Longitudinal train dynamics model for a rail transit simulation system

doi:10.1016/j.trc.2017.10.011

Title: Longitudinal train dynamics model for a rail transit simulation system

Abstract

The paper develops a longitudinal train dynamics model in support of microscopic railway transportation simulation. The model can be calibrated without any mechanical data making it ideal for implementation in transportation simulators. The calibration and validation work is based on data collected from the Portland light rail train fleet. The calibration procedure is mathematically formulated as a constrained non-linear optimization problem. The validity of the model is assessed by comparing instantaneous model predictions against field observations, and also evaluated in the domains of acceleration/deceleration versus speed and acceleration/deceleration versus distance. A test is conducted to investigate the adequacy of the model in simulation implementation. The results demonstrate that the proposed model can adequately capture instantaneous train dynamics, and provides good performance in the simulation test. Thus, the model provides a simple theoretical foundation for microscopic simulators and will significantly support the planning, management and control of railway transportation systems.

Authors:

^[1]; Rakha, Hesham A. ^[1]

Virginia Polytechnic Inst. and State Univ. (Virginia Tech), Blacksburg, VA (United States). Transportation Inst. and Center for Sustainable Mobility

Publication Date:: 2018-01-01

Research Org.:: PARC, Palo Alto, CA (United States)

Sponsoring Org.:: USDOE Advanced Research Projects Agency - Energy (ARPA-E); Transportation for Livability by Integrating Vehicles and the Environment (TranLIVE); Georgia Inst. of Technology, Atlanta, GA (United States)

OSTI Identifier:: 1427871

Grant/Contract Number:: AR0000612

Resource Type:: Journal Article: Accepted Manuscript

Journal Name:: Transportation Research Part C: Emerging Technologies

Additional Journal Information:: Journal Volume: 86; Journal Issue: C; Journal ID: ISSN 0968-090X

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 42 ENGINEERING; 97 MATHEMATICS AND COMPUTING; Train; Longitudinal dynamics; Microscopic simulation; Rail transit

Citation Formats


                    Wang, Jinghui, and Rakha, Hesham A. Longitudinal train dynamics model for a rail transit simulation system.  United States: N. p., 2018. 
        Web.  doi:10.1016/j.trc.2017.10.011.

Copy to clipboard


                    Wang, Jinghui, & Rakha, Hesham A. Longitudinal train dynamics model for a rail transit simulation system.  United States.  doi:10.1016/j.trc.2017.10.011.

Copy to clipboard


                    Wang, Jinghui, and Rakha, Hesham A. Mon .  
        "Longitudinal train dynamics model for a rail transit simulation system".  United States.  doi:10.1016/j.trc.2017.10.011.  https://www.osti.gov/servlets/purl/1427871.

Copy to clipboard


                    
@article{osti_1427871,

  title        = {Longitudinal train dynamics model for a rail transit simulation system},

  author       = {Wang, Jinghui and Rakha, Hesham A.},

  abstractNote = {The paper develops a longitudinal train dynamics model in support of microscopic railway transportation simulation. The model can be calibrated without any mechanical data making it ideal for implementation in transportation simulators. The calibration and validation work is based on data collected from the Portland light rail train fleet. The calibration procedure is mathematically formulated as a constrained non-linear optimization problem. The validity of the model is assessed by comparing instantaneous model predictions against field observations, and also evaluated in the domains of acceleration/deceleration versus speed and acceleration/deceleration versus distance. A test is conducted to investigate the adequacy of the model in simulation implementation. The results demonstrate that the proposed model can adequately capture instantaneous train dynamics, and provides good performance in the simulation test. Thus, the model provides a simple theoretical foundation for microscopic simulators and will significantly support the planning, management and control of railway transportation systems.},

  doi          = {10.1016/j.trc.2017.10.011},

  journal      = {Transportation Research Part C: Emerging Technologies},

  issn         = {0968-090X},

  number       = C,

  volume       = 86,

  place        = {United States},

  year         = {2018},

  month        = {1}

}

Copy to clipboard

Journal Article:

Free Publicly Available Full Text

Accepted Manuscript (DOE)

Publisher's Version of Record

DOI: 10.1016/j.trc.2017.10.011

Other availability

Search WorldCat to find libraries that may hold this journal

Citation Metrics:

Cited by: 1 work

Citation information provided by
Web of Science

Figures / Tables:

Fig. 1:: Variation of throttle level as a function of speed

All figures and tables (12 total)

Save / Share:

Export Metadata

Save to My Library

Figures / Tables found in this record:

Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.

