TESTING DIRECTORATE

Note No. RM2/W/33 Date: 16.01.2001

Sub: Oscillation trials of 'BTPGLN' wagon over Bhopal-Nagda section of Western Railway.

Final report No. MT-266 on subject trials is enclosed herewith for information and necessary action pl.

1 Encl As above

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CD , $ ( ~ ~ / w a ~ o n e.Dir Motive Power EDlTrack .-I -=t

m ED/B&S RMDO-2copies Publication-2 copies

Report on

Oscillation Trials of BTPGLN LPG TANK bVAGON

011 Mail1 Line Track in NAGDA - UJJAIN - BHOPAL section

of WESTERN RAILWAY

Report No. MT- 266 January' 2001

TESTING DIRECTORATE RESEARCH DESIGNS & STANDARDS ORGANISATION

r ISCILL:\'IIOS TRIALS 01: HTPC1.S \V,\<jOS

F O R E W O R D

This report is based on tests conducted by the Testing Directorate of

RDSO. .4lthough e\.en. care has been taken for recording data. accm.ately and

analysing i t objectively, tlie views expressed in this report are subject to

modifications from time to time, in the light of Fresh data. Further. these do

not oecessarily represent the views of tile Ministr!. of Railways (Railway

Board)? Government of India 0 r- .-I

Tliis report is tlie property of RDSO arid is meant essentially for 4 (V

official use. It may not be loaned. reproduced in part or fi~ll, or quoted as 311

authority witliout the permission of Director General. RDSO, Lucknow.

(A.K.UPADHYAY)

Esecutive Director (Testing)

(YOGESH MOHAN)

Joint Director (OT-V)

' r ~ s r ~ s ( ; I ) I I U X T ~ I < . V ~ K I ~ I < I W I < ' ~ so. 1 r r . 2 ~ 3

R E P O R T S U b l \ I . A R Y

REPORT NO. MT - 266

UNIT CONDUCTING TRIALS OT-V

TITLE

FILE REFERENCE

CODE DESCRIPTION

NATURE OF TRIALS

TEST PERIOD

SPONSOR

DESIGN FE.4TURES

TEST OBJECTIVE

RESULTS

TEST SITE

Oscillation trials of BTPGLN wagon upto a maximum speed of 100 kmph on the Nagda-Ujjain- Bhopal dn. line of \Vestern Railway on track maintained to rnain line standards.

Boyie Tank ti'agon (.Air Brake) for transponation of LPG over the Indian Railways. code named as BTPGLN. Oscillation Trials

0ct - Nov. 2000 d r

Wagon Directorate 4 4 (V

This wagon is similar to 'BTPGL'wagon escept fitment of C.ASNLB bosie. non-transition CBC and air brake.

To determine the speed potent~al of BTPGLN wagon with worn \\heel protile in empty and loaded conditions upto a maximum speed of 100 kmph maintained to main line standards

The wagon esliibired satisfactory characteristics upto a test speed of I00 kmph.

Nagda-Ujjain-Bhopal Dn. line of Western Railway

I S l l U l ~ U . \ T KI:PIIKT SO. \i'I'-266 b

S U M Y l . 4 R Y O F R E S U L T S

\%'EDGE TESTS

! Rollin: 1 3.85 4.87 1 ;.85 3.40

I ! 1 Dampin2 factor ! 0.232 0.314 !

I 1 MODE !

PE.4K VALUES OF DETAILED SECTIONAL OSCILLATION TRIALS

Frequency (Hz) I Emprv 1 Loaded 1

Experimental Theoretical I Esperirnental ! Theoretical j 1 Bouncing I 3.84 2.30 I

I I

1 I

I S.No P4RAMETER i 1

Hy2m (tonne) j i ' i (a) Empty / (b) Loaded I

Criteria

I 2 9 1

Ernprv I Loaded 1

I

/ (knlpll, 1 , \'slue I (limpi~, 1 1 Value 1 r- Limit Speed Peak ( Speed I Peak I tV

.-!

3.79 . I I .?O ,

6.46 I i z 1 100 I . i 1 2 1 Derailment Coetficient I 1 90 0.44 i 100 0.33 /

I 1 3. I Spring on-loading as ?i of I - I I00 37 100 77.9 / l load

4.

5.

6 . I 7.

8.

