Post
by goodwine » Mon Nov 07, 2011 12:17 pm
In this class we will solve various forms of the wave equation, which describe the motion of vibrating strings, drum heads, etc. Movies of the solution to the wave equation in various forms are as follows. If the movies are jittery in a browser, save them to your computer and play them in a video viewer.
The one-dimensional wave equation:
The first mode of the plucked string (guitar),
The first five modes of the plucked string plotted separately,
The sum of the first five modes of the plucked string,
The sum of the first fifty modes of the plucked string,
The sum of the first fifty modes of the plucked string with dispursion,
The sum of the first ten modes of the impacted string (piano), and
The sum of the first fifty modes of the impacted string (piano).
The one-dimensional heat conduction equation:
Solution with inhomogeneous boundary conditions, and
Solution with an insulated end.
The two-dimensional wave equation
in rectangular coordinates:
1-1 mode of a rectangular drum,
2-1 mode of a rectangular drum,
2-2 mode of a rectangular drum,
Rectangular drum impacted,
in polar coordinates:
1-1 mode of a circular drum,
1-2 mode of a circular drum,
1-3 mode of a circular drum,
1-4 mode of a circular drum,
2-1 mode of a circular drum,
2-2 mode of a circular drum,
4-4 mode of a circular drum,
Circular drum impacted, and
Circular drum impacted in the center.
Two-dimensional heat equation in rectangular coordinates (boring).
Real world applications of the wave equation are as follows:
Jimmy Page guitar solo
Led Zeppelin, Over the Hills and Far Away
Guns n' Roses, Paradise City
Guns n' Roses, Welcome to the Jungle
Guns n' Roses, Welcome to the Jungle
Electric Light Orchestra, Don't Bring Me Down
Ozzy Osbourne, Crazy Train
Pink Floyd, Wish You Were Here
Pink Floyd, Comfortably Numb
Pink Floyd, Money
Bob Dylan, Subterranian Homesick Blues
The Police, Invisible Sun
The Police, Synchronicity II
The Clash, Should I Stay or Should I Go?
The Clash, Train in Vain
The Clash, The Magnificent Seven
The Clash, Police on My Back
Peter Gabriel, Shock the Monkey
Slade, Run Runaway
Talking Heads, Once in a Lifetime
Talking Heads, Burning Down the House
AC/DC, Back in Black
The Who, Magic Bus
Run DMC, It's Tricky
Gary Newman, Cars
Frankie Goes to Hollywood, Relax
U2, Where the Streets Have No Name
REM, It's the End of the World as We Know It (And I Feel Fine)
REM, Stand
Rush, Closer to the Heart
Thomas Dolby, She Blinded Me with Science
The Ramones, I wanna be Sedated
Cheap Trick, Dream Police
Duran Duran, Hungry Like the Wolf
Billy Idol, Rebel Yell
Billy Idol, Dancing with Myself
Metallica, Master of Puppets
Dead or Alive, You Spin Me Round (Like a Record)
Wall of Voodoo, Mexican Radio
Falco, Rock me Amadeus
Falco, Der Kommissar
John Lennon, Instant Karma
John Lennon, Nobody Told Me
David Bowie, Modern Love
Buddy Rich Quartet
Weather Report, Birdland
Simon and Garfunkel, Me and Julio Down by the Schoolyard
Bill Goodwine, 376 Fitzpatrick