Engineering Mechanics-II

Course Topics

• INTRODUCTION
• Friction
• Types of Friction
• Friction Between Unlubricated Surfaces
• Limiting Friction
• Laws of Static Friction
• Laws of Kinetic or Dynamic Friction
• Laws of Solid Friction
• Laws of Fluid Friction
• Coefficient of Friction & Limiting Angle of Friction
• Angle of Repose
• Minimum Force Required to Slide a Body on a Rough Horizontal Plane
• Friction of a Body Lying on a Rough Inclined Plane
• Efficiency of Inclined Plane
• Screw Friction
• Screw Jack
• Torque Required to Lift the Load by a Screw Jack
• Torque Required to Lower the Load by a Screw Jack
• Efficiency of a Screw Jack
• Over Hauling and Self Locking Screws
• Efficiency of Self Locking Screws
• Friction in Journal Bearing-Friction Circle
• Friction of Pivot and Collar Bearing
• Flat Pivot Bearing
• Conical Pivot Bearing
• Trapezoidal or Truncated Conical Pivot Bearing
• Flat Collar Bearing
• Friction Clutches
• Single Disc or Plate Clutch
• Multiple Disc Clutch
• Cone Clutch
• Centrifugal Clutch
• Governors
• Types of Governors
• Centrifugal Governors
• Terms Used in Governors
• Watt Governor
• Porter Governor
• Proell Governor
• Hartnell Governor
• Hartung Governor
• Wilson-Hartnell Governor
• Pickering Governor
• Sensitiveness of Governors
• Stability & Isochronous of Governors
• Hunting
• Effort and Power of a Governor
• Effort and Power of a Porter Governor
• Controlling Force
• Coefficient of Insensitiveness
• Brakes
• Single Block Brake

INTRODUCTION

Engineering mechanics is the study of forces that act on bodies and the resultant motion that those bodies experience. Engineering mechanics subject involves the application of the principles of mechanics to solve real-time engineering problems.Engineering mechanics is the application of mechanics to solve problems involving common engineering elements. The goal of this Engineering Mechanics course is to expose students to problems in mechanics as applied to plausibly real-world scenarios.

Engineering mechanics is the study of forces that act on bodies and the resultant motion that those bodies experience. Engineering mechanics subject involves the application of the principles of mechanics to solve real-time engineering problems.

Types of Engineering Mechanics:

Engineering mechanics can be broadly classified into two types. They are:

1. Statics and
2. Dynamics

Statics:

Statics is the branch of mechanics that deals with the study of objects at rest. Objects at rest may or may not be under the influence of forces.

Dynamics:

Dynamics is the branch of mechanics that deals with the study of objects in motion and the forces causing such motion.

Dynamics Types:

Dynamics can be further classified into two types. They are:

Kinematics :

Kinematics is the study of the motion of bodies without consideration of the cause of the motion. Kinematics deals with the space-time relationship of the motion of a body. Some examples of kinematic concepts are displacement, velocity and acceleration.

Kinetics:
Kinetics is the branch of mechanics which deals with the study of the motion of bodies by considering the cause of motion.