Engineering > Experiment > Project 1-Single Rigid Body-MEEN225. SINGLE RIGID BODY. MEEN 225, Sec 501/502/503/504. (All)
Project Overview In this project we will analyze the forces produced when raising a load using a three-cable rigging system similar to Figure 1. In our specific case, we will study a case where the ... load may shift position within the load basket, and how load position affects the tensions developed in the rigging system. The objective of the analysis will be to determine the realized Factor of Safety (FoS) for the rigging cables. The realized factor of safety is a measure of how close the working loads of a system are to the failure point of the system Project Objectives By doing the project, students should be able to: • Apply equations of equilibrium to solve for unknown forces for a point mass in three dimensions • Apply equations of equilibrium to solve for unknown forces for a rigid body in three dimensions • Develop appropriate geometric model from real pictures of system components • Introduce coordinate system to geometric model of real system • Represent geometrical parameters and forces present in real system in terms of coordinate system selected • Identify most limiting case for underspecified loading condition • Determine a realized factor of safety for prescribed situation TASK 1: Construct a physical demonstration To begin the project, the first task will be to construct a simple demonstration model of a three cable rigging system geometrically similar to the situation to be studied in tasks 2 & 3. What you will need for your demonstration model are: 1. A cardboard box with an open top Recommended dimensions are a rectangular base 4 inches x 3.5 inches, and having a height of 1.5 inches. Figure 2 provides a template for constructing such a box from a rectangular section of a posterboard. 2. Three pieces of fishing line, twine, or cord with closed loops on both ends and having equal lengths of approximately 12 inches 3. Four paper clips bent to the form of an ‘S’ hook 4. A full 12 oz. can of soda [Show More]
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