Abstract
This paper presents the results of the investigation of the noise characteristics of the dual-voltage mainline electric locomotive. The study identified noise levels generated by the locomotive equipment that violate regulations. The analysis of points, where the noise is above regulations, indicated the primary source of the elevated noise is the operation of the traction transformer. We proposed installing a noise barrier below the locomotive body to reduce noise and bring the locomotive in compliance with the noise regulations. This solution allowed reducing the locomotive noise and ensure its compliance with regulations.
Highlights
On Russian railways, most of the cargo and passengers are carried by electric locomotives
Compared to diesel-electric and other autonomous locomotives, electric locomotives produce less noise. Studies show that these noise levels sometimes do not comply with regulations
The analysis of the noise level distribution revealed that the noise field generated by locomotive equipment is non-uniform
Summary
On Russian railways, most of the cargo and passengers are carried by electric locomotives. The causal link between noise and hazards has not yet been established, noise is considered as a potential factor of risk of industrial traumas or, at least, the factor contributing to human errors. The reasons for this are as follows: 1) Noise drowns out alarm signals; 2) Noise disrupts communication and masks hazard alarms; 3) Noise distracts the drivers and reduces his/her concentration. In conditions of industrial noise and vibration, all train drivers get medium or severe sensorineural hearing loss after 18 years of work [2]. Research aiming to study noise characteristics and improve the noise protection of electric locomotives is relevant
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