7 files changed, 135 insertions, 0 deletions
diff --git a/1835/CH8/EX8.1/Ex8_1.sce b/1835/CH8/EX8.1/Ex8_1.sce
new file mode 100755
index 000000000..7930b8cca
--- /dev/null
+++ b/1835/CH8/EX8.1/Ex8_1.sce
@@ -0,0 +1,25 @@
+//CHAPTER 8 ILLUSRTATION 1 PAGE NO 221
+//TITLE:BALANCING OF ROTATING MASSES
+pi=3.141
+clc
+clear
+mA=12//       mass of A in kg
+mB=10//       mass of B in kg
+mC=18//       mass of C in kg
+mD=15//       mass of D in kg
+rA=40//       radius of A in mm
+rB=50//       radius of B in mm
+rC=60//       radius of C in mm
+rD=30//       radius of D in mm
+theta1=0//    angle between A-A in degrees
+theta2=60//   angle between A-B in degrees
+theta3=130//  angle between A-C in degrees
+theta4=270//  angle between A-D in degrees
+R=100//  radius at which mass to be determined in mm
+//====================================================
+Fh=(mA*rA*cosd(theta1)+mB*rB*cosd(theta2)+mC*rC*cosd(theta3)+mD*rD*cosd(theta4))/10//    vertical component value in kg cm
+Fv=(mA*rA*sind(theta1)+mB*rB*sind(theta2)+mC*rC*sind(theta3)+mD*rD*sind(theta4))/10//   horizontal component value in kg cm
+mb=(Fh^2+Fv^2)^.5/R*10//     unbalanced mass in kg
+theta=atand(Fv/Fh)//   position in degrees 
+THETA=180+theta//       angle with mA
+printf('magnitude of unbalaced mass=%.3f kg\n angle with mA= %.3f degrees',mb,THETA)
diff --git a/1835/CH8/EX8.2/Ex8_2.sce b/1835/CH8/EX8.2/Ex8_2.sce
new file mode 100755
index 000000000..71b88b9fe
--- /dev/null
+++ b/1835/CH8/EX8.2/Ex8_2.sce
@@ -0,0 +1,17 @@
+//CHAPTER 8 ILLUSRTATION 2 PAGE NO 222
+//TITLE:BALANCING OF ROTATING MASSES
+pi=3.141
+clc
+clear
+mA=5//   mass of A in kg
+mB=10//   mass of B in kg
+mC=8//     mass of C in kg
+rA=10//   radius of A in cm
+rB=15//   radius of B in cm
+rC=10//    radius of C in cm
+rD=10//   radius of D in cm
+rE=15//   radius of E in cm
+//============================
+mD=182/rD//    mass of D in kg by mearument
+mE=80/rE//     mass of E in kg  by mearument
+printf('mass of D= %.3f kg\nmass of E= %.3f kg',mD,mE)
diff --git a/1835/CH8/EX8.3/Ex8_3.sce b/1835/CH8/EX8.3/Ex8_3.sce
new file mode 100755
index 000000000..a5e5bf4ea
--- /dev/null
+++ b/1835/CH8/EX8.3/Ex8_3.sce
@@ -0,0 +1,20 @@
+//CHAPTER 8 ILLUSRTATION 3 PAGE NO 223
+//TITLE:BALANCING OF ROTATING MASSES
+pi=3.141
+clc
+clear
+mA=200//       mass of A in kg
+mB=300//       mass of B in kg
+mC=400//       mass of C in kg
+mD=200//       mass of D in kg
+rA=80//       radius of A in mm
+rB=70//       radius of B in mm
+rC=60//       radius of C in mm
+rD=80//       radius of D in mm
+rX=100//      radius of X in mm
+rY=100//     radius of Y in mm
+//=====================
+mY=7.3/.04//    mass of Y in kg by mearurement
+mX=35/.1//      mass of X in kg by mearurement
+thetaX=146//   in degrees by mesurement
+printf('mass of X=%.3f kg\n mass of Y=%.3f kg\n angle with mA=%.0f degrees',mX,mY,thetaX)
diff --git a/1835/CH8/EX8.4/Ex8_4.sce b/1835/CH8/EX8.4/Ex8_4.sce
new file mode 100755
index 000000000..69e41ed5d
--- /dev/null
+++ b/1835/CH8/EX8.4/Ex8_4.sce
@@ -0,0 +1,17 @@
+//CHAPTER 8 ILLUSRTATION 4 PAGE NO 225
+//TITLE:BALANCING OF ROTATING MASSES
+pi=3.141
+clc
+clear
+mB=30//       mass of B in kg
+mC=50//       mass of C in kg
+mD=40//       mass of D in kg
