Het torsiemoment bij thermische instabiliteit

Het torsiemoment bij thermische instabiliteit

Citation for published version (APA):

Liempd, van, J. H. (1986). Het torsiemoment bij thermische instabiliteit. (TH Eindhoven. Afd.

Werktuigbouwkunde, Vakgroep Produktietechnologie : WPB; Vol. WPA0377). Technische Universiteit Eindhoven.

Document status and date: Gepubliceerd: 01/01/1986

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Vakaroep Produktietechnologie en -Automatiserina

Het torsiemoment bij thermische instabiliteit.

1'\

...~_, J.H.van Liempd december 1986 VF-code 82

Verslag van een deel van de 11-opdracht 8egeleider: Dr Ir J.H. Dautzenbera

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rek"

PR INT "programma t.hermi sche i nst.ab i. 1i tei t"

PRINT"invoergegevens"

INF'UT"matel~iaal ";FILE$ INPUT"dichtheid rho ";RHO INPUT"soort warmte sw ";SW INPUT"aantal segmenten i\I";N INPUT"aantal st.appen X";X

INPUT"const genomen variabele 1<";1<

INPUT"warmteoverdrachtsc:oefficient alfa";ALFA

o

INPUT"verstevi gi ngse)·:p. n"; VS 10 INPUT"plast. canst C";C

20 INPUT"totale deformatie epstot";EF'STOT _.0 INF'UT"staafstraal R"; R 40 INPUT"staaflengte l";L 50 PI=4*ATN(1) PRINT PI DIM MWTOT(X) DIM SIG(N,X) DIM MW(N,X) DIM EPS(N,X) DIM W(X) DIM WTOT(X) MW«(2),J)=0

o

W(0)=l2)

o

FOR 1=1 TO N

o

FOR ..1=1 TO X

o

EPS(I,J)=EPSTOT*(J/X)*«I-.5)/N)

o

SIG(I,J)=C*«EPS(I,J»AVS>*EXP«(K*ALFA)/(10(2)(2)*RHO*SW))*EPS(I,J» 121 NEXT J 121 NEXT I

o

LPRINT"invoer:"

o

LPRINT"materiaal";FILE:f

o

LPRINT"dic:ht.heid rho";RHO; "kg/mm"'3"

o

LPRINT"soort warmte sw"; SW; "J/kgl<"

o

LPRINT"aant segmenten";N

o

LPRINT"aantal stappen";X

o

LPRINl "constan·te k"; K 121 LPRINT"alfa";ALFA

o

LPRINT"vel~stevigingsexp n";VS

o

LPRINT"plast constante C"; C; "N/mm'~'2"

t.0 LPRINT"tot def epstot"; EPSTOT (2) LPRINT"staafstraal";R;"mm" ..:.0 LPRINT

o

LPRINT "stap moment (2) FOR J=l TO X 121 FOR 1=1. TO N

o

MW(I,J)=MW(I-1,J)+«1/(3*SQR(3»)*2*PI*«R/N)A3)*«3*(IA 2»-(3*I)+],)*SIG(],J ) .0 NEXT I

o

MWTOT(J)=MW(N,J) 121 W(J)=(2*PI*L*C*(RA 2)*«EPSTOT*(J/X»A(VS+1»)/«VS+1)*(VS+3» 10 WTOT(J)=W(J)+W(J-l)

_121 IF MWTOT(J»WMMAX THEN WMMAX=MWTOT(J):JMAX=J _0 PRINT"moment van stap";.J; "is";MWTOT(J)

121 LPRINT USING" ### ";J;:L.PRINT USING" #######.# ";MWTOT(J);:LPRINT USING" #.# "; EPS (N,J) ; : LPRINT USING" ##f.t#######. ###";WTOT (J)

o

NEXT J

o

LPRINT

o

LPRINT"het. ma)<i.male moment is'';WMI'1AX;''Nmm, stap";JMAX

o

LPRINT"de totale deformatiearbeid bij stap(";JMAX;") is";WTOT(.JMAX) 121 FOR J=l TO X

o

NEXT J

10 SCREEN 2

.0 PRJNT"het ma:dmale moment is";WMMAX; "Nmm"

40 PSET(eJ*6.4) ,200-(MWTOTeJ)/(WMMAX/200») 50 NEXT ,J

6121 LPHINT 70 LPRINT

8121 l..F'RINT"de spanningen oler de doo,..snede"

90 LPRINT:LPRINT ;

lZl FOR 1=:1 TO N :LPRINT USING"######";I;:NEXT I 10 LPRINT

.121 FOR J=1 TO X

-0 LF'RINT J;

121 FOR 1=1. TO N

o

LPRINT USING" ####.#";SIG(I,J);

l2l PSETCCJ*6.4),2121121-(SIGCI,J)/3»

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NEXT I

(2) L..PRINT

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