I i I Spring off-loading as?6 of static load

Vertical Acceleration (g)

Lateral Acceleration (y) I Bogie Rotation (degree)

Bolster Lateral Movement (mm)

- 100 46.4 i 100 94 i

I -

-

I I

100 0.50 i 100 0.38 I

I i i G O 3 I i G O I

- i 80 0.80 ! 70 O 4 I

- 12 I 80

1.6

100 26

C O N T E N T S

INTRODUCTION ........................................................ 1

OBJECT OF THE TRIALS ........................................ I

DESIGN FEATURES

TEST PROCEDURES AND ALLIED PARTICULARS ............ 2 4.1 TEST TRAIN 4.2 TEST VEHICLE 4.3 INSTRUMENTATION AND MEASUREMENTS

EFFECTED 4 . TEST SECTION c-3

4.5 TEST SERIES r 4.6 TEST SPEED ' 4

4 (V

CRITERIA FOR ASSESSMENT ....................................... 3

DISCUSSION OF TEST RESULTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 6.1 WEDGE TESTS 4 6.2 DETAILED SECTIONAL RUNS 5 6.3 CONFIRMATORY RUNS 7

CONCLUSION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

TABLES, ANNEXURES AND FIGURES

INDEX FOR TABLES. ANNEXURES AND FIGURES

TABLE-] Par~mclcrs penaining to stabilih in cmp? conddon Tor dctailcd scclional trials

TABLE-? Panmctcrs p e n i ~ d n g to vcrticai and latcnl riding kha\.iour in cmpty condition for dctailed sectional irials

TABLE-; Pan~ncters pertaining to vcnical and Iatcml riding khaviour in loaded condition for detrriled sectional trials

TABLE4 Panmctcrs pertaining to stabiliiy in loadcd condition for detailed scctio~~al lrials

TABLE-5 Panmetcrs penaining to confirmaton Ion: run in cmph condition at 100 h p h

TABLE-6 Panmclers pcrtining to c o ~ f i r n ~ a t o n long nm in loadcd condition at 100 knlpl~

ANNESURE-I Design &ta for lllc BTPGLN prototype \.cl~iclc ANNESURE-2 Tnck recording car results Tor the dctailcd tri31 strctchcs

N N E S X R E - 3 Details of stations 011 thc NAGDA-UJJAIN-MAKSI bg main linc section FIGURE - I Gcncnl la\-out d n u i n g Tor the BTPGLN protot!pe vcfiiclc FIGURE - 2 GCncnl ;~mngancn l shoivil~g lil~ncn! of lr~llsduccrs FIGURE - ; Dcvicc Tor measuring hrcral lorcc on BTPGLS tank \ug0:011 FIGURE-4 Dctails or icst sections on t l ~ c NAGDA-UJJAIS-BHOPAL don.11 linc FIGURE-5 O s c i l l o ~ r ~ m s Tor ~vedgc lcsls in cnlpty and loadcd c o ~ ~ d l i o ~ l s F1GURE-r) Samplc stability pramctcrs o s c i l l o g r ~ ~ ~ ~ for clnpt! dclailcd scctio~ral mns

31 100 klllph

FIGURE-7 Sa~npIc riding Ixhaviour prdnclcrs oscillo;.ra~i~ Tor c~npty dctailcd scctional runs 31 100 kmph

FIGURE-8 Samplc stabilit!. pramclcrs osc i l logr~n~ Tor loaded dcuilcd sectional runs a1 100 k n ~ p l ~

FIGURE-') SJIII~IC riding bchaviour pan111~1crs OSC~~~O; .~J I I I for loi~dcd dcuilcd sccrional runs a1 100 linlpl~

i i i

XI

sii ...

Slll

.TI<S~IS( ; I)II<I:.<TOK.Y~I; R E I > O I C ~ so. xrr-26,; 5

OSCILLATION TRIALS OF 'BTPCLN' TYPE WAGON 03 THE .\.4GDA-IJJJAIN-BHOPAL SECTIOS OF WESTERN R.4ILW.AY

LPTO TIIE %IA;YIMUJI TEST SPEED OF 100 KhIPH

1. INTRODUCTION

1 . I Broad gauge Liquefied Petroleum Gas tank wagon type 'BTPGLN' having maximum axle load of 19.8 t has been designed bv RDSO for the transportation of Liquetied Petroleurn Gas over the entire BG svstem of the Indian Railways. The design incorporates fitment of CXShVB-22 NLB/NLbf bogies, non transition CBC and single pipe air brakes. The leading particulars of the wagon are indicated in RDSO's drg.No.WD-93047-S-51.This wagon is similar to 'BTPGL'wagon except fitment of CASNUB bogie. non-transition CBC and air brake in place of UIC bogie. transition CBC and vaccum brakes.

