The Rockwell Collins Satellite Transportable Terminal (STT) is an important satellite for the signal branch that is used to make communications virtually anywhere. A suspension system needs to be put into the STT so that it will not be damaged while being loaded and transported. There are three shock systems available with different spring constants and damping coefficients. The three shock systems are called Air Coasters, Cloud Riders, and Extreme Shocks. A HMMWV was being tested when it began bouncing up and down, so the soldiers operating the vehicle shut it down for fear of it breaking down. Some engineers re-fired the gun so they could take measurements of its displacement from the ground in order to understand what was happening, but they only took measurements for 60 seconds before they shut it down.
Free Dampened System – Loading the Trailer The suspension system can be modeled using the following equation: m (d^2 x)/(dt^2 )+β dx/dt+kx=f(t) x(t) is the displacement from its rest position in meters, m is the mass of the object in kilograms, β is the damping constant in kg/second, k is the spring constant in kg/sec2, and f(t) is the external force in Newtons (N). The mass of the satellite is 1800 kg and the satellite is at equilibrium when the trailer is loaded. Before the trailer is loaded, the displacement of the shocks is 0.05 meters, so the starting displacement is 0.05. The critically-damped value of each shock is calculated in Appendix A. The Air Coasters
5. Tie one end of the 60-cm string to the mass. Place the mass on a table below
First, we will set up the force table. The table comes in three separate pieces the base, stand and table once we connect and fasten all three parts we must use a circular level to make sure the table is balanced. If the force table isn’t balanced then we must adjust the base’s feet to the appropriate levels on each leg till the bubble on the level is centered. We must then assign where the positive & negative x, y axis are on the force table as a point of reference and label them with tape .Then for part I we must apply 1.96 N in the positive x – direction, and 2.94 N in the positive y-direction then we must balance the two with a third force and record the magnitude and direction of it and a draw a diagram showing all three forces. Part II
This test came on July 24, 1916 when an explosion occurred in a tunnel being dug under Lake Erie. The tunnel quickly filled
The design reduced overall length during transport and storage. The nose section mounted using hinges to permit easy access to the avionics and other mission equipment. The center section incorporated the wing-box, fuel tanks engine and landing gear. Because of its dual, hover and conventional aircraft flight requirements, Burt designed a complex structural arrangement. The Allison C20 gas turbine engine, attached to a combining transmission was integrated into the center fuselage. Drive shafts from the combining transmission pass through the center of the wing and connect to transmissions (Bell 206 tail rotor gear boxes) in nacelles at each wing-tip. The cantilevered wing box experienced very diverse structural loads during hover and conventional forward flight, and an additional challenge required the wing-box wet fuel tank preserve the dry integrity of the transmission drive shaft conduits. The removal of the entire top part of the fuselage provided access to the engine and center gear box. The removable tail was attached using a lightweight screw row. The tail contained various antenna and actuators for the pitch control surfaces. Scaled Composites installed the hard points and mounts
On January 15, 1919, one of the most tragic and strange disasters occurred in Boston, Massachusetts. It was around forty degrees that day, when two days previously it had been only two degrees. At 12:30 PM 2,300,000 gallons of molasses spilled into the streets near Keany Square after the tank holding it exploded, most think due to a combination of poor design and the drastic temperature flux. The aftermath was tragic, with twenty one deaths and one hundred and fifty injured. The company who owned the tank was quick to blame others, but soon it was found that the tank was poorly constructed, and if more time had been taken, the Boston Molasses Disaster would never have happened.
where F is force (5N) , m is mass (5kg), and a is acceleration (you have to find acceleration)
There were about 200 people chosen for the experiments, and out of all these people, less than 40 had been condemned to death, but 78 were killed. To do the experiments they were put in containers that were air tight. Then the pressure inside the container was changed to simulate the experiment they were assigned to. They figured out that only continuous experiments at altitudes upwards of 10.5 kms ended in death. They also showed that the victim stopped breathing after about 30
At 8:10, a 1,800-pound bomb smashed through the deck of the battleship USS Arizona and landed in her forward ammunition magazine. The ship
experiment because it was a result of a total shut-down of the Oakland Air Route
They were faced with a problem (oxygen tank explosion) and they had to problem solve with little time to get home safe.
Then, notes were taken of the mass and the force of the weight, and continue with varying weights. Once all the data was collected, the program LoggerPro was used to create a data table. Once the table created in LoggerPro, a scatterplot that shows the relationship between mass and force was created. Then, the best fit line for the data was found, and also the mathematical model. Lastly, the relationship between these two variables were
On 1st of February, 2003, the space shuttle Columbia exploded when it re-entered the Earth’s atmosphere after finished a 16 days mission in space. All seven astronauts were dead because of this incident. The National Aeronautics and Space Administration (NASA) had stopped the space shuttle program for more than two years to investigate this tragedy. In the 16 days period, the astronauts did approximately 80 experiments on different categories, for example, life science and material science [1]. An investigation later has found out that the disaster was caused by a problem on the day that took off on 16th of January.
Her very late application accommodation, paid off as she was welcome to be a piece of the trek. On NASA's twenty-fifth transport mission, the educator, Christa McAuliffe, was the principal non military personnel of America to fly on board the space carry. She abandons her home for 4 months to prepare alongside different space travelers before she can go through the space. Morton Thiokol, an aviation organization which was shrunk by NASA to construct rocket promoter, used to dispatch the Challenger. After the sheltered arriving of STS-51-C Morton Thiokol begins setting up the dispatch of Challenger space carry, Roger Boisjoly, begins assessing space carry strong rocket engine joints. Mr. Boisjoly discovers that there is a disintegration issue with the present O-ring on the space carry.
As indicated by Polish essayist Igor Witkowski, who asserted to approach stolen transcripts of a SS officer's cross examination, the Nazis assembled a gigantic apparatus to hold up a chime formed specialty. This art could dispatch itself off the ground utilizing the energy of "red mercury" and accomplish drive without a motor. As the war was reaching an end, the majority of the researchers included were as far as anyone knows slaughtered and the Bell itself was taken away by the US. Witkowski's confirmation is finished guess, similar to the greater
Purpose: The purpose of this Physics Lab is to investigate what factors determine the amount of flexion of the cantilever. Hence, the objective is to establish a relationship between the length of a cantilever, which may give some insight into the physics of cantilevers.