Merge pull request #4 from virtual-labs/dev

Simulation Updated and pretest and postest explainations updated

experiment/posttest.json

@@ -9,8 +9,8 @@
 
       },
       "explanations": {
-        "a": "Option b is corect",
-        "b": "It is proportional to square root of polar moment of inertia"
+        "a": "Option b is correct. It is proportional to square root of polar moment of inertia.",
+        "b": "Correct, the right answer is (b). It is proportional to square root of polar moment of inertia"
       },
       "correctAnswer": "b",
       "difficulty": "intermediate"
@@ -22,8 +22,8 @@
         "b": "False"
       },
       "explanations": {
-        "a": "Torsional stifnees is not directly proportional to angular twist",
-        "b": "Torsional stiffness is inversly proportional to angular twist"
+        "a": "Option b is correct. Torsional stifnees is not directly proportional to angular twist",
+        "b": "Correct, the right answer is (b). Torsional stiffness is inversly proportional to angular twist"
       },
       "correctAnswer": "b",
       "difficulty": "intermediate"
@@ -35,8 +35,8 @@
         "b": "False"
       },
       "explanations": {
-        "a": "It is the ratio of product of Shear modulus and polar moment of inertia to length",
-        "b": "Option a is correct"
+        "a": "Correct, the right answer is (a). It is the ratio of product of Shear modulus and polar moment of inertia to length.",
+        "b": "Option a is correct. It is the ratio of product of Shear modulus and polar moment of inertia to length."
       },
       "correctAnswer": "a",
       "difficulty": "intermediate"
@@ -50,10 +50,10 @@
         "d": "None of the above"
       },
       "explanations": {
-        "a": "Rotation in same direction does not result in torque",
-        "b": "Rotation in opposite direction results in torque",
-        "c": "Option b is correct",
-        "d": "Option b is correct"
+        "a": "The right answer is (b). Rotation in same direction does not result in torque.",
+        "b": "Correct, the right is (b). Rotation in opposite direction results in torque.",
+        "c": "Option b is correct. Rotation in opposite direction results in torque.",
+        "d": "Option b is correct. Rotation in opposite direction results in torque."
       },
       "correctAnswer": "b",
       "difficulty": "beginner"
@@ -67,10 +67,10 @@
         "d": "None of the above"
       },
       "explanations": {
-        "a": "The system has more than one rotors",
-        "b": "The system has two rotors",
-        "c": "Option b is correct",
-        "d": "Option b is correct"
+        "a": "The right answer is (b). The system has more than one rotors so the system is considered as 2 DOF system and does not have one mode but will have 2 modes.",
+        "b": "Correct, the right is (b). The system has two rotors(or masses), so the system is considered as 2 DOF system and has 2 modes.",
+        "c": "Option b is correct. The system has two rotors(or masses), so the system is considered as 2 DOF system and has 2 modes.",
+        "d": "Option b is correct. The system has two rotors(or masses), so the system is considered as 2 DOF system and has 2 modes."
       },
       "correctAnswer": "b",
       "difficulty": "intermediate"

experiment/pretest.json

@@ -10,10 +10,10 @@
         "d": "None of the above"
       },
       "explanations": {
-        "a": "Torsion cannot be achieved in this position",
-        "b": "Torisional vibration occurs at this position",
-        "c": "As option b is correct",
-        "d": "As option b is correct"
+        "a": "The right answer is (b). Torsion cannot be achieved in this position",
+        "b": "Correct, the right answer is (b). Torisional vibration only occurs at this position",
+        "c": "As option b is correct. Torsional vibation occurs along the axis not perpendicular to the axis of shaft.",
+        "d": "As option b is correct. Torsional vibation occurs along the axis not perpendicular to the axis of shaft."
       },
       "correctAnswer": "b",
       "difficulty": "beginner"
@@ -27,10 +27,10 @@
         "d": "A system of Disc and Shaft"
       },
       "explanations": {
-        "a": "A mass and spring is analogous to disc and shaft ",
-        "b": "The disk and mass plays the same role in a system ",
-        "c": "A sring is assumed have linear motion in this concept",
-        "d": "A system of Disc and Shaft represents a torisonal system"
+        "a": "The right answer is (d). A mass and spring is analogous to disc and shaft. ",
+        "b": "The right answer is (d). The disk and mass plays the same role in a system. ",
+        "c": "The right answer is (d). A sring is assumed have linear motion in this concept.",
+        "d": "Correct, the right answer is (d). A system of Disc and Shaft represents a torisonal system."
       },
       "correctAnswer": "d",
       "difficulty": "beginner"
@@ -44,10 +44,10 @@
         "d": "None of the above"
       },
       "explanations": {
-        "a": "It is the ratio of torque and angular twist",
-        "b": "It is the ratio of product of Shear modulus and polar moment of inertia to length",
-        "c": "It can be defined in both the ways",
-        "d": "Option c is correct"
+        "a": "The right answer is (c). It is the ratio of torque and angular twist.",
+        "b": "The right answer is (c). It is the ratio of product of Shear modulus and polar moment of inertia to length.",
+        "c": "Correct, the right answer is (c). It can be defined in both the ways.",
+        "d": "Option c is correct. It is the ratio of torque and angular twist and also the ratio of product of Shear modulus and polar moment of inertia to length."
       },
       "correctAnswer": "b",
       "difficulty": "intermediate"
@@ -60,8 +60,8 @@
 