1.2 One 'BTPGLN'wagon No. WR 946573 with worn wheel profile was made available by wagon Dte of RDSO for c a v i n g out oscillation trials up to test speed of 100 kmph on Nagda-Ujjain-Bhopal section of \Vestem Railway . This wagon was fitted with load cell assemblies for [neasurement of lateral forces by In carrying out necessary modifications at Bhopal. I-

.-I d

1.3 Trials were conducted on the wagon in the months of October ZOO0 and N

November '7000 on the Nagda-Ujjain-Bhopal section of Western Railway in terms of Test Scheme to Wagon Directo'rate's note no. ;Ll\V/ BTPGL dated l~13/'7000. RDSO Speed Cenificate no. kIW1 BTPGL dated 7/I4/12.98~and amendment dated 76137.7.99: Commissioner of Railway Safety. Western Circle's sanction vide letter no. 12-512561657 dated 12.2000 and Western Rail\vav's Joint Safety Cenificate no. 25 of 1999.

*. 1.4 This report presents the results of detailed oscillation trials conducted on the BTPGLN wagon.

C :I

2. OBJECT OF THE TRIALS

1. I To assess the speed potential of BTPGLN wagon with worn wheel profile in .

empty and loaded conditions upto a maximum speed of 100 kmph on straight. station yard and curved track maintained to main line standards. .'.,

4

2.2 To determine the natural tiequencies o'f oscillations in bouncing, pitching and rolling modes in empty and loaded conditions.

3. DESIGN FE.4TURES

3 I Broad gauge bogie coil wagon type BTPGLN has been designed by RDSO to drawing no. WD-93047-S-51 for the transportation of Liquefied Petroleum Gas over the entire BG system of the Indian Railways.

3 .7 The length and width of the wagon is same as that of BTPGL wagon. The design incorporates fitrnent of CASNUB-22 XLBh'LM bocies I t has non-transition CBC and single - pipe air brake. The suspension system of the bogie is provided with elastorneric pads in primary mode and a g o u p of helical springs in secondary mode along with load proportionate friction snubber springs for damping

. - J The masimum asle load ofrhe wagon is 19.8 t

3.4 Design data of BTPGLN wagon is shown on Annexure-l and the general arrangement drawing is placed as Fig- I , w

1. TEST PROCEDllRES AND ALLIED PARTICULARS

4.1 TEST TRAIN

One Electric Locomotive hauled the trial special comprising of Oscillograph Car BLRZ 7837 and Test Wagon BTPGLN \\'R 946523 as the trailing mosc vehicle. .'.

4.2 TEST VEHICLE i

For measuring lateral forces with the help of load cells. the cartridge taper roller bearings (CTRB) were replaced with 8cylindrical roller bearings. and wide jaw -:

2 side frames to accommodate cylindrical roller bearings replaced the narrow side frames. Undersized spacers were provided in the axle boxes. to make the load cells register lateral forces. L 5 r j

4.3 INSTRU>IENTATION AND 1MEASUREMENTS EFFECTED f

The trailing bogie of test wagon was instrumented for measurement of the '"

following parameters: r f ' 2

- Lateral force at axle box level

- Bolster spring deflection on both sides - Vertical and lateral acceleration above bogie pivot - Bogie rotation - Bolster swing

4.4 TEST SECTION

Detailed oscillation trials were conducted on the followins stretches of Nagda- Ujjain-Bhopal dn. line section of Western Railway . details of which are placed as Annexure-2:

- Tajpur (TIP) station yard (km 70.35) from km 70-71 - 2" curved section at km 8215-82127 - Straight sections at km 92-93-94

1.5 TEST SERIES

4.5.1 The oscillation trials were conducted in empty and loaded condition according to the followiny two series:

Series l - The BTPGLN wagon in empty condition over straight. station yard and 2" curved track.

Series 11- The BTPGLN wagon in loaded condition over straight. station ? yard and 2" curved track. 37.6 ~onnes of LPG was loaded in [he ? wagon to simulate actual loaded conditions. 4

4 l%

4 . 5 Wedge rests were conducted in both emptv and loaded condition.

