Investigating a Cantilever
Research
A cantilever is a beam fixed at one end only. They are often used in
every day life in structures such as cranes, diving boards and
football stadiums.
Factors that effect the deflection of a cantilever are mass, length
and load.
3 forces affect a cantilever's deflection; these are gravitational
forces acting upon the mass and load of a cantilever a compressional
force acting on the underside of the cantilever and a tensional force
on the upper side of the cantilever. If the cantilever deflects too
much it will break. This is either because it is too long or too much
weight is acting upon it.
[IMAGE][IMAGE][IMAGE][IMAGE][IMAGE][IMAGE] [IMAGE]
Tensional Force Compressional + Tensional Force
Compressional Force Weight (Mass x Gravitational Force)
I'm going to investigate how changing the load will effect the
deflection of the cantilever.
Preliminary Test
The Preliminary test was taken to find the optimum length of the
cantilever for our investigation, a compromise between a very large
and very small deflection, one that was measurable and easy to take
readings off of. Also a perfect length so that the cantilever is safe
and isn't likely to break.
Length (mm)
Mass (g)
Start Height (mm)
Finish Height (mm)
Deflection (mm)
100
500
831
831
0
200
500
831
828
3
300
500
831
823
8
400
500
831
813
18
500
500
831
789
42
600
500
828
759
75
700
500
825
716
109
These are results of our preliminary test
From these results we decided that 500mm was the optimum length of the
cantilever.
Method
Boomilevers are most commonly built as right triangles, in order for them to withstand the most force. Naturally, this creates a hypotenuse, and also helps to define the device. If the tension member is the hypotenuse, then the device is known as a “tension boomilever.” In contrast, if the compression member is the hypotenuse, then it is known as a “compression boomilever.” When the testing of the boomilever begins, a weight is placed on the side farthest away from the base, or the distal end.
We will now look at the physics of a trebuchet. “The trebuchet uses many different physics applications, we will look at a few of them. Basically a trebuchet is a fulcrum.
A connecting rod subjected to an axial load F may buckle with x-axis as neutral axis in the plane of motion of the connecting rod, {or} y-axis is a neutral axis. The connecting rod is considered like both ends hinged for buckling about x axis and both ends fixed for buckling about y-axis. A connecting rod should be equally strong in buckling about either axis [8].
In Unbound Feet: A Social History of Chinese Women in San Francisco, Judy Yung narrates the story of the immigration of Chinese American women to San Francisco, their struggles to maintain their homes and raise their children, their ability to acculturate into a foreign way of life, and how these women were ultimately able to succeed in the United States. Unbound Feet is a multi-layered book, with Yung using her own family history as the starting place for her interest and research into the immigration of Chinese American women. Moreover, the title is a play on the Chinese practice of foot binding which “involved tightly wrapping the feet of young girls with bandages until the arches were broken, the toes permanently bent
Lengthening the sling proved valuable, increasing velocity and range considerably. However, a point was reached at which the sling length could be said to be optimized, and lengthening it further only created unpredictable release angles.
The Statue of Liberty is one of the most well know symbols of the United States, across the world. For this reason I chose to analyze the dramatic effect it creates, and what methods it implores to invent this "universal" meaning. It is one of the strongest visual representations of the ideals which our country is founded upon. I intend to defend the argument that the Statue of Liberty posses the power of persuading human thought using the terms encompassed in Kenneth Burke's Pentad, shaping the definition of "America" for people through out the world.
I believe that the purpose of doing this is to allow me to demonstrate my understanding of Elastic potential energy. And the projectile concepts of the effect of changing potential into kinetic energy and for me to demonstrate my ability to apply elastic potential energy to a scientific investigation.
...ad to use cantilevers which were beams anchored at only one end. These beams carry the load to support where the force is concentrated by a moment and shear stress. Fallingwater indeed was a revolutionary structure due to the fact that it had many unique aspects. From how famous the house became, Fallingwater was featured on the cover of Time magazine, in 1938.
matter how much pain it causes, and besides those that are able to break away
In canto three there are many people with flawed perceptions. At the Hampton Court Palace Belinda sits down with two knights for a game of cards the game of cards is representing a heroic battle. The sylphs Belinda and the baron all have their own set of flaws and some are noticeable and some are hidden for good reason, but the hidden flaws can be seen as harm to goods eye.
If you're going to build a 62,000 km rope, what would you use?. This application ends up being
In analyzing the force associated with a certain spring, whether it is in you pen or under your truck, Hooke’s Law applies.
According to ordinary usage, the word Gestell (frame) means some kind of apparatus, e.g., a bookrack. Gestell is also the name for a skeleton. And the employment of the word
Law of elasticity is known as Hooke’s law, showing the relationship between the forces applied to a spring and its elasticity, which states that relationship between small deformation of the object and the displacement or size are directly proportional to loading and the deforming force. According to Hooke’s law, elastic behaviour of solids could explain by the fact that in component ions, molecules, or atoms from normal positions, which is small deformation, are also proportional to the force that causes the displacement. The deforming force might be applied to a solid by squeezing, compressing, stretching twisting, or bending. Accordingly, spring will return to its primary size and shape upon discharge of the load (Tega, 2010).