       },
       "explanations": {
-        "a": "Stiffness is resistance to force that causes deformation",
-        "b": "Option a is correct"
+        "a": "Correct, the right answer is (a). Stiffness is resistance to force that causes deformation.",
+        "b": "Option a is correct. Stiffness is resistance to force that causes deformation"
       },
       "correctAnswer": "a",
       "difficulty": "beginner"
@@ -75,10 +75,10 @@
         "d": "All the above"
       },
       "explanations": {
-        "a": "Intermintent combustion and crank shaft causes torsional vibration",
-        "b": "Forces acing on the piston causes torsional vibration",
-        "c": "If shafts are not parallel, torsional vibration occurs",
-        "d": "All are examples o sources of vibration"
+        "a": "The right answer is (d). Intermintent combustion and crank shaft causes torsional vibration",
+        "b": "The right answer is (d). Forces acing on the piston causes torsional vibration",
+        "c": "The right answer is (d). If shafts are not parallel, torsional vibration occurs",
+        "d": "Correct, the right answer is (d). All are examples of sources of vibration"
       },
       "correctAnswer": "d",
       "difficulty": "intermediate"

experiment/procedure.md

@@ -1,21 +1,24 @@
-Given Data:
-1. T<sub>0</sub> - Torque (Nm)
-2. &omega; - Input Angular Frequency (rad/s)
-3. k<sub>1</sub> - Stiffness of Disc 1 (Nm/rad)
-4. J<sub>1</sub> - Polar Moment of Inertia of Disc 1 (kgm<sup>2</sup>)
-5. k<sub>2</sub> - Stiffness of Disc 2 (NM/rad)
-6. J<sub>2</sub> - Polar Moment of Inertia Disc 2 (kgm<sup>2</sup>)
+### Procedure
 
-The experiment is based on the theory of torsional vibrations of a two-degree-of-freedom system, wherein the discs are represented in terms of their moment of inertia. These oscillations can be changed by varying  T<sub>0</sub>, &omega;, k<sub>1</sub>, J<sub>1</sub>, k<sub>2</sub>, and J<sub>2</sub>. 
+<div style="text-align:left">
+  Click on the Simulation icon <img src="images/simulation.png" alt="Alt text" style="height:80px; width:80px;">  to view the simulation. 
 
-1. Clicking on the simulation tab will open the simulator with the discs oscillating with default values.
+   ![Alt text](images/Screen11.png)
+
+   In order to view the variable section click on the Variable icon. <img src="images/var1.png" alt="Alt text" style="height:80px; width:80px;">
 
-![Alt text](images/6.png) 
+   ![Alt text](images/variable11.png)
 
-Change the values to observe different responses of the system.
+   Click on Play icon <img src="images/play1.png" alt="Alt text" style="height:80px; width:80px;"> to run the simulation and click on Pause icon <img src="images/pause.png" alt="Alt text" style="height:80px; width:80px;"> to stop it.
 
-2. Clicking on the graph button will show the frequency response curves
+   <!-- Click on the Next icon  <img src="images/next2.png" alt="Alt text" style="height:80px; width:80px;"> to go further.  
 
-![Alt text](images/7.png) 
+   ![Alt text](images/screen2.png) -->
 
-Click on the back button to view the first page.
+   Click on the Next or Prev icon<img src="images/prenex.png" alt="Alt text" style="height:80px; width:80px;"> to cycle through different pages. 
+
+   ![Alt text](images/screen21.png)
+
+click on the result icon to view the result.<img src="images/result.png" alt="Alt text" style="height:80px; width:80px;"> 
+![Alt text](images/result11.png)
+</div>