Road Loads for Durability Analysis using Virtual Iterations

Vemuri, Achyut; Talekar, Nitin; Avutapalli, Bhaskar

doi:10.4271/2018-01-0567

Cited by 4 publications

(1 citation statement)

References 1 publication

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“…In this virtual iteration, the test data of accelerations were taken as the target signal [ 23 , 24 ]. The displacement actuators of the wheelset were taken as the reverse object.…”

Section: Load Reverse Engineering Based On Virtual Iteration Of Rigid...mentioning

confidence: 99%

Research on Load Reverse Engineering and Vibration Fatigue Analysis Technology of Rapid Box Wagon

Fang

Zhang

et al. 2022

Materials

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The overall stiffness and modal frequency of the car body of a rapid box car are reduced by the design of the full-side open movable side door structure. The vibration fatigue performance of the welded structure in this car body needs to be verified. The rigid-flexible coupling model of the rapid box wagon was established first, and the model was verified by modal test data. By the application of the virtual iteration method on this model, the displacement excitation loads of this vehicle were acquired. The effectiveness of the load reverse obtaining technology was verified through the comparison between calculated data and the experimental data. Based on the rigid-flexible coupling model and the load obtained by reverse engineering, the fatigue life of the welded structure in the car body was evaluated through the modal structural stress method. The calculated results show that the car body structure obtains obvious modal vibration, which leads to short fatigue life in several weld lines. According to the application requirements of this wagon, the local improvement scheme was proposed, and the effect of the improvement program was evaluated. In this paper, a new fatigue evaluation technology based on the load reverse method of test data was proposed, which provides a theoretical basis for the structural design and program improvement of railway vehicles.

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“…In this virtual iteration, the test data of accelerations were taken as the target signal [ 23 , 24 ]. The displacement actuators of the wheelset were taken as the reverse object.…”

Section: Load Reverse Engineering Based On Virtual Iteration Of Rigid...mentioning

confidence: 99%

Research on Load Reverse Engineering and Vibration Fatigue Analysis Technology of Rapid Box Wagon

Fang

Zhang

et al. 2022

Materials

View full text Add to dashboard Cite

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Probabilistic characterization for durability assessment under various road strain loads

Abdullah,

Singh,

Ariffin

et al. 2024

J Mech Sci Technol

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Determining the structural life of an electric vehicle battery from road loads

Düzgün

Şendur

2022

Materials Testing

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Although the electrical system is important in the development of electric vehicles, the durability of the battery system against mechanical loads and the performance of the battery against shock reactions are just as important. The objective of this study is to develop a methodology to determine the structural life of the battery of the C-platform sports utility vehicle (SUV). For this purpose, a power spectral density (PSD) durability test profile is generated and compared to battery test standards such as ISO 6469:2019, AK-LH 5.21 and SAE J2380. Analytical Virtual Proving Ground (VPG), a multibody dynamics simulation model, is also developed and correlated to test data. The results show that FDS values for AK-LH is higher than the fatigue damage of the collected vehicle data, while the FDS results for ISO standard are lower compared to the vehicle data. The results also indicate that the loads in the longitudinal (x-direction) and lateral (y-direction) directions are different. Therefore, loads of different amplitudes should be used for these directions, contrary to SAE J2380 and USABC standards. Finally, it is concluded that the VPG model can be used for determining the fatigue life when there is no test data, thanks to its high accuracy.

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Road Loads for Durability Analysis using Virtual Iterations

Cited by 4 publications

References 1 publication

Research on Load Reverse Engineering and Vibration Fatigue Analysis Technology of Rapid Box Wagon

Research on Load Reverse Engineering and Vibration Fatigue Analysis Technology of Rapid Box Wagon

Probabilistic characterization for durability assessment under various road strain loads

Determining the structural life of an electric vehicle battery from road loads

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