+rA=18//       radius of A in cm
+rB=24//       radius of B in cm
+rC=12//       radius of C in cm
+rD=15//       radius of D in cm
+//=============================
+mA=3.6/.18//         mass of A by measurement in kg
+theta=124//          angle with mass B in degrees by measurement in degrees
+y=3.6/(.18*20)//     position of A from B
+printf('mass of A=%i kg\n angle with mass B=%i degrees\n position of A from B=%i m towards right of plane B',mA,theta,y)
diff --git a/1835/CH8/EX8.5/Ex8_5.sce b/1835/CH8/EX8.5/Ex8_5.sce
new file mode 100755
index 000000000..898ac764a
--- /dev/null
+++ b/1835/CH8/EX8.5/Ex8_5.sce
@@ -0,0 +1,18 @@
+//CHAPTER 8 ILLUSRTATION 5 PAGE NO 226
+//TITLE:BALANCING OF ROTATING MASSES
+pi=3.141
+clc
+clear
+mB=10//       mass of B in kg
+mC=5//       mass of C in kg
+mD=4//       mass of D in kg
+rA=10//       radius of A in cm
+rB=12.5//       radius of B in cm
+rC=20//       radius of C in cm
+rD=15//       radius of D in cm
+//=====================================
+mA=7//      mass of A in kg by mesurement
+BC=118//     angle between B and C in degrees by mesurement
+BA=203.5//   angle between B and A in degrees by mesurement
+BD=260//     angle between B and D in degrees by mesurement
+printf('Mass of A=%i kg\n angle between B and C=%i degrees\nangle between B and A= %.1f degrees\n angle between B and D= %i degrees',mA,BC,BA,BD)
diff --git a/1835/CH8/EX8.6/Ex8_6.sce b/1835/CH8/EX8.6/Ex8_6.sce
new file mode 100755
index 000000000..44903ab01
--- /dev/null
+++ b/1835/CH8/EX8.6/Ex8_6.sce
@@ -0,0 +1,16 @@
+//CHAPTER 8 ILLUSRTATION 6 PAGE NO 228
+//TITLE:BALANCING OF ROTATING MASSES
+pi=3.141
+clc
+clear
+mB=36//       mass of B in kg
+mC=25//       mass of C in kg
+rA=20//       radius of A in cm
+rB=15//       radius of B in cm
+rC=15//       radius of C in cm
+rD=20//       radius of D in cm
+//==================================
+mA=3.9/.2//       mass of A in kg by measurement
+mD=16.5//        mass of D in kg by measurement
+theta=252//      angular position of D from B by measurement in degrees
+printf('Mass of A= %.1f kg\n Mass od D= %.1f kg\n  Angular position of D from B= %i degrees',mA,mD,theta)
diff --git a/1835/CH8/EX8.7/Ex8_7.sce b/1835/CH8/EX8.7/Ex8_7.sce
new file mode 100755
index 000000000..a3864251d
--- /dev/null
+++ b/1835/CH8/EX8.7/Ex8_7.sce
@@ -0,0 +1,22 @@
+//CHAPTER 8 ILLUSRTATION 7 PAGE NO 229
+//TITLE:BALANCING OF ROTATING MASSES
+
+clc
+clear
+pi=3.141
+mA=48//     mass of A in kg
+mB=56//       mass of B in kg
+mC=20//       mass of C in kg
+rA=1.5//       radius of A in cm
+rB=1.5//       radius of B in cm
+rC=1.25//       radius of C in cm
+N=300//   speed in rpm
+d=1.8//   distance between bearing in cm
+//================================
+w=2*pi*N/60//        angular speed in rad/s
+BA=164//    angle between pulleys B&A in degrees by measurement
+BC=129//    angle between pulleys B&C in degrees by measurement
+AC=67//     angle between pulleys A&C in degrees by measurement
+C=.88*w^2//    out of balance couple in N
+L=C/d//    load on each bearing in N
+printf('angle between pulleys B&A=%i degrees\n angle between pulleys B&C= %i degrees\n angle between pulleys A&C= %i degrees\n out of balance couple= %.3f N\n load on each bearing= %.3f N',BA,BC,AC,C,L)