Nowadays, the urban railway transportation system is adopted in developing countries due to its efficient, cost-effective and also its environmentally friendly transport system. Based on this and other advantage of urban light railway, Our country Ethiopia constructed this by invest a lot of money with the coverage distance of around 31.98 km. Since it start operation, it carries a lot of passengers which is more than the designed loading capacity of the light rail way. Such kind of loading condition leads the vehicle suspension system to deflect and the body to lower down to the rail. To identify & show the effect of the unacceptable load and dynamic analysis with multi-body simulation the MSC ADAMS is used. To do this the paper starts by collecting the actual passenger flow data from Addis Ababa Light Rail transit service and analysis using different loading conditions. Due to dynamic analysis on Adams we get high deflection of secondary suspension of 35mm when maximum unacceptable load applies. To minimize the effect a simple PID controller is designed. That’s changing passive system to semi active by using hydraulic actuator Then based on the result and by taking unacceptable level of deflection a simple PID (Proportional Integral derivative) controller is designed in order to decrease the effect. Then the PID controller modelling simulation is done using step response, and results shows that the PID controllers can effectively control the deflection of suspension system by combining proportional, derivative and integral gains, this research develop the PID controller with Kp=94.84 Kd=0.7 and Ki=13.63 that yields the desired response of the system with the settling time of 5s
A Study on The Effect of Train Overload in The Suspension system & Design Pip Controller for Suppressing the Effect (Case of Addis Ababa Light Rail
2022-03-04
doi:10.20372/nadre/19634
Hochschulschrift
Elektronische Ressource
Englisch
DDC: | 629 |
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