scholarly journals Impact of electric locomotive traction of the passenger vehicle Ride quality in longitudinal train dynamics in the context of Indian railways

2017 ◽  
Vol 18 (2) ◽  
pp. 222 ◽  
Author(s):  
Sunil Kumar Sharma ◽  
Anil Kumar
Keyword(s):  
Ride Quality ◽  
Passenger Vehicle ◽  
Electric Locomotive ◽  
Train Dynamics

Evaluation of Passenger Ride Comfort of Indian Rail and Road Vehicles with ISO 2631-1 Standards Part 1 - Mathematical Modelling

2016 ◽  
Vol 8 (1) ◽  
Author(s):  
R.C. Sharma
Keyword(s):  
Mathematical Modelling ◽  
Ride Comfort ◽  
Dominant Factor ◽  
Ride Quality ◽  
Passenger Vehicle ◽  
Performance Indices ◽  
Road Vehicles ◽  
Rail Vehicles ◽  
Indian Railway ◽  
Iso 2631

Ride quality and ride comfort are the most important performance indices of road or rail vehicles and is affected by various factors, such as vibrations, acoustics, smell, temperature, visual stimuli, humidity and seat design. Among these vibration is a dominant factor that influences the performance indices the most. In this work the coupled vertical-lateral mathematical models of Indian rail and road vehicles have been formulated using Lagrangian. The roadway vehicles considered for this analysis are three wheel and light four wheel Indian passenger vehicle. The rail vehicles considered for this analysis are General sleeper ICF coach of Indian railway.

Multibody analysis of longitudinal train dynamics on the passenger ride performance due to brake application

2018 ◽  
Vol 233 (2) ◽  
pp. 266-279 ◽  
Author(s):  
Sunil Kumar Sharma
Keyword(s):  
Research Design ◽  
Ride Quality ◽  
New Delhi ◽  
Multibody Model ◽  
Emergency Braking ◽  
Express Train ◽  
Brake Application ◽  
Train Dynamics ◽  
The Mathematical Model ◽  
Universal Mechanism

In this paper, longitudinal train dynamics and coupler forces were modelled based on experimental results of Research Design and Standard Organisation and from the available literature. The model was solved numerically in MATLAB. Moreover, a multibody model was developed in Universal Mechanism software considering a locomotive and two coaches that were validated with the mathematical model by comparing acceleration responses of locomotives and coaches running at 150 km/h and then applying emergency braking. The validated model in the Universal Mechanism software was extended and used for additional study. For the case study, the Rajdhani Express train was considered running at its maximum operational speed of 160 km/h with track gradient of New Delhi and Agra Cantt station. The performance of the rail vehicle in five braking phases was evaluated. The maximum compression force in coupler increased after the application of each brake phase. Moreover, the maximum compressive coupler force of 149 t was experienced at the third quarter of the train. However, the ride quality and comfort were within the satisfactory range prescribed by Research Design and Standard Organisation.

Tire Vibration Modes and Effects on Vehicle Ride Quality

1993 ◽  
Vol 21 (1) ◽  
pp. 23-39 ◽  
Author(s):  
R. W. Scavuzzo ◽  
T. R. Richards ◽  
L. T. Charek
Keyword(s):  
Finite Element ◽  
Finite Element Modeling ◽  
Operating Conditions ◽  
Modal Testing ◽  
Ride Quality ◽  
Vibration Modes ◽  
Inflation Pressure ◽  
Passenger Cars ◽  
Element Modeling ◽  
Road Surfaces

Abstract Tire vibration modes are known to play a key role in vehicle ride, for applications ranging from passenger cars to earthmover equipment. Inputs to the tire such as discrete impacts (harshness), rough road surfaces, tire nonuniformities, and tread patterns can potentially excite tire vibration modes. Many parameters affect the frequency of tire vibration modes: tire size, tire construction, inflation pressure, and operating conditions such as speed, load, and temperature. This paper discusses the influence of these parameters on tire vibration modes and describes how these tire modes influence vehicle ride quality. Results from both finite element modeling and modal testing are discussed.

Selection of commercially available alternative passenger vehicle in automotive environment

2020 ◽  
Vol 3 (1) ◽  
Author(s):  
Tapas Biswas ◽  
◽  
Prasenjit Chatterjee ◽  
Bikash Choudhuri ◽  
◽  
...  
Keyword(s):  
Passenger Vehicle ◽  
Selection Of

INVESTMENTS IN THE LOCOMOTIVE COMPLEX INFRASTRUCTURE. INFRASTRUCTURE NEEDS PLANS AND FORECASTS

2020 ◽  
Vol 1 (4) ◽  
pp. 106-110
Author(s):  
A. G. YEROYAN ◽  
Keyword(s):  
Significant Role ◽  
Rolling Stock ◽  
Infrastructure Development ◽  
Electric Locomotive ◽  
Maintenance And Repair ◽  
Technological Readiness ◽  
Railway Industry ◽  
Locomotive Repair

In connection with the prospects for the development of the railway industry until 2030, a significant role in improving the technological readiness of maintenance and repair of traction rolling stock belongs to diesel, electric locomotive repair and service depots. The article considers the main directions of development and modernization of the locomotive complex infrastructure. Possible methods of financing mechanisms for investment in infrastructure development have been identified.

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