Car Body and Bogie Connection Modification for Track Curves Passability Improvement

MATEC Web of Conferences 157, 03009 (2018) https://doi.org/10.1051/matecconf/201815703009 MMS 2017

Car body and bogie connection modification for track curves passability improvement

Vladimír Hauser1,*, la Nozhenko1, ara Kravchenko1, Mária Loulová1, ra Gerlici1, Tomáš Lack1 1University of Ţilina, Faculty of Mechanical Engineering, Department of Transport and Handling Machines, Univerzitná 1, 010 26 Ţilina, Slovak Republic

Abstract. For Tram cars, it is often necessary to operate in cities on strongly curved track, which is followed by an increased effect of the vehicle on the track. Especially, this increased effect occurs in spiral transition curves situated between direct and arc sections or between two arc sections of different radius. In such case, increased guiding forces, creep in the rail - wheel contact, wear and noise generation can be observed. Exactly with the aim to reduce these undesirable effects we designed a tram bogie with steered wheelsets. This paper deals with a modification of its coupling to vehicle body in order to improve vehicle dynamics in transition curves. Proposed innovative construction of this coupling unit is registered by authors under Utility Model Nr. u201609015 and Utility Model Nr. u201703246. Description of the proposed way for a vehicle to pass through curved track with regard to bogie-body coupling and wheelset steering mechanisms with usage of multibody computing software is given in this paper. Keywords: bogie to vehicle body coupling, track transition curves, tramcar throughput improvement

1 Introduction The way a vehicle passes a track arc depends on many factors. The most important of these include the bogie wheelbase, the distance of pivot pins, the way the car body is mounted on the bogie, the design of the wheelset guiding in the bogie, the track gauge and the width of the track free channel with which the geometry of the wheel and rail profiles is directly related. The most favorable situation for the vehicle during a ride in a curve is the radial position, the wheelset guides should provide zero angles of attack, the wheel and rail profiles should provide one-point contact as well as lateral displacement of the wheel from the track axis such that the change of the radius of the outer and inner wheels would compensate the difference in the lengths of the outer and inner rails. Fulfilling these conditions will result in a reduction in creep velocities in wheel-rail contacts, minimizing vehicle riding resistance in curve, extending wheel and rail profile service life, reducing bogie and track load, and reducing traffic noise. It is particularly desirable to achieve such a favorable condition in an environment with frequent occurrences of small radius arcs, such

* Corresponding author: [email protected] Reviewers: Mar Macko, Mila Ţmindák

© The Authors, published by EDP Sciences. This is an open access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0/). MATEC Web of Conferences 157, 03009 (2018) https://doi.org/10.1051/matecconf/201815703009 MMS 2017

l o ul o vl o o o ol ul o o ol o uo l oluo o ol o o l o u vol o ou l o oo oluo ov l o l l lo uv o o oo o l v o o oo lv o o

2 The wheelset control mechanism uo o ool o oo o l l u o oo o o o o uulo ov o vl v o ou ov o l o loul o o u vl l o oo o o o vl ouu vl l o oo o l o o ov l o o l u oo o o oo o o o o o oo o o

Fig. 1. o oo o o o o oo o

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l o ul o vl o o o o l u l ol ul o o ol ou o vo oul o o o oo o uo l oluo o ol o o l o l ou vo u ol o o o u vol o ou l o o o Lv ol ou o oo oluo ov l o l l lv oul o o o l o o lo uv o o oo o l v o uo oo l o o o o o lv o o oo lv o o o uo o oo o o ll o lo o lulo o o o 2 The wheelset control mechanism u vl o ou ll o l uo o ool o oo o l o ollo lo o uo vo l u o oo o o o o uulo lo o o l o o o ov o vl v o ou o ov o l o loul o o u vl l o oo o o o vl ouu vl l o oo o l o o ov l o o l u oo o o oo o o o o o oo o o

