Recent content by Stephen Bulking

Model I built in Solidworks to assess the moment of inertia of the composite object that is the drum and peanuts inside Equation I used to evaluate the torque

Thanks for your comments guys, I think I'll just do a simpler model not accounting the angle of repose for the extent of this project @jack action yeah, I get your idea but instead of the block of ice, I modeled a wedge of peanuts with the same volume to find the moment of inertia of the...

Wow, cool I didn't even know of the angle of repose... Can you please show me the book from which you read this? Also in my model, I'm assuming that the torque required to turn the drum of the motor consists of 2 components: torque to counteract gravitational torque and torque to overcome the...

Hmm... I thought I made myself clear enough... welp no problem... I'm trying to design a rotary drum for a household panning application which includes a motor directly turning the drum (of course when I say directly I mean with bearings and intermediate shaft, please see included kinematic...

I forgot to mention, the drum is tilted at a 30 degree angle so I chose a wedge at the bottom

Hey guys do you know how Solidworks allow us to estimate the moment of inertia of the 3D model given the material properties? Well I'm trying to find the moment of inertia of my rotary drum with 1177 peanuts centers inside the drum and obviously I can't draw 1177 peanut centers inside the...

Ok, I understand now, thanks again for all your hard work.

Ok with your verification of the results for problem 6-84, I don't think I have any more questions on the problems, thanks. On our moment transferring discussion, your example of the shop crane helped me a great deal in understanding moment transferring, but just to make sure, might I ask that...

Well the only mistake I can think of is wrong notation: \Sigma Md not \Sigma Mc But I did say that I was going to take moment sum about point D (equals to zero for equilibrium). Using the conventional ccw as the positive direction, I believe I've got all the signs (plus and minus) correct. With...

OK man, Wow! I just can't imagine how much time and effort you put into my problems. I really appreciate this, thank you. Despite your hard work, I'm only a student and your thorough analysis of the problems are a little bit overwhelming for me. Of course that has never been the reason to give...

Ok thanks again, I understand now.

Ohh, I see now. These figures ARE misleading. It's just like you said: "The presence of the wheel in the drawing has no significance for the analysis, the frame could just as well STAND on the floor". The exercise is a lot clearer to me with the image of the hoist STANDING. But I just have to...

Hi, your FBD is really helpful, I have never thought that the truck would end at D. I redraw the FBD of the tanker and the truck. If my FBDs are correct then the problem is solved. I thought the force that the tanker exerts on the truck is Dy where they are connected. Since it's a pin connection...

Thank you, but what I don't understand here is not what joint goes with what reaction support. I understand how the pin joint has 2 constraints and the roller has only one. The problem is with the exercises that I included. Seems to me as if they're just switching between the two joints...

Hi, thanks for replying so quickly, I have read your comments and I'm still a little fuzzy. I do know and can tell the difference between the roller and pin joint, I just CAN'T IDENTIFY between them because like you said: "The figures are sometimes confusing". Please see my "heated" debate with...