Similar records in OSTI.GOV collections:

Electric train energy consumption modeling

Journal Article Wang, Jinghui ; Rakha, Hesham A. - Applied Energy

For this paper we develop an electric train energy consumption modeling framework considering instantaneous regenerative braking efficiency in support of a rail simulation system. The model is calibrated with data from Portland, Oregon using an unconstrained non-linear optimization procedure, and validated using data from Chicago, Illinois by comparing model predictions against the National Transit Database (NTD) estimates. The results demonstrate that regenerative braking efficiency varies as an exponential function of the deceleration level, rather than an average constant as assumed in previous studies. The model predictions are demonstrated to be consistent with the NTD estimates, producing a predicted error ofmore »« less
Cited by 5
DOI: 10.1016/j.apenergy.2017.02.058

Full Text Available
Railroad management and planning. Volume 1. 1964--1973 (a bibliography with abstracts). Report for 1964--1973. [139 citations]

Technical Report Adams, G.H.

Many aspects of railroad management and planning are presented in a two volume bibliography. Studies of Government and regional planning, intermodal operations and comparisons, cost engineering, area operations such as the Northeast Corridor and several specific cities, and railway terminals are cited. Also discussed are safety, fire hazards, community and environmental relations, high speed transit, railroad abandonment, and crossings. Other topics are track-train dynamics, wheel-rail noise control, state-of-the-art and test cars, electrical energy, demand, commuting, and transportation models. Freight transportation and accident investigations are omitted. (This updated bibliography contains 139 abstracts, none of which are new entries to the previousmore » edition.)« less
Dynamic analysis to establish normal shock and vibration of radioactive material shipping packages. Quarterly progress report, October 1, 1978--December 31, 1978

Technical Report Fields, S.R. ; Mech, S.J.

The basic radioactive material shipping cask-rail car dynamic simulator model, CARDS, has been modified to incorporate the following: draft gear submodels were installed for the couplers between cars, suspension subsystem submodels were installed at the front and rear trucks of the cask-rail car, a term defining the vertical friction force at the coupler face was added to the equations of motion for the cask-rail car, and the model was expanded to include equations of motion for each car in an anvil train. A simulation run was made to test the involved version of CARDS. Propagation of how the shock ofmore »« less
DOI: 10.2172/6258611

Full Text Available
Rail transportation of Fernald remediation waste

Conference Fellman, R.T. ; Lojek, D.A. ; Motl, G.P. ; ...

Remediation of the Department of Energy (DOE) Fernald site located north of Cincinnati will generate large quantities of low-level radwaste. This volume includes approximately 1,050,000 tons of material to be removed from eight waste pits comprising Operable Unit 1 (OU-1). The remedial alternative selected includes waste material excavation, drying and transportation by rail to a burial site in the arid west for disposal. Rail transportation was selected not only because rail transportation is safer than truck transportation, but also because of the sheer magnitude of the project and the availability of bulk rail car unloading facilities at a representative disposalmore »« less
Full Text Available
Livermore's 2004 R&D 100 Awards: Magnetically Levitated Train Takes Flight

Technical Report Hazi, A

the 1960s, transportation industry planners have sought an energy-efficient design for a train that can glide through air at speeds up to 500 kilometers per hour. This type of train, called a magnetically levitated (maglev) train, is thought to be a viable solution to meet the nation's growing need for intercity and urban transportation networks. However, despite some promising developments, unresolved concerns with the operation and safety of maglev trains has prevented the transition from demonstration model to commercial development. Inductrack, a maglev system originally conceived by Livermore physicist Richard Post, is designed to address these issues. Post's work onmore »« less
DOI: 10.2172/883736

Full Text Available

Similar Records