4.6 TEST SPEED

4.6.1 The detailed sectional oscillation trials were conducted from an initial speed of 60 kmph to a maximum test speed of 100 kmph in empty condition and in loaded condition. Speed increments of 10 kmph were followed.

4.6.2 Confirmatory runs at 100 kmph were conducted in empty and loaded conditions between Ujjain (UJN at km 54.98) and Maksi (MKC at km 95.86).

5. CRITERIA FOR ASSESSMENT

The assessment of riding stability behavior of wagon is based on the yidelines laid down by the 3* Report of the Standing Criteria Committee. which is reproduced below:

5. I A lateralltransverse Force lasting more than two meters shall not exceed 0.85X(I+Pl3) tonnes (Prud Homme's limit), where P is the axle load.

5.1 Isolated peak values exceeding the above limit are permissible. provided the records show a stabilizing characteristic of the wagon subsequent to the disturbances.

5 . 3 .4 simultaneous assessment of the lateral force exerted by the adjacent axle at a point, where a particular axle exerts a high lateral force.

5.4 A derailment coefficient should be worked out in the form of ratio between the lateral force and the instantaneous wheel load. continuously over a period of 1/20 second. The ratio shall not exceed 1.

5.5 A seneral indication of stable running characteristics of the wagon as evidenced by the movement of the bogie on straight and cun.ed track and by the acceleration readings and instantaneous wheel load variations.

5.6 In the case of such wagons, where measurement of forces is not possible. evaluation shall be in terms of ride index which shall not be greater than 4.5. Value of 4.25 is preferred.

6. DISCUSSION OF TEST RESULTS a3

6.1 \VEDGE TESTS P 4 4

Wedge tests were carried out in the empty and loaded conditions bv moving the N

test wagon over steel wedges to determine the natural frequencies of oscillation in ,

bouncing, pitching and rolling modes. The specimen oscillograms of wedge tests .

are shown in Figure-5. The experimental and computed values of natural frequencies are given below: i

6.2 DETAILED SECTIONAL XUNS IN ElMPTY CONDITION

L

MODE

Bouncing Pitching Rolling

Frequencv (Hz) ! Empty Loaded !

Experimental I Theoretical Experimental I Theoretical 1 i 3.84 3.86 I 1 7 0 3.56 2.5s 2.94 2.30 3.85 4.87 i 3.85

2 3 0 i : 3.40 1:.

6.2.1 STABILITY

The values of parameters measured at various speeds to assess the stability of the BTPGLN wagon with worn wheel profile in empty and loaded conditions over the 3" curve, two straight tracks of 1 km length each and station yard TJP are given in Table-l and 2. The measurements were recorded on both the leadins and trailing axles of the trailing bogie of the wagon and the maximum values have been tabulated. The maximum values of the lateral force acting for more than 2 meters track length, derailment coefficient and dynamic spring deflection, i.e. the off- loading, for Series I and Series I1 are as follows:

SERIES I (Em~t\ : wagon) -

Perusal of the above indicates that the recorded maximum value of Hy2m is 1.9 t 4 in emptv condition whichpuch.below the Prud Homme's limit of 3.79 t. and 2.9 t

in loaded condition which is below the Prud Homme's limit of 6.16 t. The maximum value of derailment coefficient is 0.44. which is again much below the permissible limit of 1.

SEC- TION

SERIES I1 (Loaded wagon)

Sample oscillograrns for these runs are shown as Figures 6 and 8.

SEC- I speed I H;$m Speed TIOF! (L:xp!~) 1 (kaph)

6.2.2 VERTICAL RlDlNG , !

0'

d

The values of parameters measured at various speeds to assess the vertical riding of the BTPGLN wagon with worn wheel profile in empty and loaded conditions !. over the 7' curve. t\w straight tracks of 1 km length each and station yard TJP are given in Table-; and 4. The maximum values of vertical acceleration recorded in the above mentioned sections for Series I and Series 11 are tabulated below: i

Drl. COCK. I Speed I Mas. 0tY- 1 I lo:~ding (?'a I

(HI@) I (Lmph) , , i j l i I l a d l

100 1.9 1.4

'TESI'ISG DIHE<~I'OH.\TE~ . KEA)K'r SO. \l'f. 266 II

100 46.4 1 '1 00 0.33 24.0

Speed (kmph)

Speed (kmph)

2" Curve Str.Trk. I StrTrk. 2 Stn. Yrd.

