Theory of Machines

Subject At a Glance

Compulsory Items
S. NoTopic/ItemStatusTime of Completion
1TheoryOnly Chapters 6 and 7 are pendingBy June end
2GATE Questions VideosOnly 2019, 2020 years pendingBy June end
3GATE Question as QuizzesOnly 2019, 2020 years pendingBy June end
4Class NotesNot ReadyBy Aug End
Optional Items
4ESE Objective QuizzesAvailable in eclasses 
5ESE Mains Q&AsPdfs will be provided 
6IAS Prelims Q&AsPdfs will be provided 
7IAS MainsPdfs will be provided 

Details of Topics Covered

TheoryVideo Time
1.1 Introduction: Kinematic link0:25:57
1.2 Kinematic pair: Lower and higher pair, No of constraints in a pair 
1.3 Degrees of freedom with examples1:04:50
1.4 Redundant degrees of freedom, Minimum no of links in a unit DOF mechanisms0:50:41
1.5 Inversion of 4 bar mechanism0:35:54
1.6 Inversions of slider-crank mechanism: Quick Return Mechanisms1:00:41
1.7 Inversions of Double slider mechanism0:18:46
1.8 Mechanical advantage of a mechanism and its variation with transmission angle0:41:56
1.9 Velocity of mechanism by using vector analysis0:40:54
1.10 Vector velocity analysis of 4-bar mechanism0:34:14
1.11 Vector velocity analysis of slider crank and quick return mechanisms0:52:13
1.12 Vector velocity analysis of double slider linkage, velocity of rubbing of pin joints0:18:33
1.13 Velocities using Instantaneous centre(I.C) method, location of I.C0:48:38
1.14 Instantaneous centre velocities for 4-bar, slider crank and double slider mechanisms1:04:06
1.15 Velocity of circular disk rotating on the ground without slipping0:42:10
1.16 Acceleration analysis0:26:30
1.17 Coriolis acceleration0:36:28
1.18 Acceleration analysis of four bar mechanisms0:32:54
1.19 coriolis acceleration of an ant walking on a disk, other examples0:26:36
  