Fig. 2 o vl o o o o o o l o oo o l o o  lo

b   arcsin 2R vl o l u o o l o oo o o lv o o ol o lo

B   arcsin 2Rv 

Fig. 1. o oo o o o o oo o

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vl o vo v ll lo o vo o o o lulo o vlu ol o u lo o lo

b vR  2 tan

2 2 b vR R  2

l u o o l o o o o o o ll loull ov l o o vlu o loul l

xdd  sin

d o l o o loul o o lv o ov loul o l vlu o u o o vlu o o ol o lo

x e  d sin 

lo o vlu o o o o

dbR v e   RB vl v vlu u ll vl l uo o o o oul ol o ollo lo o o

db e  B o o vl o l vo o u o loul o vl ul vlu o o l vl o l o u vl o o ou oo ll o vol o o l

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vl o vo v 3 Examinated options of bogie mounting on the car body ll lo o vo o o o lulo o vlu ol o u lo o lo u o o o o u l v o vo o b u vR  2 tan vl o l o vl o oo o l ool v o vo u o 2 u uulo ov o vl o l 2 b vR R  2 lu o ll o ou o uv l u o o l o o o o o o ll loull o o o o ou vo oo ov l o o vlu o loul l o o vo l o oo o o o ou o o o u oluo ull l lo o ul o o o uo ov o vl o o o o uv l o xdd  sin o o o vl u lo d o l o o loul o o o o o uulo ov o vl u oo lv o ov loul o l vlu o u o o vlu o o ol o lo x e  d sin 

lo o vlu o o o o dbR v e   RB

vl v vlu u ll vl l Fig. 3. o oul l l o o l uo o o o oul ol o ollo lo o o o o u o vo o oo o o o ll l o vo lo db o ou o o u oluo ll ov ov e  B vl o ou o uv o vl o o o u ll oo l o o o vl o l vo ol o l vl o o vo o u o o o ou ul o ou o vo o loul o vl ul vlu o oo o o u o o v o l vl o l o u o o l ooo v lo o ll vl o o ou oo ll o vol l o ou vo ul o ol o l o u o o l o o

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Fig. 4. oo o o u vl o l l l o u o l l l o u o vl o o o l ll o o ov vo ou o vl ulo l o o ul o oo oluo

4 Simulation analysis of vehicle ride l ulo l o o vo u l oul vl ol u o lo o vl o u u o o vl ol l uo l ll o o vl oo o v ol o uo o o o v o loo ou o vl o o u uo ulo o vl o o o o o o o uv o loo o ou u o o l o o o o o o u o l vl l o v o v vl l uulo ov v ol ou v o

Fig. 5. u ulo

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u lulo o o vl o ul vlu o ll l o l l o o l l o u l o o l l o u o l o lul ol quantities’ ou o o v lo ou o o vl v l ul o o u ou o oo u o v l voul o o o

5 Evaluation of the monitored quantities’ courses ul o o ulo l vul v ollo

o o o o vo l o o Fig. 4. oo o o u vl o o o o o vo ol ou l l l o u o o o l l l o u o vl o o o vo l o o o o l ll o o ov vo ou o o vl ulo l o o ul o o o o o vo ol oo oluo ou o o

o vl l vlu o ll l o 4 Simulation analysis of vehicle ride l o o l v o u o ou ll o o o vl ou l ulo l o o vo u lo o o oo o o o v o o o l ol l oul vl ol u o lo o u o o uo o o l vl o u u o o ll lo o o l l v loo o v v o vl ol l uo l o uulo ov o l ll o o vl ou ll lu o ov v v oo o v ol o uo o o o v o loo ou o vl o o u uo ulo o vl o o o o o o o uv o loo o ou u o o l o o o o o o u o l vl l o v o v vl l uulo ov v ol ou v o

Fig. 6. Ll l o l o l o l l vl o ol u lo u o Fig. 5. u ulo o o ou o u o ll o vol

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uiin es su at in te sae ietin n t eesets te ie tei sie is siia ne te assutins uni ea te t eesets is eate n ase a ie in a ta a te inease in te uiin es su nt e suen i it an e eue tat tese equieents see t est it te aiants an ee it is nt suiient te ess uiin es t e anase seaate t is as neessa t eauate te in tes saet aainst eaient ie t anase te use te ati te uiin an etia ee e as sn in i n te asis te auate ata it an e nue tat a se sutins ae sae aainst eaient it aiants an aeain e esetie as e aae aues ae aiee n te attain eeset