Str.Trk. 1 60.SO 1 0 / 100 0.34 I SO 31.5 I ;

93 I '

1 GO 1 . 6 , 3.11: 100 --. ?? j ;

Hy7m 0 )

100 2.0 100 2.9 100 2.1 100 2.5

100 0.21 100 0.33 100 0.22 80 0.74

100 94.0 I N 100 50.7 100 77.9 1 100 68.2, 1

SERIES I(Emvty wason) SECTION Speed ,blah Ven 1 (tmph) / Accl 6%) 2' Curve 1 100 0 50 1 Straight Track. I 100 Straight Track. 2 1 I00 0.34

I Station Yard 1 !OO 0.32

SERIES IIlLoaded wason) SECTION Speed Ma\ Ven

I I (krnph) Accl (gl 20 Curve I 70 o 4

i Straight Track I 90 0 1 0 I Stra~ght Track 2 0 32

1 Stat~on Yard 100 0 36

Tlie maximum values of accelerations recorded are 0.5 g for empty condition and 0.4 g for loaded condition- which are satisfactory.

Sample oscilloyams are placed as Figures 7 and 9.

Tile values of parameters measured at various speeds to assess the lateral riding of 0 the BTPGLN wagon with worn wheel protile in empty and loaded conditions over &, the 2" curve. tw-o straighttracks of 1 km length each and station yard TJP are .-I given in Table-; and 4. The maximum values of lateral acceleration. bogie 4

N rotation and bolster swing for Series I and Series 11 are tabulated below:

SERIES I(Emvtv wagon)

SERIES IIlLoaded wagon]

SEC- TlON 3" Curve Str.Trk. 1

1

Speed Max. Bogie

fimph) / "[ation('.

80 0.80

Speed Max. Latl. (kmph) 1 ~ k c l (g)

100 0.32 90 '0.26

Speed Ma" 1"'l'"'cr

(kmph) 1 S ~ V I I I ~ ( I I I ~ I I

80 12.0 / 0.22

Stn. Yrd. b.34

Speed May. Bogie -

Speed I SEC-

60 60 05 ' 1 80

6 1 80 0.50 5.5 1

Speed 1 Max. Latl. TION 2" Curve Str.Trk. 1

90 0.55

(kmph) , Rot"ion(")

70 1.6 70,100 0.7

(khph) , Accl. (2) 90 b.30

1 100 9.32

80 8

(kmph) , 100 26 100 22 I j

Perusal of the above shows that for empty and loaded condition the maximum lateral acceleration recorded was 0.34 g and 0.42, maximum bogie rotation 0.80' and 1.6". and maximum bolster swing 12 mm and 26 mm, which is satisfactory The lateral movement of the bolster and the bogie rotation do not show any constraint in movement, as evidenced by the osci l lo~ams.

Sample ocsillograms are placed as Figires 7 and 9.

6.3 CONFIRMATORY RUNS

6.3.1 Confirmatory long run in empty condition was conducted for about 40 kms between UJN and MKC at a speed of 100 kmph. The results of kilometer-wise analysis of the oscillograms for the whole section are placed as Table-5.

Perusal of these results shows that the lateral force Hy2m has not crossed the Prud Homme's limit of 3.79 t and the maximum value recorded is 2.1 t at km 78-79. The corresponding derailment coefficient is 0.42, which is much below the safe limit of 1 . A maximum instantaneous vertical acceleration of 0.5 g was recorded at km 82-83. Other parameters, such as bolster swing and bogie rotation recorded show stable running characteristics. The data recorded during the long confirmatory run is in general agreement with the data of the detailed trial stretches. Sample oscillo.grams are placed as Figures 7 and 9.

6.3.2 21 confirmatory long run for about 40 kms in loaded condition at 100 kmph was conducted between UJN and MKC. The kilometer-wise analysis of the 4 oscillograms recorded is placed as Table-6. cO

Perusal of these results shows that the lateral force Hy2m has not crossed 4 d

the Prud Homme's limit of 6.46 t and the maximum value recorded is 2.9 t at kms CV 72-73. 84-85 & 92-93. The corresponding derailment coetxcient is 0.38. which is much below the safe limit of I . A maximum instantaneous vertical acceleration of 0.54 g was recorded at kms 59-60, 69-70 & 95-96. Other parameters. such as bolster swing and bosie rotation recorded show stable running characteristics. The

'

data recorded during the long contirmatow run is in general agreement with the data of the detailed trial stretches. sampl; oscillograms are placed as Figures 7 and 9.

