Prediction for Vibration Response of Railway Vehicle Air-conditioning Structure Based on Constraint Force
Journal Title: Urban Mass Transit - Year 2024, Vol 27, Issue 5
Abstract
Objective The air-conditioning unit, as an essential equipment for passenger comfort regulation in vehicles, generates vibration from the compressor and fan during normal cooling operation. Excessive vibration can lead to internal structural vibration and noise in the vehicle, thereby affecting passenger comfort. Therefore, it is necessary to study the vibration response of the air-conditioning structure in railway vehicles. Method A model based on the theory of constraint force is established. Finite element simulation is used to predict the structural vibration and noise that may occur during the design phase of vehicle air conditioning. Various operating conditions are tested to reduce vibration and noise after the assembly of the vehicle air conditioning unit. Result & Conclusion Through simulation methods, the vibration response of air-conditioning unit under the excitation of the compressor and fan can be effectively predicted, thereby reducing vibration issues inside the vehicle after the installation of the air-conditioning unit.
Authors and Affiliations
Xiaohe JIA, Ruigang ZHANG, Xuwei FENG
Keywords
Related Articles
- EP ID EP735616
- DOI 10.16037/j.1007-869x.2024.05.013
- Views 39
- Downloads 0
Evaluation of Train Holding Strategy Based on Passenger Service Level and Safety in Urban Rail Transit
[Objective] Holding train is a train operation scheme often used in urban rail transit under the condition of long initial delay. In order to evaluate the rationality of the scheme, it is necessary to build an evaluation...
Simulation Analysis of Electromagnetic Interference Effects of AC Traction Metro Tunnels on Oil and Gas Pipelines
［Objective］ Currently, several cities in China are planning 25 kV AC (alternating current) power supply metro lines, inevitably there will be paralled sections of oillgas pipelines run parallel to metro tunnels. During...
Analysis and Implications of Tram Line Network Planning Characteristics in Brunswick, Germany
[Objective] Tram network is the only urban rail transit system in Brunswick, Germany, serving as the backbone of the city′s public transportation system. Summarizing the key features of the expansion project planning pha...
Intelligent Health Management System for Rail Transit Signaling System Power Supply
Objective The dual-bus and dual-interruptible power supply (UPS) architecture in rail transit signaling system power supply enhances the system redundancy but does not effectively reduce component failure rates. To impro...
Research and Application of Intelligent Management Technology for Metro Train Passenger Compartment Side Doors
［Objective］ As a critical system consisting of metro vehicles, the passenger compartment side door (shorten as PCSD) presents peculiarities of high failure rates and significant maintenance demands. To enhance their op...