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Buckling of the Popsicle Crane Boom

A beam buckling

We have put quite a bit of effort in understanding the forces on the crane boom. Now we need to start figuring out what we are going to do about them. (Refer to the post crane-boom-analysis-part-2) The fact that the whole boom is under compression loading explains a lot to me

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Crane Boom Analysis Part 2.

Picture 1: All of the loads acting on the boom.

This is a continuation of the last post and our attempt to understand the forces acting on a crane boom. The summary of where we left it was:

All of the forces along the boom will compress the boom. The boom weight and the

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A gross analysis of the forces on a crane boom

Picture 1. The top of a crane boom from some government archive pictures.

It is time for the rubber to meet the road on starting to figure out how to build the popsicle crane boom. As you know, I have been looking at many pictures and researching crane sites to try to understand what

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Episode 38 – Popsicle sticks and Bicycle frames.

In this episode we discuss why beams (and Popsicle sticks) bend and why bicycle frames are hollow. This is an easy and quick no-math episode that presents the forces determining the strength and rigidity of beams.

In episode 12 we talked about bending forces on beams and I used a popsicle stick as an example.

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Episode 27 – Statics Part II – Moments

A drawing of the problem to be solved

First, I want to announce the Repurpose Contest page is up. This includes pictures of the items for the April 2012 contest.

This episode is the next step in complexity from Episode 25. The problem is very similar to the last one except the force and the rope are connected at different points.

A

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Episode 25 – Introduction to Statics and Forces on a Beam

This episode baby-steps into understanding how to solve problems to determine the forces on structural members. A completely graphical method is used to solve this problem by drawing right triangles and measuring the line lengths. A simple experiment is shown to roughly test the results. I show how I did the experiment, but I recommend

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Episode 12 – Introduction to Forces

This is the first of several episodes that will be talking about materials and the forces on them. In this episode we will be talking about Newton’s three laws of motion and specifically about Newtons 3rd law – equal and opposite reaction force.

Newton’s laws:

A body at rest will remain at rest unless acted

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