7. CONCLUSION

On the basis of oscillation trial results, as discussed above. the BTPGLN wagon with worn wheel profile exhibits satisfactory riding characteristics upto a test speed of 100 kmph in empty and loaded conditions on straight track. station yard ,, and on a 2" curve maintained to normal main line standards

OSCILLATION W S OF BmGW WAGON

TABLE-I

PARAMETERS PERTAINING TO STABILITY IN EMPTY CONDITION RECORDED IN DETAILED SECTIONAL TRIALS ON

BTPGLN WAGON ( WORN WHEEL PROFILE)

TESTING DIRECTORATE 0 REWRT NO. MT-266 I

OSCILLATION lTUALS OF BTPGLN WAG3N

TABLE-2 PARAMETERS PERTAINING TO STABILITY IN LOADED

CONDITION RECORDED IN DETAILED SECTIONAL TRIALS ON BTPGLN WAGON

( WORN WHEEL PROFILE)

TESTING DIRECTORATE 0 REPORT NO. MT-266 I1

TABLE-; PARAlMETERS PERTAIh'ING TO RIDING BEHAVIOUR N

ElMPTY CONDITION IN DETAILED SECTIONAL TRIALS ON BTPGLN WAGON

( WORN WHEEL PROFILE)

TESTLNC DIRECTORATE 0 KEWRT NO. MT-2s ... 111

OSCULATION TRIALS OF B'IPGLN WAGON

PARAMETERS PERTAINING TO RIDING BEHAVIOUR IN LOADED CONDITION IN DETAILED SECTIONAL TRIALS ON

BTPGLN WAGON ( WORN WHEEL PROFILE)

TESTING DIRECTOUTE 0 REWRT NO. MT-266 iv

3

llccord No CONFIRkIA'TORI' I,ONG IIl lN 'IN ERIP'I'Y CONI)I'i'ION A.1' I 0 0 KRlPl1 O F 'l'A13l.E-5

DESIGS DATA O F BTPGLN LPG TANK WAGOS

CODE BTPGLN

BOGIE O R &WHEELER Bogie Wagon

COMRIODITY T O BE LOADED Liquefied Petroleum Gas

BODY DIMENSIONS (mm) Length over head stocks 18.000 Length oxier buffers 18.9.29 Barrel inside diameter 2400 h4aximum high from rail level 4285 Height of coupler from rail level I I05 (L .V ) Distance between bogie centres 12970

BOGIE DIPIENSIONS (mm) Length ot'bosie fra~ne Bogie width Wheel base Lateral spacing of primary spring Lateral spacing of secondary sprint; Lateral spacing of side bearers.

WHEEL .AXLE DET.AILS Mas, axle load ( I )

Wheel dia. (mm) (a ) New (b) Condemning

Distance between journal centres (mm) Tyre Profile Wheel arrangement

WElGl iT PARTICULARS (t) Tare weight Gross Load Weight of two bopies

Sprung mass on secondary springsfbogie Sprung mass on primary springslbopie Unspruny masslbo~ie

2480 27SO 2000 N A 2260 (centre to centre) I474 (centre to centre)

19.8 (1)

1000 906 2360 Worn wheel profile WD-89035-S- I

Continuued

SPRING DETAILS Type ~primnry or secondary 30, per bogie No. of spring nests per bogie No. of spring in each nest

Stiffness per spring (Kgmm) /--or helicol .spritrg.s: (a) Free height (mm) (b) Effective no. of coils ( C ) Mean coil diameter (mm) (d) Wire diameter (mm) /.~~III~I?L.IILY~ .~/l~'~ll~~.S. ' (a) Spring eye centres (mm) (b) No. of plates (C ) Free camber (mm) (d) Plate tllickness (mm)

ST.-\TIC DEFLECTION

Primary Stage Secondary stage (mm)

NATUR.4L FREQLJENCIES (cps)

Bouncing I

Pitchins Rolling

FLESIIR RIGIDITIES (t.cm/secz)

Lf-I of bod:; aboiit ;ians;,eise axis M-l of body about longitudinal axis'

DAMPING DETAILS Primary Stage Secondary stage Dampin2 factor in venical mode. Damping factor in lateral mode.

Secondary/Helical springs 24 ( 12 outer. S inner and 4 snubber) - 12 Outer Inner Snubber 46.45 20.6 12.4

N.A.

