Launcher machine design (Need Help)

[MechaMZ]

Hi all,

I'm going to design a ball launcher machine, but I've no idea where to start from..
this is the ball type: http://en.wikipedia.org/wiki/Sepak_Takraw

how do i judge the power and rpm required for the motor??
as i know, there is a initial velocity required for the roller, so the ball could achieve certain distance.


please enlighten me, thank you vey much =)

for this tennis ball launcher, the power required for the motor is 154W
http://www.ece.uvic.ca/~dwolowic/MechProgress.pdf

so perhaps it has to be slightly higher than that, since the size and weight is bigger..

 

[Dr.D]

Probably the best place to start is to carefully read the report that you already have in hand that details a similar design problem. It gives you quite a lot of information, and it describes a lot of possibilities. Ultimately you will have to go through a similar process for your problem, and your results will probably not be identical to what is in that report. Never the less, it is an excellent place to start.

 

[MechaMZ]

any recommended website or software for projectile motion??

 

[Dr.D]

I don't think you need help nearly as much as you need motivation to start. You have a very good report that lays it all out for you.

If you really need to study projectile motion, this topic is described in countless mechanics texts (dynamics).