Recent content by adamxrt

Its because i tried writing them and failed horribly. I went back to my porject supervisors and they wanted to see the motor id selected. I went back, selected a motor and saw that on the data sheet. brought it back to them and said, is this by any chance the equation i should be using? they...

Sorry guys, this just got brushed under the carpet because i got it to work in solid edge dynamics motion simulator. but i still have to show the calculation either way. I've settled on a small vibration motor commonly found in dualshock controllers and, forgive me for saying it, womens...

Still stuck as hell! have no idea where to start calculating this. Surely i have to have selected a motor first before i can start calculating? becaus eill nee to know its weight and the rpms and torque? My goal is to calculate the maximum linear displacement of the centre of mass of the...

Thanks for the help so far man. Take a look at the attached image. This is a basic mock of the setup i envisage.

Forgive me for being so ridiculously stupid sounding, but not having dealt much with dc motors before, what exactly do you mean by motor frame? is this what the rotor spins in?or are you talking about what i mount the motor to? Am i naive in thinking i could have simply used the tapped mounting...

Surely though id imagine that the further off centre i drill the hole in the plate the more motion i see?

Ok, thanks for that. How do i show this by theory though? May sound stupid but I've always been dodgy with my understanding of the momentum equations.

OldEngr63 this is exactly my point. My knowledge in that particular area of dynamics is quite rusty though, and I am looking for a bit of help on what equations to start using. Do you have any ideas about this? I am selecting a motor as we speak to start with. Schliere ill quickly cad up a...

Hi guys,if i mount a dc motor on a glider that slides in 2 directions without friction, AND, instead of having it drive a mechanism, have a circular plate with an eccentrically drilled hole in it (not centre) mounted on the motor shaft though this hole, i should observe the glider sliding back...

Hi,I want to design a crude pendulum impact device which i can use to measure initial velocities of objects on a frictionless surface. i.e measure energy at the start and end of the pendulums swing, to see how much has been absorbed into the impact. Heres my question about momentum on...

Hey guys.i want to put a pendulum impact rig on one end of my track. I.E, have assembly attached to one of the endstops which can be deployed for use or retracted if its not needed. the idea of this is to use the pendulum as a start mechanism for the gliders, so that we can control the speed we...

I have taken everybodys concerns and considerations into mind and have kept them there for now. this is a nasty old problem, and I am feeling my way though it as best as possible. Sophiecentaur, youre so right about the crappy v squared equation, but its the best i can muster right now! lol...

Yeah i appreciate what you are saying! I compiled that solution at 4am last night. I have no idea how I didnt pick up on the 407 being too big myself, put things into perspective, I am unwell feel like crap, and had a nosebleed during one of my lectures earlier! tutor was all over me about it...

Tutor liked the problem solution, though he says there are some minor mistakes, and my initial static velocity its far too big! Over all good news though, will redo and repost!

well guys, I am very happy to say i have a solution for this problem. Please see below, I am going to get it checked tomorrow. =D let me know if it looks dodgy...because it probably is! this is all my own work, apart from being given a structure to follow. All equations looked up and...