Vibroacoustic railway bridge healthiness monitoring apparatus, system and method

Abstract

The invention provides a vibroacoustic railway bridge healthiness monitoring apparatus, system and method. The monitoring apparatus comprises a sound collecting device and a communication treatment device, wherein the sound collecting device is used for collecting a sound spectrum generated in the vibration impact of a rail bridge by a wheel excitation source, and the communication treatment device is used for transmitting the sound spectrum; and the bridge healthiness monitoring system comprises the monitoring device and a cloud calculating server, and the sound collecting device is used for collecting the sound spectrum generated in the vibration impact of a rail bridge by the wheel excitation source and sending a signal to the cloud calculating server in real time. The cloud calculating server is used for storing and analyzing the sound spectrum; and the bridge healthiness monitoring method statistically analyzes the deformation of a bridge structure by using the transmission spectrum characteristics of sounds in the bridge structure on the basis of a sound monitoring and fault diagnosing technology and evaluates the bridge healthiness condition. The apparatus, the system and the method have the advantages of simplification of onsite bridge monitoring devices, engineering cost saving, and reduction of the maintenance workload of an online monitoring system through intensive management.

Description

technical field [0001] The invention mainly relates to the field of monitoring devices, in particular to an acoustic vibration type track bridge health monitoring device, system and method. Background technique [0002] Acoustic-vibration monitoring technology is a method of stimulating the object to be inspected to generate vibration (sound waves), and judging the quality of the object to be monitored from the measurement results of the vibration and sound waves. Acoustic and vibration measurement and monitoring, as an important branch of fault diagnosis (non-destructive monitoring technology), grew up along with equipment fault diagnosis, and developed from the initial simple diagnosis (such as knock monitoring) to the current sophisticated diagnosis and predictive maintenance; Vibration and noise reduction is also developing from passive control to active control. Acoustic vibration monitoring technology is simple, fast, and cheap, and its monitoring process is fully aut...

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Problems solved by technology

[0005] The above search results show that although there are certain research achievements in the field of acoustic vibration technology and bridge monitoring, there is still no one to develop a set of automatic monitoring devices and methods suitable for bridge structure monitoring by using the characteristics of acoustic vibration technology combined with bridge monitoring requirements. involve

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