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P1P2P3 単純梁 問題8A) P124「材料力学演習(20221021)」をsympyでやってみたい。

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問題8A) P124 <「材料力学演習(20221021)一括(ver.3.3)」を勉強したい。#sympy

???タブレット等で、pdfを開く事ができないかも。??? 

sympyで

・ver0.1

# ver0.1
from sympy import *
var('P1,P2,P3,a,b,c,d,x,RA')
MAC    =RA*x             ;FAC=diff(MAC,x)
MCD    =MAC-P1*(x-a)     ;FCD=diff(MCD,x)
MDE    =MCD-P2*(x-a-b)   ;FDE=diff(MDE,x)
MEB    =MDE-P3*(x-a-b-c) ;FEB=diff(MEB,x)
RA_sol =solve(Eq(MEB.subs({x:a+b+c+d}),0),RA)[0]  #;print("#",RA_sol)
RA_sol1=(RA_sol).simplify()                       ;print("#",RA_sol1)
RA_sol2=(RA_sol).collect(P1).collect(P2)          ;print("#",RA_sol2)
print("#",P1+P2+P3-RA) 
# (P1*b + P1*c + P1*d + P2*c + P2*d + P3*d)/(a + b + c + d)
# (P1*(b + c + d) + P2*(c + d) + P3*d)/(a + b + c + d)
# P1 + P2 + P3 - RA

sympyのBeamで作図

(勉強中)

いつもの? sympyの実行環境と 参考のおすすめです。

(テンプレート)

いつもと違うおすすめです。

参考文献

>一部に等分布荷重を受ける単純支持はり
>JSME p89

ちょっと違うかも
>張出しばり 1)
>構造力学公式集 表5.5 張出しばりの公式 p154

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