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### Research on Safety Signs of Railway Stations Based on Bernoulli Effect and Fluid Dynamics Principles

Zimeng Gao 1

#### Affiliation(s)

1 School of Electronic and Information Engineering, University of Science and Technology Liaoning, Anshan, 114051, China

Zimeng Gao

#### ABSTRACT

The purpose of this study is to discuss the necessity and rationality of setting safety signs at train stations through mathematical models, and to analyze the aerodynamic impact of trains passing at full speed on platform personnel. By utilizing the Bernoulli effect and principles of fluid dynamics, combined with factors such as human weight, volume, and distance, a mathematical model is established to quantify the "suction" or "thrust" experienced by platform personnel; At the same time, the basis for setting safety line signs was further explored, and a model was established to describe the relationship between safety distance and factors such as train speed, weight, and volume; Analyze the impact of different factors on the setting of safety signs, and based on existing railway technology management procedures, propose some optimization suggestions to ensure the safety of railway platforms. Firstly, a model I based on the Bernoulli effect was established. Firstly, use the Bernoulli equation to describe the distribution of air velocity and pressure during train passage. Secondly, the thrust received by personnel on the platform at different distances was calculated, and based on the results of Model I, the thrust values under various conditions were obtained through numerical simulation algorithms and MATLAB software, further establishing a safety line setting model. Based on parameters such as train speed, personnel weight, and volume, the basis for setting safety markings was quantitatively analyzed, and the safety distances that should be set at different train speeds were derived.

#### KEYWORDS

Bernoulli effect, Fluid dynamics, Numerical simulation, Safety sign setting

#### CITE THIS PAPER

Zimeng Gao, Research on Safety Signs of Railway Stations Based on Bernoulli Effect and Fluid Dynamics Principles. Journal of Engineering Mechanics and Machinery (2023) Vol. 8: 97-103. DOI: http://dx.doi.org/10.23977/jemm.2023.080413.

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