Gate 
1.30 Analysis of Planar Mechanisms Gate Mech, Previous Objective Questions, Year 1992 – [2M][1Q]0:06:13
1.31 Analysis of Planar Mechanisms Gate Mech, Previous Objective Questions, Year 1993 – [2M][1Q]0:03:14
1.32 Analysis of Planar Mechanisms Gate Mech, Previous Objective Questions, Year 1995 – [2M][1Q]0:07:09
1.33 Analysis of Planar Mechanisms Gate Mech, Previous Objective Questions, Year 1996 – [2M ][1Q]0:09:08
1.34 Analysis of Planar Mechanisms Gate Mech, Previous Objective Questions, Year 1999 – [2m][1Q]0:21:16
1.35 Analysis of Planar Mechanisms Gate Mech, Previous Objective Questions, Year 2003 – [1M][1Q] – 10:03:10
1.36 Analysis of Planar Mechanisms Gate Mech, Previous Objective Questions, Year 2003 – [1M[1Q] – 20:02:44
1.37 Analysis of Planar Mechanisms Gate Mech, Previous Objective Questions, Year 2003 – [2M][1Q]0:11:15
1.38 Analysis of Planar Mechanisms Gate Mech, Previous Objective Questions, Year 2003 -[2M][1Q]0:09:50
1.39 Analysis of Planar Mechanisms Gate Mech, Previous Objective Questions, Year 2004 – [1M][1M]0:04:34
1.40 Analysis of Planar Mechanisms Gate Mech, Previous Objective Questions, Year 2004 – [2M][1Q] – 10:11:44
1.41 Analysis of Planar Mechanisms Gate Mech, Previous Objective Questions, Year 2004 -[2M][1Q] – 20:11:35
1.42 Analysis of Planar Mechanisms Gate Mech, Previous Objective Questions, Year 2005 -[1M][1Q] – 10:01:38
1.43 Analysis of Planar Mechanisms Gate Mech, Previous Objective Questions, Year 2006 – [1M][1Q] – 10:01:50
1.44 Analysis of Planar Mechanisms Gate Mech, Previous Objective Questions, Year 2007 – [1M][1Q] – 10:16:57
1.45 Analysis of Planar Mechanisms Gate Mech, Previous Objective Questions, Year 2007 – [1M][Q] – 20:18:18
1.46 Analysis of Planar Mechanisms Gate Mech, Previous Objective Questions, Year 2008 – [1M][1Q]0:01:24
1.47 Analysis of Planar Mechanisms Gate Mech, Previous Objective Questions, Year 2009 – [1M][1Q]0:05:14
1.48 Analysis of Planar Mechanisms Gate Mech, Previous Objective Questions, Year 2010 – [1M][1Q] – 10:04:02
1.49 Analysis of Planar Mechanisms Gate Mech, Previous Objective Questions, Year 2010 – [1M][1Q] – 20:03:24
1.50 Analysis of Planar Mechanisms Gate Mech, Previous Objective Questions, Year 2010 – [1M][1Q] – 30:07:49
1.51 Analysis of Planar Mechanisms Gate Mech, Previous Objective Questions, Year 2010 – [2M[[1Q]0:13:52
1.52 Analysis of Planar Mechanisms Gate Mech, Previous Objective Questions, Year 2011 – [1M][1Q]0:07:58
1.53 Analysis of Planar Mechanisms Gate Mech, Previous Objective Questions, Year 2011 – [2M][1Q]0:10:17
1.54 Analysis of Planar Mechanisms Gate Mech, Previous Objective Questions, Year 2012 – [1M][1Q] – 10:04:07
1.55 Analysis of Planar Mechanisms Gate Mech, Previous Objective Questions, Year 2012 – [1M][1Q] – 20:11:58
1.56 Analysis of Planar Mechanisms Gate Mech, Previous Objective Questions, Year 2013 – [1M][[1Q] – 10:06:29
1.57 Analysis of Planar Mechanisms Gate Mech, Previous Objective Questions, Year 2013 – [1M][1Q] – 20:07:02
1.58 Analysis of Planar Mechanisms Gate Mech, Previous Objective Questions, Year 2014 – [1M][1Q] – 10:06:57
1.59 Analysis of Planar Mechanisms Gate Mech, Previous Objective Questions, Year 2014 – [1M][1Q] – 20:15:16
1.60 Analysis of Planar Mechanisms Gate Mech, Previous Objective Questions, Year 2014 – [1M][1Q] – 30:03:32
1.61 Analysis of Planar Mechanisms Gate Mech, Previous Objective Questions, Year 2014 – [1M][1Q] – 40:03:00
1.62 Analysis of Planar Mechanisms Gate Mech, Previous Objective Questions, Year 2014 – [2M][1Q] – 10:09:55
1.63 Analysis of Planar Mechanisms Gate Mech, Previous Objective Questions, Year 2014 – [2M][1Q] – 20:15:47
1.64 Analysis of Planar Mechanisms Gate Mech, Previous Objective Questions, Year 2015 – [1M][1Q] – 10:03:03
1.65 Analysis of Planar Mechanisms Gate Mech, Previous Objective Questions, Year 2015 – [1M][1Q] – 20:07:28
1.66 Analysis of Planar Mechanisms Gate Mech, Previous Objective Questions, Year 2015 -[2M][[1Q] – 10:11:36
1.67 Analysis of Planar Mechanisms Gate Mech, Previous Objective Questions, Year 2015 -[2M][1Q] – 20:03:24
1.68 Analysis of Planar Mechanisms Gate Mech, Previous Objective Questions, Year 2015 -[2M][1Q] – 30:08:37
1.69 Analysis of Planar Mechanisms Gate Mech, Previous Objective Questions, Year 2016 – [2M][1Q]0:23:15
1.70 Analysis of Planar Mechanisms Gate Mech, Previous Objective Questions, Year 2017 – [2M][1Q]0:15:34
1.71 Analysis of Planar Mechanisms Gate Mech, Previous Objective Questions, Year 2018 – [1m][1Q]0:05:31
  
ESE Prelims 
1.72 Analysis of planar mechanism ESE Mech, Previous Objective Questions, Year – 2003 [1Q]0:05:00
1.73 Analysis of planar mechanism ESE Mech, Previous Objective Questions, Year – 1994 [1Q]0:03:30
1.74 Analysis of planar mechanism ESE Mech, Previous Objective Questions, Year – 1995 [1Q]0:03:42
1.75 Analysis of planar mechanism ESE Mech, Previous Objective Questions, Year – 2000 [1Q]0:03:47
  

