Case Study on Rail Train-Induced Vibration Reduction at the Metro Depot by Using the Open Trench

2020 ◽  
pp. 667-678
Author(s):  
Ziyu Tao ◽  
Yimin Wang ◽  
Yekai Chen ◽  
Chao Zou
Keyword(s):  
Vibration Reduction ◽  
Open Trench ◽  
Train Induced Vibration

Effects of Open Trench Dimension on Screening Effectiveness for High Speed Train Induced Vibration

2012 ◽  
Vol 256-259 ◽  
pp. 1187-1190 ◽  
Author(s):  
Pei Hsun Tsai
Keyword(s):  
Boundary Element Method ◽  
Time Domain ◽  
High Speed ◽  
Vibration Reduction ◽  
High Speed Train ◽  
Optimum Configuration ◽  
Maximum Reduction ◽  
Open Trench ◽  
Screening Effectiveness ◽  
Trench Width

2D boundary element method in time domain is used to investigate the screening effectiveness of open trenches on reducing vibration generated by a high speed train in this study. The parameter used in the study is the configurations of the trench. In order to evaluate the screening effectiveness of a wave barrier, a reduction of dB value is defined and used in this study. The maximum reduction of dB values is about 25 dB when an open trench is used as a wave barrier. The depth of open trench is a main influential parameter of screening effectiveness. The deeper the open trench, the better vibration reduction. The screening effectiveness increases slightly due to the increase of trench width. Current study facilitates the basics for the optimum configuration of the open trench as the wave barrier for reducing vibration.

scholarly journals Study on Vibration Reduction Method for a Subway Station in Soft Ground

2017 ◽  
Vol 2017 ◽  
pp. 1-9 ◽  
Author(s):  
Xian-Feng Ma ◽  
Ning-Ning Feng ◽  
Guo-Bo Wang ◽  
Xu Fang
Keyword(s):  
Urban Areas ◽  
Rapid Development ◽  
Vibration Reduction ◽  
Subway Station ◽  
Soft Ground ◽  
Environment Impact ◽  
Adjacent Structures ◽  
Vibration Attenuation ◽  
Materials Used

With the rapid development of metro system in urban areas, vibration and its impact on adjacent structures caused by metro operation have drawn much attention of researches and worries relating to it have risen. This paper analyzed the vibration attenuation and the environment impact by a case study of a subway station in soft ground with adjacent laboratory building. A method of setting a compound separation barrier surrounding the station is checked and different materials used in the barrier have been tried and tested through numerical analysis. Key parameters of the material and the effects of vibration reduction are studied with the purpose that similar methodology and findings can be referenced in future practices.

Numerical modeling of train-induced vibration of nearby multi-story building: A case study

2015 ◽  
Vol 20 (5) ◽  
pp. 1701-1713 ◽  
Author(s):  
Saeed Hesami ◽  
Saeed Ahmadi ◽  
Abbasali Taghavi Ghalesari
Keyword(s):  
Numerical Modeling ◽  
Story Building ◽  
Train Induced Vibration

Vibration Reduction of Juicer: A Case Study

2015 ◽  
Vol 46 (8) ◽  
pp. 30-36
Author(s):  
Anand Parey
Keyword(s):  
Vibration Reduction

Vibration Reduction by Optimal Design of Powertrain Mounting System of Heavy Truck Based on SQP Method

2012 ◽  
Vol 625 ◽  
pp. 121-124
Author(s):  
Hui Jing ◽  
Cong Li ◽  
Fu Yun Liu ◽  
Bing Kuang
Keyword(s):  
Optimal Design ◽  
Quadratic Programming ◽  
Vibration Control ◽  
Sequential Quadratic Programming ◽  
Optimization Technique ◽  
Vibration Reduction ◽  
Optimization Techniques ◽  
Sqp Method ◽  
Heavy Truck

Heavy truck needs to use the vibration reduction technology to improve its quality. Nowadays, it is a useful and effective way for vibration reduction that by employing the proper Powertrain Mounting Systems (PMS) to reduce the vibration. One useful method to develop more effective mounting systems is through optimization techniques. Sequential Quadratic Programming (SQP) is an effective optimization technique. In this paper, design optimization of powertrain mounting system based on SQP method for vibration control is presented. The optimization objective is to find the highest decoupling ratio of the each mount while selecting the stiffness and orientations of individual mount. The constraints are imposed to keep the desired decoupled ratio in each orientation and the frequency corresponding to the decoupled ratio. A case study is given to validate the proposed method. The result shows that the value of optimized system, such as decoupling ratio, is improved significantly. Therefore, the method proposed in this paper is effective for the optimization of powertrain mounting system.

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