Continued . . . . . . . . 1 tL i

lAlPORT.4KT C1,E.ARANCF.S (mm)

Betvqeen bolster and bosie frame (a) \'enlcaI 8.3 (b) Lateral 18 Between adapter and side frame (a) i-ateral 16 (h) 1-nng~tudinal 9 Crown clearance between adapter and side Nil frame Side hearer clearances Yil

Gross -

DR\\VINGS General arrangement /layout iirD-93 047-S-5 1 Rngie general arrangement \W-89073 - Sl3

AN)' OTHER DETAILS UIL

TRACK RECORDING CAR RESULTS FOR THE DETAILED TRIAL STRETCHES

ck:SIIS<: I)IHtXTOIL\'TE. . REPOBY SO. '7 6 6 x

Following stretches of Nazda-Ujjain-Bhopal section do~vn line of \Vestern Railway are recommended for trials based on the recordin, l r results of TRC RZX '125 of March 1000:

1 . 2' curve (km 18120- 18/30) 2. Straight sectionfkm 25-27)

3. Station Yard Aslaoda (km 35.09)

Due to speed restrictions mentioned in letter No. Rh12lLl63 dt. IS . 1 1.3000 to TM Directorate. the following section between UJN-MKC on down line for oscillation trials of BTPGLN was used.

4 u.

i DET/\ILS / UNL 1 UNR 1 TW 1 Gt\ 1 :ILL ! .ALR I Cm 1 .-I d

! STATION YARD T A ~ ~ U R (KXI 70.35) CV

KM 69-70

/ KM 70-71 B5 B1 ' 8 7 j 87 / B6 ! C17 I C19

I CURVE 3 DEGREE IK'M S3!j-82/27) 1 KM 82-83 / AO I AO 1 AO I AO I BO i BO I SO 1 STRAIGHT TRACK (K'M 92-94)

/ KM 92-93 B10

KM 93-94 B8 54

OSCILL.\TIOS TRIALS UF DTPtiL \\'..\(;OX

m1hiE1%RE-;

DETAILS O F STATIONS O N THE NAGDA-UJJAIN-%l.AI<Sl BROAD GAUGE MAIN LINE SECTION

CONTROLLED SECTION

(A) NAGDA-UJJATN 54.98 krns

(B) UJJAIN-MAKSI 40.88 kms

MAXIMUM PERMISSIBLE SPEED 100 kmph

SYSTEM OF WORKING Absolute Block Svsrern

SIGNALING M ACLS

NAD

BTSD

PPG

UNL

PSO

ASL

GRF

NKI

SPBG

UJN

U r n 'C'

PLW

TIP

SVT

TAN

I KILOMETER ' STATION I NAME

1 NAGDA IN.

STATION CODE

Bhatisuda

Piploda Bagla

Unhel

Palsora ~ a k r a w a n

Aslaoda

Garnbhir Bridge Cabin

Naikheri

Sipra Bridge

UJJAIN M.

Ujjain Cabin

Pigieshwar

Tajpur

Shivpura

I Tarana Road

CLASS OF STh. iSTAM)AIU) Of

INTTRI.OCE;IN(i)

95.86

D

B (Ill) I

B (111)

C

B (111) 1 B

B (111)

B

B (111)

B (In)

B cm) B (In)

MKC ' I MAKSI JN.

SOURCE: WorkingTiieTable No. 74 for h d m Division issued b?. Wes~cm Rail\vay.

TESTlX(: I I I R U T O M t E ~ 7 REPORT SO. 26G XI

FIG. I .GENERAL 'ARRANGEMENT OF ' BT PGLN'TANK WAGON.

LIYQT. FOR B O L S ~ E R SPRING DEFLECTION

FIG.2 .GENERAL ARRANGEMENT SHOWING FITMEN7 OF TRAEISDUCERS .

@ '+' F I G 3 .DEVICE'FOR MEBURING LATERAL FORCES ON ' €37 PGLN'TANK WAGON.

I I - . 1 , -

-

.

I .

li )

w

,. ,

. ECTION OF RUN. 0 @ti UHE)

TNPUR 5TW.

: I j !

. . I . A I i /

1: - . t ! _ / , .. . . , ! N 44 9d ' :

.. . &--- - 3L-i ..urn 1 . I.--, TYPE OF RAIL. . . ----- . .