TheoryVideo Time
2.1 Introduction: Frictional disks0:18:22
2.2 Gear terminology0:55:19
2.3 Law of gearing for constant velocity ratio0:15:15
2.4 Teeth profiles: Cycloidal and Involute teeth profiles0:25:40
2.5 Comparison of Cycloidal and Involute teeth profiles0:10:33
2.6 Path of contact, arc of contact and contact ratio0:26:45
2.7 Example problem on path of contact and arc of contact0:25:28
2.8 Example problem on path of contact and arc of contact0:16:51
2.9 Interference in involute gears and ways to avoid the interference0:46:21
2.10 Example problem on interference0:12:32
2.11 Gear trains introduction0:12:50
2.12 Simple gear train: Tumbler mechanism0:30:11
2.13 Compound gear train with 2 speed sliding gear box example0:22:32
2.14 Reverted gear train with wall clock example0:30:43
2.15 Example problem of reverted gear train0:11:53
2.16 Epicyclic gear train with tabular velocity method0:37:48
2.17 Epicyclic gear train velocity analysis0:33:17
2.18 Example problem of epicyclic gear train0:14:22
2.19 Torques in the epicyclic gear trains0:24:22
2.20 Classification of gears (After 2.1 video) 
2.21 Helical gears(After 2.2 video) 
Summary0:22:45
  
  
Gate 
2.30 Gear and Gear Trains Gate Mech, Previous Objective Questions, Year 1995 [2m] [1Q]0:07:28
2.31 Gear and Gear Trains Gate Mech, Previous Objective Questions, Year 1996 [5m] [1Q]0:06:43
2.32 Gear and Gear Trains Gate Mech, Previous Objective Questions, Year 1999 [5m] [1Q]0:02:51
2.33 Gear and Gear Trains Gate Mech, Previous Objective Questions, Year 2001 [2m] [1Q]0:04:43
2.34 Gear and Gear Trains Gate Mech, Previous Objective Questions, Year 2003 [2m] [1Q]0:16:01
2.35 Gear and Gear Trains Gate Mech, Previous Objective Questions, Year 2006 [2m] [1Q]0:09:37
2.36 Gear and Gear Trains Gate Mech, Previous Objective Questions, Year 2009 [2m] [1Q]0:07:30
2.37 Gear and Gear Trains Gate Mech, Previous Objective Questions, Year 2010 [2m] [1Q]0:09:38
2.38 Gear and Gear Trains Gate Mech, Previous Objective Questions, Year 2013[2m] [1Q]0:06:42
2.39 Gear and Gear Trains Gate Mech, Previous Objective Questions, Year 2014[2m] [1Q]0:03:45
2.40 Gear and Gear Trains Gate Mech, Previous Objective Questions, Year 2015[1m][1Q]A0:06:53
2.41 Gear and Gear Trains Gate Mech, Previous Objective Questions, Year 2016 [2m] [1Q]0:05:10
2.42 Gear and Gear Trains Gate Mech, Previous Objective Questions, Year 2017[2m] [1Q] – 10:04:46
2.43 Gear and Gear Trains Gate Mech, Previous Objective Questions, Year 2017[2m] [1Q] – 20:03:38
2.44 Gear and Gear Trains Gate Mech, Previous Objective Questions, Year 2018 [2m] [1Q]0:05:19
2.45 Gear and Gear Trains Gate Mech, Previous Objective Questions, Year 2018 [2m] [1Q]0:05:43
ESE Prelims 
2.60 Gear and Gear Trains ESE Mech, Previous Objective Questions, Year 2017 [1Q]0:04:38

TheoryVideo Time
3.1 Understanding the slider crank mechanism, In and Outer dead centers 
3.2 Velocity and Acceleration of piston 
3.3 Velocity and acceleration of connecting rod 
3.4 Engine force analysis 
3.5 Torque produced on the crank 
3.6 Example problem on engine forces 
  
GATE 
3.30 Dynamic For Analysis GATE mech, Previous Objective Questions, Year -1989-[5m]0:40:50
3.31 Dynamic For Analysis GATE mech, Previous Objective Questions, Year -1997-[2m]0:10:24
3.32 Dynamic For Analysis GATE mech, Previous Objective Questions, Year -1998-[2m]0:07:32
3.33 Dynamic For Analysis GATE mech, Previous Objective Questions, Year -2016-set-1,[2m]0:08:09
3.34 Dynamic For Analysis GATE mech, Previous Objective Questions, Year -2018-[2m]0:04:17



TheoryVideo Time
4.1 Basic Prerequisite0:20:14
4.2 Introduction to flywheels: Turning moment diagrams for various engines0:17:17
4.3 Maximum fluctuation energy, coefficient of fluctuation of speed0:23:08
4.4 How to calculate maximum fluctuation of energy from the turning moment diagram0:20:04
4.5 Examples to identify the maximum fluctuation of energy from turning moment diagrams0:29:04
4.6 Example problem on fluctuation of energy0:16:21
4.7 Example problem on fluctuation of energy0:19:22
4.8 Punching press0:25:52
4.9 Example problems on punching press0:23:28
4.10 Effect of centrifugal force on flywheels0:03:15
  
