements with a vehicle prototype. This paper focuses on the fatigue life evaluation of the bodywork of a new articulated electric (battery) bus. The results are confronted with previous experience from the development and testing of the bodyworks of diesel buses and trolleybuses. Experimentally determined and statistically evaluated S-N curves of structural nodes welded from thin-walled profiles and measured stress spectra were used to estimate the fatigue life using the hypotheses of accumulation of fatigue damage. The findings resulted in recommendations to improve the operational reliability of a particular vehicle and provided challenges for future research. However, it should be noted that some of the findings and conclusions presented in this paper relate exclusively to the bodyworks of urban public transport vehicles and not to long-distance passenger transport vehicles

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20301 - Mechanical engineering

Projekt

<a href="/cs/project/FW01010386" target="_blank" >FW01010386: Výzkum a vývoj kloubového elektrobusu</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

International Journal of Fatigue

ISSN

0142-1123

e-ISSN

1879-3452

Svazek periodika

179

Číslo periodika v rámci svazku

February 2024

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

12

Strana od-do

—

Kód UT WoS článku

001114434600001

EID výsledku v databázi Scopus

2-s2.0-85183746768