fayu

Last seen: ungefär en månad ago | Active since 2024

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Why is this matlab program not able to solve accurately?
syms E_b I_b omega m2 J pho_b A_b l beta = (omega^2*pho_b*A_b/(E_b*I_b))^(1/4); B=[E_b*I_b*(-beta^3*cos(beta*l)-beta^3*cosh(be...

ungefär en månad ago | 1 answer | 0

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Question

I want to solve the equation in the picture and use ode45 to solve it, but after running for 5 hours there is still no result, I would like to ask if the program is written wrong or is there any optimization?
%先对方程进行处理，为使用ode45准备 % clc % clear % syms r dx2 rm l varphi dvarphi2 dvarphi1 theta1 theta C1 dv1 Lb C2 dvarphi % syms g C...

2 månader ago | 1 answer | 0

1

answer