Study on the Fracture Failure Problem of the Height Valve Regulating Rod CRRC Nanjing Puzhen Company, Limited

Format:

Book

Conference/Event

Author/Creator:

Wang, Chao, author.

Contributor:

Pan, Minkai

Yang, Chen

Conference Name:

2025 5th International Conference on Smart City Engineering and Public Transportation (SCEPT2025) (2025-03-28 : Beijing, China)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2025

Summary:

The height valve adjusting rod is an important part of the suspension system, used to adjust the height of the train to adapt to the train through the curve, slope or uneven track when the height valve adjusting rod fracture failure, the train's suspension system can not be adjusted normally, may lead to the height of the train is too high or too low, affecting the stability of the train and the driving safety. In this paper, an underground vehicle height valve adjusting rod fracture failure of the problem was studied and analysed, the specific conclusions are as follows: height valve adjusting rod there are two main vibration frequency, 60Hz and 340Hz, 60Hz main frequency has always existed, and 340Hz vibration frequency are present in part of the interval, but also caused by the vehicle vibration of the main reason for the local larger; height valve adjusting rod stress there is also a significant vibration The main frequency of 340Hz, similar to the vibration characteristics of the vibration response, the main frequency of vibration only exists in part of the interval, and is the main reason for the stress is locally large; comprehensive consideration of the vehicle vibration state and stress level, 340Hz rail grinding frequency is the main reason for the height valve regulator vibration level and the stress level is obviously increased, but also led to the failure of the height valve regulator; can be achieved by grinding rail Or improve the structure of the crossbar so that the inherent modal frequency of the crossbar is far away from the wave abrasion frequency, which can provide a certain reference significance for other urban rail vehicle projects to solve such problems

Notes:

Vendor supplied data

Publisher Number:

2025-99-0075

Access Restriction:

Restricted for use by site license