From 7f60ea012dd2524dae921a2a35adbf7ef21f2bb6 Mon Sep 17 00:00:00 2001 From: prashantsinalkar Date: Tue, 10 Oct 2017 12:27:19 +0530 Subject: initial commit / add all books --- 3532/CH4/EX4.5.1/Ex4_8.sce | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) create mode 100644 3532/CH4/EX4.5.1/Ex4_8.sce (limited to '3532/CH4/EX4.5.1') diff --git a/3532/CH4/EX4.5.1/Ex4_8.sce b/3532/CH4/EX4.5.1/Ex4_8.sce new file mode 100644 index 000000000..b7f52cdb5 --- /dev/null +++ b/3532/CH4/EX4.5.1/Ex4_8.sce @@ -0,0 +1,17 @@ +clc +clear +mprintf('Mechanical vibrations by G.K.Grover\n Example 4.5.1\n') +//given data +X=0.015//amplitude of vibration of spring mass dashpot system in m +f=100//frquency of vibration of spring mass dashpot system in Hz +zeta=0.05 +fnD=22//damped natural frequency in Hz +m=0.5//mass in kg +//calculations +W=2*%pi*fnD +c=2*m*W*zeta// from Eqn 3.3.6 and Eqn 3.3.7 +Epercycl=%pi*c*(2*%pi*f)*X^2//Eqn 4.5.1...energy dissipated per cycle +Epersec=Epercycl*f//energy dissipated per sec +//output +mprintf(' The power required to vibrate spring mass dashpot system with \n an amplitude of 1.5 cm and at frequency of 100 Hz is %4.4f Watts',Epersec) +mprintf('\nNOTE: slight differnce in answer compared to textbook\n is due approximation of value of pi') -- cgit