Recent content by Aaron Mac

I was going to consider both case. You think an advanced fea simulation is the way to go?

How will I find the base size and mass from your explanations?

I am honestly working on my phone, and i sincerely apologise. I will make sure next time i follow your advice :) I think maybe i'm getting what you are trying to do. It is to balance sum of moments of all bolts with the bending moment at the bottom due to the robotic arm? if yes, then what next?

Sum of moments = F x (L1 + L2)

Please check this below and let me know if it is okayTo determine the load on the bolts, we can use the principle of statics, which states that the sum of all forces and moments acting on a rigid body must be zero. Assuming that the plate is rigid, we can balance the applied moment from the load...

I appreciate the advice but i wanted to provide justifications for the size and mass of the base

it will be fixed onto concrete. It is actually a c channel and you are right about the bending moment calculation; i did that for safety factor since in real practice it may not be welded onto the neutral axis and dynamic loads etc. can you help me size the base, i honestly spent days trying to...

Ratio = Moment causing force / (Strength of bolts * Cross-sectional area of the column) Is this the appropriate ratio equation?

"If you knew the ratio of the base diameter, to the column length, you could work out the base diameter." The length of the column is already known as a consequence. If we assume a ratio we are essentially assuming the diameter already

you mean the clamping force of the bolts to see the consequence on the base plate? Do you have any particular equation for that?

By side force you mean weight of the robotic arm and payload it will be carrying? I did account that when calculating the bending moment at the bottom. And how would you size the base diameter and mass? I am a little bit lost honestly!! Thanks in advance

i decided to use an 8mm base thickness as mentioned in the paper and we can ignore the quality of the weld if it can make the base sizing much simpler. Can you guide me through the calculations?

I did consider triangular gusset plates initially but due to the functionality of the robotic arm it won't be possible. So it was decided to design a base which will be clamped onto the floor with bolts

Yes right i have also calculated the clamping force per bolts.

Hello friend, it is already in the original 3d model. I'm just having a hard time sizing the base.