Control theory

Viscous damping

In continuum mechanics, viscous damping is a formulation of the damping phenomena, in which the source of damping force is modeled as a function of the volume, shape, and velocity of an object traversing through a real fluid with viscosity. Typical examples of viscous damping in mechanical systems include: * Fluid films between surfaces * Fluid flow around a piston in a cylinder * Fluid flow through an orifice * Fluid flow within a journal bearing Viscous damping also refers to damping devices. Most often they damp motion by providing a force or torque opposing motion proportional to the velocity. This may be affected by fluid flow or motion of magnetic structures. The intended effect is to improve the damping ratio. * Shock absorbers in cars * Seismic retrofitting with viscous dampers * Tuned mass dampers in tall buildings * Deployment actuators in spacecraft (Wikipedia).

Video thumbnail

Understanding Viscosity

Get access to extended and bonus videos on Nebula - https://nebula.tv/videos/the-efficient-engineer-understanding-viscosity-extended-version. In this video we take a look at viscosity, a key property in fluid mechanics that describes how easily a fluid will flow. But there's more too it t

From playlist Fluid Mechanics

Video thumbnail

Viscosity of Fluids & Velocity Gradient - Fluid Mechanics, Physics Problems

This physics video tutorial provides a basic introduction into viscosity of fluids. Viscosity is the internal friction within fluids. Honey has a high amount of viscosity compared to water. Honey travels slowly down an inclined plane where as water will flow down quickly. Viscosity can

From playlist New Physics Video Playlist

Video thumbnail

Physics CH 16.1 Simple Harmonic Motion with Damping (11 of 20) The Damping Factor

Visit http://ilectureonline.com for more math and science lectures! In this video I will develops the general equation of the simple harmonic motion with damping factor.

From playlist PHYSICS 16.1 SHM WITH DAMPING

Video thumbnail

C68 The physics of damped motion

See how the graphs of damped motion changes with changes in mass, the spring constant, and the initial value constants. The equations tell us which parameters influence the period, frequency and amplitude of oscillation.

From playlist Differential Equations

Video thumbnail

What is a Damped Sine Wave?

Damped sine wave definition with several examples. Formula, damping phase and phase shifts explained using Desmos.

From playlist Calculus

Video thumbnail

Ex: Determine a Dampening Force For An Critically Damped System (Free Damped Vibration)

This video explains how to determine the dampening force with a given velocity to make system critically damped.

From playlist Modeling with Higher Order Differential Equations

Video thumbnail

Damped oscillation!!!

In this video i demonstrate Underdamped, Critically Damped, and Overdamped. I use ruler magnets and aluminum (pendulum). Magnet moves near aluminum and Foucault currents stop smooth the pendulum.

From playlist MECHANICS

Video thumbnail

B06 Types of damped harmonic motion

Explaining the types of damped harmonic oscillation. These are underdamped, critically damped, and under damped, depending on the types of roots calculated when solving the second order linear ordinary differential equation that results from introducing the retarding force.

From playlist Physics ONE

Video thumbnail

Ex: Determine a Dampening Force For An Overdamped System (Free Damped Vibration)

This video explains how to determine the dampening force with a given velocity to make system overdamped.

From playlist Modeling with Higher Order Differential Equations

Video thumbnail

PHYS 201 | Damped 1 - The Equation of Motion for a Damped Oscillator

-----Oscillators Playlist - https://www.youtube.com/playlist?list=PL9_sR6QqqcykIpaKEFoy3HNhEq9LVoORA -----Use the channel, or take the courses at edX - https://www.edx.org/course?search_query=hafner+ricex -----This material was produced by Rice Online - http://online.rice.edu

From playlist PHYS 201 | Oscillators

Video thumbnail

Differential Equations: Force Damped Oscillations

How to solve an application of non-homogeneous systems, forced damped oscillations. Special resonance review at the end.

From playlist Basics: Differential Equations

Video thumbnail

Standard 2nd Order ODEs: Natural Frequency and Damping Ratio

In this video we discuss writing 2nd order ODEs in standard form xdd(t)+2*zeta*wn*xd(t)+wn^2*x(t) where zeta = damping ratio wn = natural frequency We will see that the damping ratio and natural frequency characterize the behavior of the system Topics and timesta

From playlist Ordinary Differential Equations

Video thumbnail

Lec 22 - Phys 237: Gravitational Waves with Kip Thorne

Watch the rest of the lectures on http://www.cosmolearning.com/courses/overview-of-gravitational-wave-science-400/ Redistributed with permission. This video is taken from a 2002 Caltech on-line course on "Gravitational Waves", organized and designed by Kip S. Thorne, Mihai Bondarescu and

From playlist Caltech: Gravitational Waves with Kip Thorne - CosmoLearning.com Physics

Video thumbnail

Alexandre Boritchev: Adding small viscosity to hyperbolic (stochastic) conservation laws

The mechanism responsible for blow-up is well-understood for many hyperbolic conservation laws. Indeed, for a whole class of problems including the Burgers equation and many aggregation-diffusion equations such as the 1D parabolic-elliptic Keller-Segel system, the time and nature

From playlist Partial Differential Equations

Video thumbnail

Theory of Vibration

A practical introduction to Theory of vibration. Concepts like free vibration, vibration with damping, forced vibration, resonance are explained in this video lecture in physical point of view. This videos lecture also forms a strong background for vibration analysis. Check this link http

From playlist Mechanical Engineering

Video thumbnail

Physics3C. Lecture 03.

UCI Physics 3C: Basic Physics III (Fall 2013) Lec 03. Basic Physics III View the complete course: http://ocw.uci.edu/courses/physics_3c_basic_physics_iii.html Instructor: Michael Smy, Ph.D. License: Creative Commons CC-BY-SA Terms of Use: http://ocw.uci.edu/info More courses at http://ocw

From playlist Physics 3C: Basic Physics III

Video thumbnail

Video3-22: Spring-mass system; damped free oscillations. Elementary Differential Equations

Elementary Differential Equations Video3-22: Spring-mass system; damped free oscillations. Course playlist: https://www.youtube.com/playlist?list=PLbxFfU5GKZz0GbSSFMjZQyZtCq-0ol_jD

From playlist Elementary Differential Equations

Video thumbnail

Chemistry - Liquids and Solids (13 of 59) Viscosity - Basics

Visit http://ilectureonline.com for more math and science lectures! In this video I will explain the basics of viscosity.

From playlist CHEMISTRY 16 LIQUIDS AND SOLIDS

Related pages

Volume | Hysteresis