#dyna Step analysis - looping on certain range of speeds

SOFiSTiK
1

Hi all,
I’m having some issues with performing time step analysis with prepared beforehand values for speeds - only the ressonaince speeds.

Here is a graphic from my excel sheet:

image
image830×196 6.06 KB

And below my code (work in progress phase):

+prog dyna urs:8
head Obliczenia taboru
$CTRL RLC 10001


MASS 0
MASS LC 201
CTRL MCON 3

LET#XLS.NAME "C:\SOFI\TESTY\DYNAMIKA\E1_V3\DANE.xlsx"
LET#XLS.SHEET "VRE"


GRP -
GRP 10 RADA #A RADB #B

sto#lb 28
sto#lt 300
sto#STEP 0.0051
STO#NODE 505
STO#BEAM 10046


LOOP#K 10
    LET#N XLS.READ(31,3+1*#K)
    LET#LC1 XLS.READ(26,3+1*#K)

    LOOP#S #N
    LET#ROW 28+1*#S
    LET#V XLS.READ(#ROW,3+1*#K)
    LET#V #V/3.6              $ SPEED in m/sec from km/h

    LET#TT 1.5*(#lb+#lt)/#V

    LC 100+#LC1
    STEP N #TT/#STEP DT #STEP A #A B #B
    CONT nr 11000 V #V tmin 0/#V
$    EXTR U  max 1000+10*#K+1*#N+2 min 1000+10*#K+1*#N+1
     EXTR A  max 1000+10*#K+1*#S+2 min 1000+10*#K+1*#S+1
$    EXTR MY max 1000+10*#K+1*#N+2 min 1000+10*#K+1*#N+1
    ENDLOOP

ENDLOOP

END

I don’t know what is wrong but in other modules this kind of looping worked for me. I observed that I get values only for the speeds as #N=3 and not: 1st: N=0, N=1, N=2 .. (rows 28 - 30 in Excel).
If I manually put #N=1 i get values for speeds from row nr 28, #N=2, row nr 29 etc.

image
image589×429 11.4 KB

However I’m not able to get all 3 speeds for LC 101, all 3 speeds for LC 102 etc..

Is it possible?

Thanks,

Szymon

2

Since no one replied, I just missed one “END” before “ENDLOOP”.

Here is the code:

LOOP#K 10
    LET#N XLS.READ(31,14+1*#K)
    LET#LC1 XLS.READ(26,14+1*#K)

    LOOP#S #N
    LET#ROW 28+1*#S
    LET#V1 XLS.READ(#ROW,14+1*#K)
    LET#V #V1/3.6              $ SPEED in m/sec from km/h
    LET#TT 1.5*(#lb+#lt)/#V

    LC 100+#LC1
    STEP N #TT/#STEP DT #STEP A #A B #B
    CONT nr 11000 V #V tmin 0/#V
     LET#LCST 1000+100*#K+2*#S
     #DEFINE LCX=#LCST
$    EXTR U  max 1000+10*#K+1*#N+2 min 1000+10*#K+1*#N+1
     EXTR A  max #LCST min #LCST+1
$    EXTR MY max 1000+10*#K+1*#N+2 min 1000+10*#K+1*#N+1

    HIST A-Z #NODE LCST #LCST
    END
    ENDLOOP
ENDLOOP

END

Sz.