  
GATE Exam 
4.30 Flywheels, GATE Previous Objective Questions, Year – 1998 [1Q]0:03:15
4.31 Flywheels, GATE Previous Objective Questions, Year – 2001 [1Q]0:04:28
4.32 Flywheels, GATE Previous Objective Questions, Year – 2003 [1Q]0:05:34
4.33 Flywheels, GATE Previous Objective Questions, Year – 2006 [1Q]0:03:31
4.34 Flywheels, GATE Previous Objective Questions, Year – 2007 [1Q]0:02:12
4.35 Flywheels, GATE Previous Objective Questions, Year – 2013 [1Q]0:03:09
4.36 Flywheels, GATE Previous Objective Questions, Year – 2014 [1Q] – 10:03:49
4.37 Flywheels, GATE Previous Objective Questions, Year – 2014 [1Q] – 20:02:36
4.38 Flywheels, GATE Previous Objective Questions, Year – 2014 [1Q] – 30:08:04
4.39 Flywheels, GATE Previous Objective Questions, Year – 2015 [1Q]0:04:20
4.40 Flywheels, GATE Previous Objective Questions, Year – 2015 [1Q]0:07:07
4.41 Flywheels, GATE Previous Objective Questions, Year – 2016 [1Q]0:02:12
  
IAS Mains 
  
Flywheels, IAS Previous Objective Questions, Year – 2000-[4a,(ii)] 
Flywheels, IAS Previous Objective Questions, Year – 2009-[4a,(ii)] 
Flywheels, IAS Previous Objective Questions, Year – 2015 [4-b] 
  



TheoryVideo Time
5.1 Introduction: Difference between Flywheels and Governors0:21:47
5.2 Overview of different types of Governors0:22:15
5.3 Watt Governor 
5.4 Porter Governor0:33:23
5.5 Proell Governor0:17:00
5.6 Spring loaded governor: Hartnell and Hartung governors0:24:21
5.7 Example problem on spring controlled governor0:15:48
5.8 Characteristics of governor0:25:56
5.9 Controlling force of governor0:31:25
  
GATE 
  
ESE – Prelims 
5.60 Governors ESE Mech, Previous Objective Questions, Year – 2002 [1Q]0:05:31
5.61 Governors ESE Mech, Previous Objective Questions, Year – 2003 [1Q]0:05:49
5.62 Governors ESE Mech, Previous Objective Questions, Year – 2006 [1Q]0:03:41
5.63 Governors ESE Mech, Previous Objective Questions, Year – 2007 [1Q]0:01:16
5.64 Governors ESE Mech, Previous Objective Questions, Year – 2009 [1Q]0:02:06
5.65 Governors ESE Mech, Previous Objective Questions, Year – 2013 [1Q]0:03:04
5.66 Governors ESE Mech, Previous Objective Questions, Year – 2013 [1Q]0:12:48
5.67 Governors ESE Mech, Previous Objective Questions, Year – 2017 [1Q]0:02:43
5.68 Governors ESE Mech, Previous Objective Questions, Year – 2017 [1Q]0:03:22



