Recent content by HeZ

skeptic: Great, I will be sure to allow full motion without leaving coil. However 2cm just just a worst-case scenario, The actual travel distance is not too important, as long as it lifts a good 5mm. I will be rolling the coil around a 3D printed tube, I do not know if i can design for...

Skeptic: I have not wound a coil or decided on any parameters yet. When I said I do not have any figures available to try and calculate the time constant, I was kinda implying that I do not know inductance or capacitance. But I am after more of a digital coil that can be activated via a uC...

Exactly the information I was looking for, Thank you!

Hello all, There are a million threads and a million Google hits out there on the topic of switching the polarity of an electromagnet. Very simple stuff. But none seem to touch on the issue of inductance. I am building a small linear actuator that will be a coil wrapped around a thin plastic...

I am pretty sure that the hint we received was that the analysis should be the same regardless of the masses.. but: If m2 > m1 then F2static > F1static If the applied force F is greater than F2static then m2 will begin to move. F = F2static is transferred through the spring to m1 hence m1...

Yes, that sentence was poorly articulated, my apologies. Obviously if the mass is sliding up/down an incline then that matters a lot, what I intended for that quote to mean was the angle that gravity makes with the surface does not matter in terms of the friction force since it is sufficient to...

Thank you both Studiot and AlephZero for your replies. Two very different approaches to the problem. I plan on attempting them both as I believe it is important to have multiple ways of solving a problem available to me. @Studiot: Still a little confused about your method. Do we not need to...

Hey guys thanks for the replies. @Studiot: 1) If the spring is mass less then the net force must be zero. Energy may be stored in the spring however as the mass is zero the internal components have no momentum and therefore no internal forces. The force at one end is equal and opposite at...

Hello all, Semester has just started and i am dong a 4th year dynamics unit, so i am reviewing the previous years unit which was a pre-requisite for the unit i am currently doing. I have come across a rather difficult dynamics problem that was given as a challenge question at the beginning of...

Hi all, I am having a little trouble with a MATLAB GUI that i am writing, with GUIDE. Its purpose is basically to display the bode diagram and step response of a transfer function, and allow the user to change controller parameters/time delays and such to see the affect. I won't post my code...