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Problems with while function

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Vihar Chervenkov
Vihar Chervenkov 2012-5-16
关闭： MATLAB Answer Bot 2021-8-20
close all
clear all
clc
syms x
Load=10000;
Bridge_Span=20.825;
Wheelbase=3.2;
BCM=10450; %bridge crane mass
M=1.17; %factor of safety
F=9.8*M*0.5*((BCM/2)+Load);
Delta_max_allowed=(1/800)*10;
J=((0.28*0.5^3)/12)-2*((0.134*0.468^3)/12);
E=2*10^11;
while (2*(int([F*x*(1*x)/(2*E*J)],x,0,5))<0.0125)
J=J+0.01
end
How can I increase the 2nd moment of area (J) until the deflection(the expression) is less then 12.5 mm or (0.0125)

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回答（1 个）

Sean de Wolski
Sean de Wolski 2012-5-16
How about fzero() to find where 'f(x)-0.0125 = 0'?

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