Recent content by Claudio_Baldo

May I ask how to calculate the instantaneous weight for the CRANE? I understand I have to calculate the momentum of the force multiplying the force weight (measured from the load cell) by the horizontal component of the arm. This is the static weight. I guess there will also be a dynamic weight...

Hi everyone, I am starting the re-design of the PLC software for a preexisting Truck Crane Loader. I will receive the Weight Chart to see what the limits are and I was wondering how to exactly calculate the resulting weight on the Crane. The CRANE is already on place, it has two joints and a...

Yes, sorry, my mistake, that will be the subtraction of the outer and the inner areas... :) The monitoring should be made up independently from the Rig manufacturer and this should be for RC rigs. RC rigs do not use water down the hole but compressed air instead, this is to say, the hole should...

Also, any other idea of measures I can do with these sensors? I should have installed two pressure sensors (hold back/push down pressures), rotation speed, vibration sensor. I may consider to install additional sensors in case of any interesting suggestion.

Hi Baluncore, I can`t get hold of this information and I need to proceed with the software design, I will leave the movement ratio head/cylinders as 2:1 for now. These are the actual formulas I will use (in case anyone is trying to do the same or wants to comment on it): Fpd=Ppd* π*Rp1^2 (lbs)...

I am try to get the data you have asked. Thank you very much for your help so far.

They are traverse cylinders and I have asked for a diagram or datasheet but didn`t get anything yet. I want to double check the effective area for hold back and push down. About the ropes, please correct me if I am wrong, they should be considered only to calculate the ratio of the distance...

As you can see I have adjusted the calculation of the area, from: 3.14*(5^2) to 3.14*(2.5^2) and from 3.14*(2.5^2-1.25^2) Due to the fact the 5'' and 2.5'' are diameters.

I agree with it, the fact is still the result does not match.

Ok, you mean that due the principle of conservation of energy, the work done by the cylinder and the head must me the same. So if we calculate the work as the force by the distance and the head travels double, the force applied must be half. Considering the force applied by two cilinders the...

I am probably missing the point of the ratio two between cylinders and head. If I apply a force to an object which through a system of ropes makes a second object moving: if they move the same distance means the force has the same ratio. If the second object moves half distance of the first...

Hi Baluncore, thank you for the reply. In regards to your answer, yes, at the moment we are only considering the vertical drilling, this is the reason why I considered force weight the same factor as pull down and hold back pressure. In case of angular drilling I need to use the `cos` factor...

Some more data, the type of drilling is RC (reverse cycled). There is a system of two traverse cylinders, one on each side of the must, the diameter of the piston is 5'' and the diameter of the rod is 2.5''. As I said I have some empirical data as the weight of string, PSI of Holdback (rod side...

I am trying to program a MWD (monitoring while drilling) software for a Exploration Driller and I was wondering if the forum could confirm what I have found out. I need to calculate the WOB (weight on bit) and Head Torque, I do the following direct reading: WOB: Pushdown pressure (PSI). = Ppd...