22-02-2004, 06:08 PM
Have a look at this. Very interesting with some brilliant animated Gifs. Whn someone wants to explain it all to me please get in touch. :( , bit technical for me and I've even got a degree in Mechanical Engineering Science. :eek:
Shaking forces in V-Twin motors (http://pdmec4.mecc.unipd.it/~cos/DINAMOTO/twin%20motors/twin.html)
Bit I liked was this (whadda ya mean "well known" :lol: )
As is well known, the shaking forces are the following:
http://thamecinema.users.btopenworld.com/for1-2.gif
where:
mC = reciprocating mass located at the wrist pin, composed of the piston mass and the portion of the mass of the connecting-rod which is assumed to be concentrated at the wrist pin (about one-third ;
w =angular velocity;
r = crank radius;
b = connecting rod length;
Ib = residual inertial moment of the connecting-rod ( negligible);
Shaking forces in V-Twin motors (http://pdmec4.mecc.unipd.it/~cos/DINAMOTO/twin%20motors/twin.html)
Bit I liked was this (whadda ya mean "well known" :lol: )
As is well known, the shaking forces are the following:
http://thamecinema.users.btopenworld.com/for1-2.gif
where:
mC = reciprocating mass located at the wrist pin, composed of the piston mass and the portion of the mass of the connecting-rod which is assumed to be concentrated at the wrist pin (about one-third ;
w =angular velocity;
r = crank radius;
b = connecting rod length;
Ib = residual inertial moment of the connecting-rod ( negligible);