15-09-2017, 08:02 PM
jaseela123
Super Moderator
#2 26-04-2017, 09:50 AM
Dynamics is a branch of applied mathematics (specifically classical mechanics) related to the study of forces and pairs and their effect on motion, as opposed to kinematics, which studies the movement of objects without reference to their causes . Isaac Newton defined the fundamental physical laws that govern the dynamics of physics, especially his second law of motion. In general, researchers involved in dynamics study how a physical system can develop or alter over time and study the causes of those changes. In addition, Newton established the fundamental physical laws governing the dynamics of physics. By studying their mechanics system, dynamics can be understood. In particular, the dynamics is mainly related to Newton's second law of motion. However, the three laws of motion are taken into account because they are interrelated in any observation or experiment.
Linear and rotational dynamics
The study of dynamics is divided into two categories: linear and rotational. Linear dynamics belong to objects that move in a line and imply quantities such as force, mass / inertia, displacement (in units of distance), velocity (distance per unit time), acceleration (distance per unit of time squared) Speed unit). Rotation dynamics refers to objects that rotate or move in a curved path and involve quantities such as torque, rotational inertia / inertia, angular displacement (in radians or less frequently, degrees), angular velocity (radians per unit of Time), angular Acceleration (radians per unit of time squared) and angular momentum (moment of inertia multiplied by unit of angular velocity). Very often, objects exhibit linear and rotational motion.
For classical electromagnetism, it is Maxwell's equations that describe the dynamics. And the dynamics of classical systems involving both mechanics and electromagnetism are described by the combination of Newton's laws, Maxwell's equations, and Lorentz's force.
About the Book
Dynamic loads and unwanted oscillations increase with the speed of the machines. At the same time, industrial safety standards require a better reduction of vibrations.
This book covers model generation, parameter identification, balancing mechanisms, torsional and bending vibrations, vibration isolation and the dynamic behavior of drives and machine frames as complex systems.
Typical dynamic effects, such as the gyroscopic effect, damping and absorption, shocks, resonances of non-linear and self-excited higher-order vibrations, are explained using practical examples. These include manipulators, flywheels, gears, mechanisms, motors, rotors, hammers, block bases, presses, high speed spindles, cranes and belts. Various design features are described, which influence dynamic behavior.
The book includes 60 exercises with detailed solutions.
The substantial benefit of this "machinery dynamics" lies in the combination of theory and practical applications and numerous descriptive examples based on real-world data. The book is aimed at postgraduate students as well as engineers.