Is the standard ride comfort index an actual estimation of railway passenger comfort?

Palomares, E.; Morales, A.L.; Nieto, A.J.; Félix, M.; Chicharro, J.M.; Pintado, P.

doi:10.1080/00423114.2022.2148543

Cited by 4 publications

(1 citation statement)

References 11 publications

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“…Then, a statistical analysis is implemented considering the measurements from three different points (front, rear and middle car body) along the three directions. Recently, suggestions about improving the robustness of ride comfort assessment considering different measurement locations have been discussed [15]. For this reason, the proposed numerical assessment considers 33 locations distributed on the car body pavement (see Fig.…”

Section: Ride Comfort Assessment: Nmv Indexmentioning

confidence: 99%

Ride comfort assessment of high-speed rail vehicles: influence of yaw dampers installation angle

Isacchi,

Corsi,

Ripamonti

2023

Vib. proced.

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High-speed rail vehicles are equipped with yaw dampers to avoid the arising of hunting motion when running at high-speed. Although these suspension components provide a stabilizing effect on the vehicles, they also influence the ride comfort performances by affecting the accelerations perceived by the passengers. In this context, this paper aims to correlate the installation angle on the vertical plane of such suspension components on the ride comfort performances of a generic high-speed train. The proposed methodology is based on multibody simulations of a model with deformable car body. The modal behavior of the model is aligned to the typical mode shapes and natural frequencies reported in literature.

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Section: Ride Comfort Assessment: Nmv Indexmentioning

confidence: 99%

Ride comfort assessment of high-speed rail vehicles: influence of yaw dampers installation angle

Isacchi,

Corsi,

Ripamonti

2023

Vib. proced.

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Probability distributions for stochastic comfort in railway vehicles

Morales,

Palomares,

Nieto

et al. 2023

Vehicle System Dynamics

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On the implementation of hydraulic-interconnected-suspensions at the primary suspension stage of high-speed rail vehicles

Isacchi,

Ripamonti

2024

Proceedings of the Institution of Mechanical Engineers, Part F:

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In recent years, huge investments have been made to improve the dynamic performance of high-speed trains. Research into innovative suspension components has been part of the development of this transport system for decades. Innovative devices can allow rail vehicles to deal with the constantly increasing speed required by the global market. Among the most innovative suspension layouts proposed in railway dynamics in past years, limited attention has been given to Hydraulic Interconnected Suspensions (HIS). This layout is composed of two hydraulic cylinders with external hydraulic connections. Hydraulic Interconnected Suspensions allow promising tuning capabilities due to their ability to offer different responses based on the specific inputs given to the cylinders. This layout is rarely considered for rail vehicles, and the few previous works related to this topic considered the HIS layout to be applied at the secondary suspension stage. In this context, this paper proposes applying an HIS layout to the primary suspension stage of rail vehicles, in order to overcome the trade-offs between ride comfort, running safety and maximum car body displacement that need to be considered by bogie manufacturers when designing and optimising these mechanical systems. A nonlinear physical model of the HIS is proposed for co-simulation with a Multi-body (MB) model of a high-speed train. The improvement provided implementing an HIS at the primary suspension stage is then compared to similar enhancements that could be made when tuning and varying the standard suspension components of a bogie.

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Is the standard ride comfort index an actual estimation of railway passenger comfort?

Cited by 4 publications

References 11 publications

Ride comfort assessment of high-speed rail vehicles: influence of yaw dampers installation angle

Ride comfort assessment of high-speed rail vehicles: influence of yaw dampers installation angle

Probability distributions for stochastic comfort in railway vehicles

On the implementation of hydraulic-interconnected-suspensions at the primary suspension stage of high-speed rail vehicles

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