diff options
Diffstat (limited to '2378/CH1/EX1.5/Exa_1_5.sce')
| -rw-r--r-- | 2378/CH1/EX1.5/Exa_1_5.sce | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/2378/CH1/EX1.5/Exa_1_5.sce b/2378/CH1/EX1.5/Exa_1_5.sce new file mode 100644 index 000000000..df07fea13 --- /dev/null +++ b/2378/CH1/EX1.5/Exa_1_5.sce @@ -0,0 +1,20 @@ +//equivalent k of crane +//Exa_1_5 +clc; +clear; + +//refer fig_1_27 +l1=sqrt(3^2 + 10^2 -(2*3*10*cosd(135))); //length FC in m +l2=10 //length of AB in m +A1=100e-6; //cross section area of FB in m^2 +A2=2500e-6; //cross section area of AB in m^2 +E1=207e9; //youngs modulus of material +E2=207e9; //youngs modulus of material +theta= acosd(( l1^2 + 3^2 -10^2) / (2*l1*3)); //angle theta in degree + +k1=(A1 * E1)/ l1; //spring constant of FB +k2=(A2 * E2)/ l2; //spring constant of AB + +keq= (k1*(cosd(45))^2) + (k2*((cosd(90-theta))^2)); //equivalent spring constant of system +disp(keq,"equivalent spring constant of system in N/m = "); +//note: the answer in the book is printed incorrectly as 26430400 N/m |