Fig. 7. atea es in ntat a nt et ee ai nt it ee ai ea et ee ai ea it ee – ai

Fig. 8 aet aainst eaient ine a nt et ee ai nt it ee ai ea et ee ai ea it ee ai siniiant iniat te eiaiit te ie is te aue anes atta te anase aiants sn in i n a aae ase it su e se t e in eait it usua eaes aues u t °. In an event that none anes atta ae esent te eeai ntat is eae te tanse e siniiant atea es i ten an nt e tansee tu te aesie n siniiant ee

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uiin es su at in te sae ietin n t eesets te ie tei sie o n the atea an ontna eton. hen toont ontat aheve the is siia ne te assutins uni ea te t eesets is eate n ase ontat ae ae oten oveoae oe atn eteen the ontat ont o the a ie in a ta a te inease in te uiin es su nt e suen i hee tea an the hee ane. he etn ot o h oeaton neae noe it an e eue tat tese equieents see t est it te aiants an ee it an ea o the ontat a. o . t an e ea that athoh the anae ta ha is nt suiient te ess uiin es t e anase seaate t is as an a th the aet oe a aoe the tana to e e ata neessa t eauate te in tes saet aainst eaient ie t anase te use a ane o atta ae aheve. o th ont o ve oton an aea n te ati te uiin an etia ee e as sn in i n te asis te eetve. auate ata it an e nue tat a se sutins ae sae aainst eaient it aiants an aeain e esetie as e aae aues ae aiee n te attain eeset

Fig. 9. ne o atta a ont et hee a ont ht hee a ea et hee a ea ht hee – a Fig. 7. atea es in ntat a nt et ee ai nt it ee ai ea et ee ai ea it ee – ai

Fig. 10. ea ne n ontat a ont et hee a ont ht hee a ea et hee a ea ht hee a Fig. 8 aet aainst eaient ine a nt et ee ai nt it ee ai . ho the oe o the ea ne .e. ntent o nteaton n nva ea et ee ai ea it ee ai heea ontat. It an e one that a nant oveent aheve n a siniiant iniat te eiaiit te ie is te aue anes atta anae ae oae to vehe th no teen ehan. o aon the te anase aiants sn in i n a aae ase it su e se t e in ooe ote o an an ontn o the oe vaant ee eetve a eait it usua eaes aues u t °. In an event that none anes atta ae thee ae no nant ate n t oe an ovea t eahe o vae. esent te eeai ntat is eae te tanse e siniiant atea es i ten an nt e tansee tu te aesie n siniiant ee

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oncusion authors‘collective

of the Slovak Republic in project No. KEGA 077ŢU

eerences J. Diţo, ali o a ood ao ri o a raila ra 16 Trdimioal lai odi i rolli oa Šťastniak, J. Diţo omario o ar la rorammd i M J. Gerlici, T. Lack, V. Hauser, M. Maňurová, O. arria oi M. Loulová, V. Hauser, J. Gerlici, arria oi Ieropoľskij, Trama T V. Hauser, O. Nozhenko, K. Kravchenko, M. Loulová, J. Gerlici, T. Lack, ma o r al o oi o ram aior ai rd ra 192 Modlli ad imlaio o ram oi i ll iddl roai l imlaio o rail il dami i MT irom 33

10 MATEC Web of Conferences 157, 03009 (2018) https://doi.org/10.1051/matecconf/201815703009 MMS 2017

oncusion eli oia ail il io odiio moiori aroa ad imlmaio oural viroeieeri ithuaia A. Sapietová, M. Sága, P. Novák, R. Bednár, J. Diţo, i ad aliaio o mli oar laorm or oli o maial mliod m rolm echatroics ecet techoloical a scietiic avaces M. Blatnický, M. Štauderová, J. Diţo, mrial aali o rr irdr or il al al aliraio roceia ieeri 177 J. Diţo, J. Harušinec, M. Blatnický, Mliod m o a rail il oi i a lil od auacturi techolo 15 J. Diţo, M. Blatnický, B. Skočilasová, omaioal modlli o rail il mliod m ildi lil odi ouicatios scietiic letters o the University of Ţilina 17 authors‘collective TNŢ 73 63 61 omrial oiio ad lao o raila i mm a (ŢSR, ratislava

of the Slovak Republic in project No. KEGA 077ŢU