Calculate New Load - rig application

  • Thread starter Thread starter Zak Brigadier
  • Start date Start date
  • Tags Tags
    Application Load
Click For Summary

Discussion Overview

The discussion revolves around calculating the new load indicated on a hook load indicator when a rig accelerates a load of 200,000 lbf vertically from rest to 60 ft/min over a period of 5 seconds. Participants explore the physics involved in this scenario, including the forces acting on the load during acceleration.

Discussion Character

  • Homework-related, Mathematical reasoning, Technical explanation

Main Points Raised

  • Participants present the initial problem statement regarding the acceleration of the load and the need to compute the new load on the hook load indicator.
  • Some participants inquire about additional details, such as the need for a diagram and whether the acceleration is purely vertical.
  • One participant clarifies that the acceleration is indeed vertical and explains the context of the rig's operation.
  • Another participant suggests writing down the equation for the total force acting on the load, indicating the relationship between weight and the additional force due to acceleration.
  • A participant states the equation P-T = ma, implying a connection between the forces involved, but does not elaborate further.

Areas of Agreement / Disagreement

There is no consensus yet on the complete solution or the specific calculations involved, as participants are still discussing the necessary steps and clarifications.

Contextual Notes

Participants have not provided complete calculations or assumptions regarding the forces acting on the load, and the discussion remains focused on clarifying the problem and the relevant equations.

Zak Brigadier
Messages
3
Reaction score
0

Homework Statement


A rig accelerates a load of 200,000 lbf from zero to 60 ft/min in 5 seconds.

Homework Equations


Compute new load shown on the hook load indicator ?

The Attempt at a Solution


Calculated the distance of load l = 4.99 ft.
 
Physics news on Phys.org
Zak Brigadier said:

Homework Statement


A rig accelerates a load of 200,000 lbf from zero to 60 ft/min in 5 seconds.

Homework Equations


Compute new load shown on the hook load indicator ?

The Attempt at a Solution


Calculated the distance of load l = 4.99 ft.
Can you please show more of your work? Can you attach a diagram of the problem? Is all of this acceleration vertical?
 
Hello Berkeman:

Thank you for your reply. I don't have a diagram attached. Yes the acceleration is vertical. The hook lowers/hoist loads vertically in a drilling rig.
 
So the two things creating the tension in the cable is the weight of the load, and the extra force needed to generate that acceleration. Can you start to write down the equation for the total force on the accelerating object now? :smile:
 
Yes.

P-T = ma
 

Similar threads

Engineering Loads on a shaft with V-Belts
  • · Replies 2 ·
Replies
2
Views
3K
How Do You Calculate Distributed Load on a Roof Truss Due to Snow?
  • · Replies 3 ·
Replies
3
Views
5K
Statics: load supported on a wooden frame
  • · Replies 5 ·
Replies
5
Views
2K
Calculating Beam Load for One Way Slab: Analysis and Solutions
  • · Replies 1 ·
Replies
1
Views
2K
Engineering How Does Reducing Excitation Affect a Synchronous Induction Motor's Performance?
  • · Replies 4 ·
Replies
4
Views
3K
Maximum power is transferred when load R = Source R ?
  • · Replies 13 ·
Replies
13
Views
2K
Calculate Heavy Load Mass Lost on Inclined Truck | Homework Solution
  • · Replies 4 ·
Replies
4
Views
10K
Design Steel Pole: 3 Segment, 50ft, Max Wind 110mph
  • · Replies 5 ·
Replies
5
Views
2K
Transformers Under Load and No Load
  • · Replies 48 ·
2
Replies
48
Views
12K
Steam Turbine: Solve for Velocity
  • · Replies 4 ·
Replies
4
Views
4K