! :

2 . L MPE.OF STEEL.-- .-

I ! i

1.:: SLEEPER DENSITY-- LM t 7.- M +7--- -. M +I I

- 4.- BALLAST DEPTH--- . . . i Z s m m I

. .5.J DEGREE OF CLIRVE-- .. 1

t i _.85 r n c i . ... . . - . . . . . .. . . . . . . . . 1 6.- SUPER ELEVATION .-.

I ! . ! - . , .

FlG.4 . DETAILS OF 'TEST S E C T ION . l u JN -MAW\ W. RLY) I .

!

-."-t - "? .,. 8 - , .Ai

24196 I

1 r

XI 5 ?J

XI 18 m.

: ~ = 2 j Q o a = - = - - - I.SQ &=NO& = --= - = 1-36 ZP - 1 2 4- 1 2 - 1.25 3 h

L-1.

LOADEb Dp 1 - 3 8 p - - . - D F - r = 0-2145

d 39.485ESO

BOUNC\NG - - - VERTICAL ACCN.

50 rnmjsec. -I

TIMER- - - - - n-

- - .: 2 , ' - - - - -

PITCHING - - - - - S - A

VERTICAL AC03. v -

4 : . 50mm/Seee

TIMER-- - - - n 4

RQLLING. - - -- TRANS. A C C N . cT

~ a r n m / s e c . d 9 somm /see.

Ie - -.TIMER,---- n - n .-l 7

I

8 I,- . 3 % ., I

F1G.S. WEDGE: TEST O F BTPG L N v m - IN EMPTY S LOADED CONDITION L . - '

f l CI

-0 - 0: R r ;; ' O lA

-4 - 2 GI

.-. ... ...-.. - -. -

O.T.Ohl: BTPGLN TANK

( R L C ) b

2. TlMER

....

3. SP. DEFLECTION CLEFT)

i .TRANSVERSE FORCE TRAILING AXLE (LEFT)

CRLC)

- - 5.TRANSVERSE FORCE +I'

LEADING AXLE (R 1 GHT)

(LLc)

6. SPRING DEFLECT1 ON [RIGHT)

7.TRAHY ERSE FORCE 7' - TRAILING AXLE CR\GHT)

' _ CLLC)

h ,y'

Fl G. 6. SAMPLE STABILITY PARAMETERS OSCLLO GRAM FOR EMPTY DETAILED SECTIONAL RUNS -

AT 100krnlh C ..

MECHANICAL TESTING

4

12. TIMER I n n n n n _ n n L ~m n n f . -. , . * - , . . . , . . , . ., . . , . ,.,+ > -.,-.+--,-.... , , .-, . - I

3 BOGIE. ROTATION

I FlG.7 SAMPLE RIDING BEHAVIOUR PARAMETERS OSCILLOGRAM FOR EMPTY DETAILED SECTIONAL RUNS AT I00 Km/h@

8 DS 0 0. T (3 F I - BTPGLN TANK WAGON

....... . , . . .

\.TRANS. FORCE

. .

2.TIMER 1 I

TRANS. FORCE T'. A. CLEFT)

CRL. C)

5.TRANSVERSE FORCE L'&AD\HG AXLE (RIGHT)

....

CLLC) i;:

. . . . . . . . . . . . . .

6. SPRING DEFL: ( R L G H T ) 1 h.

I '

'Z~RANSVERSE. FORCE T.A. (RIGHT)

FIG. 8. SAMPLE STABILITY PARAMETERS OSC1LLOG. FOR LOADED DETALED SECT1 ONAL RUNS AT 100h lb

k I

r3'9

I. BOLSTE-R SWING

3. BOGIE ROTATION

FlG.9. SAMPLE RIDING BEHAVIOUR PARAMETERS OSCILLOGRAM

OSCILL.4TIOY TRIALS OF BTK7l.X U',\GOS

This report is based on the trials conducted by the team of OT-V led by Shri Yogesh Mohan , JDRM(0T-V) , Shri S.Bahuguna , JDRM(0T-111) add the following officer1 staff:-

S.No. Name SlShri Design a t' I O ~

1 . M. Singh ARE(M)OT-V

7. M.Nazim SRA(1M)

8. Rajender Prakash R A ( I )

The followiny have assisted in the preparation1 compilation of the report:

1. Nicodim Tirkey PA 2. Chander Singh CDA ' 9

1. Bihari La1 CDA 4. Abdul Hamid ID A 5. S.K.Sharma SDA

'rFn\T12<; 1)IRECTOWCE ,;> REPORT KO. 266 11