TheoryVideo Time
8.1 Introduction: SHM, Time Period, Frequency, Amplitude of vibration0:33:03
8.2 Beats concept, vibration system important elements, Equivalent spring and damping constants for series and parallel connections0:48:19
8.3 Classification of vibrations0:21:50
8.4 Steps in Vibration analysis0:09:30
8.5 Elements in Vibration system: Mass. Spring and Damping0:45:00
8.6 Equation of Motion(EOM) of spring mass system(free vibrations)0:39:12
8 .7 Equation of motion(EOM) of spring mass system with Damping0:16:11
8.8 Conceptual clarity on Moment and Energy Methods to find natural frequencies0:22:09
8.9 Example problems(EOM, Natural frequency) on single Mass- Spring systems0:35:50
8.10 Example problems(EOM, Natural frequency) on vibrating system with Levers Part 10:39:58
8.11 Example problems(EOM, Natural frequency) vibrating system with Levers Par 20:15:01
8.12 Equation of motion of system with Circular Disk: Introduction0:30:53
8.13 Example problems(EOM) on systems with Circular Disk Part 10:12:43
8.14 Example problems(EOM) on systems with Circular Disk Part 20:38:26
8.15 Conceptual clarity on Moment and Energy Methods to find natural frequencies (keep video again here)0:22:09
8.16 Natural frequency of a Ring(Flywheel) hanged by a nail to the wall0:21:26
8.17 Natural frequency of Half Solid Cylinder on the floor0:21:03
8.18 Natural frequency of a straight rod kept on the half Cylinder0:10:40
8.19 Natural frequency of a solid circular Cylinder on a Concave surface0:22:49
8.20 Static Deflection method to find Natural frequency0:23:26
8.21 Static deflection method to spring and pulley system0:17:45
8.22 Transverse Methods: Static deflection method to find natural frequency0:09:27
8.23 Torsional Vibrations: Shaft and disk system with and without shaft mass0:23:16
8.24 Torsional Vibrations: Shafts are in series and parallel connection0:13:27
8.25 Torsional Vibrations: Two rotor system on a shaft0:19:16
8.26 Amplitude of vibration of spring-mass system0:40:35
8.27 Example to find amplitude of vibration of spring mass system0:09:28
8.28 Amplitude of vibration of spring mass system with damping0:24:10
8.29 Over damping, critical damping and under damping0:37:36
8.30 Logarithmic decrement0:22:39
8.31 Example problems damping ratio and logarithmic decrement0:11:49
8.32 Forced Vibration of spring mass system0:40:15
8.33 Amplitude of Harmonic forced vibrations of a damped system0:52:24
8.34 Magnification Factor of steady state motion in forced vibrations0:24:45
8.35 Forced vibration of rotating and reciprocating masses0:25:30
8.36 Vibration Isolation: Force Transmissibility Ratio0:21:13
8.37 Understanding the Transmissibility Ratio0:17:46
8.38 Motion transmissibility ratio and vibration isolation materials0:25:57
8.39 Example problem on Transmissibility Ratio0:07:08
8.40 Whirling of the rotating shafts0:39:20
8.41Simplified formula of whirling speed deflection0:05:52
8.42 Example problem on whirling of a rotating shaft0:10:17
  
  
  
GATE 
8.43 Mechanical Vibrations Gate Mech, Previous Objective Questions, Year – 2000,2007,2008, 20011 [4Q][2m]0:08:37
8.44 Mechanical Vibrations Gate Mech, Previous Objective Questions, Year – 2001 [1Q][2m]0:15:28
8.45 Mechanical Vibrations Gate Mech, Previous Objective Questions, Year – 2003 [1Q][2m0:15:28
8.46 Mechanical Vibrations Gate Mech, Previous Objective Questions, Year – 2004 [1Q][2m]0:06:57
8.47 Mechanical Vibrations Gate Mech, Previous Objective Questions, Year – 2004 [1Q][2m]0:14:21
8.48 Mechanical Vibrations Gate Mech, Previous Objective Questions, Year – 2005 [1Q][2m]0:04:27
8.49 Mechanical Vibrations Gate Mech, Previous Objective Questions, Year – 2006 [1Q][2m]]0:04:51
8.50 Mechanical Vibrations Gate Mech, Previous Objective Questions, Year – 2006 [[2m]]0:08:02
8.51 Mechanical Vibrations Gate Mech, Previous Objective Questions, Year – 2007 [1Q][2m][7177]0:07:10
8.52 Mechanical Vibrations Gate Mech, Previous Objective Questions, Year – 2008 [1Q][2m]0:06:45
8.53 Mechanical Vibrations Gate Mech, Previous Objective Questions, Year – 2009 [1Q][2m0:04:31
8.54 Mechanical Vibrations Gate Mech, Previous Objective Questions, Year – 2012 [1Q][2m]0:04:11
8.55 Mechanical Vibrations Gate Mech, Previous Objective Questions, Year – 2013 [1Q][2m]0:10:06
8.56 Mechanical Vibrations Gate Mech, Previous Objective Questions, Year – 2014, 15,17 [4Q][2m] 
8.57 Mechanical Vibrations Gate Mech, Previous Objective Questions, Year – 2014 [1Q][2m]0:19:43
8.58 Mechanical Vibrations Gate Mech, Previous Objective Questions, Year – 2014[2m]0:01:56
8.59 Mechanical Vibrations Gate Mech, Previous Objective Questions, Year – 2014[2m][7205]0:03:16
8.60 Mechanical Vibrations Gate Mech, Previous Objective Questions, Year – 2016 ,[2m]0:07:53
8.61 Mechanical Vibrations Gate Mech, Previous Objective Questions, Year – 2017 ,[2m]0:12:31
8.62 Mechanical Vibrations Gate Mech, Previous Objective Questions, Year – 2018[2m]0:08:29
8.63 Mechanical Vibrations Gate Mech, Previous Objective Questions, Year – 2010[2m]0:25:22
8.64 Mechanical Vibrations Gate Mech, Previous Objective Questions, Year – 2015 ,[2m]0:06:26
  
  
  
ESE Prelims 
8.65 Mechanical Vibrations ESE, Previous Objective Questions, Year – 2009 [1Q]15:06

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