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Problem: For this problem, use the water tower. The water tower initially starts at rest and is subject to the pulse excitation shown below that ends at 0.2 sec. Assume the water tower has 5% of critical damping (ζ = 0.05).
a. Using the central difference method and a time step of ?t = 0.02 seconds, find the displacement of the water tower at t = 0.02 and 0.04 seconds.
b. Repeat part (a) using-the Newmark-β method with β = ¼.
What are the inputs needed to determine stress a polymer with a fixed end on one side, and the other with a tension force of 50,000 lbs a year after the load is applied
A group of Mr. Lugwrench engineers spent 4 years and $50,000 to develop a new pressure test system for coolant hoses with the Old Faceful Corporation. Purchasing quoted the system out, and two systems are being considered - Old Faceful and Blowi..
Two shafts are made of the same material and are of equal lengths.one of them is solid and another one is hollow. the ratio of inside and outside diameters for hollow shaft is 0.65.
An electronic device is available that will reduce year'slabor cost by $10,000. the equipment is expected to last for eightyears. If labor is cost increase at an average rate of 7% per yearand the interest rate is 12% per year
A sanitary landfill has an available space of 125,000 m2and a depth of 10 m. 765 m3 of solid waste aredumped at the site 5 days per week. The waste is compacted totwice its delivered denisty. Esimate the expected life of theland-fill.
how far back from the front axle would the center of gravity have to be to ensure that the maximum tractive effort developed for front- and rear- wheel-drive options is equal (assume that all other variables are unchanged)
What is the (a) eulerian acceleration at point x = 1, y = 2, z = 3 for the following velocity field? (b) what is the lagrangian acceleration for the same point?
Raw primary sludge at a solids concentraion of 4% is mixed with waste activated sludge at a solids concentration of .5%. The flows are 20 and 24 gal/min respectively. What is the resulting solids concentration
If the purlins are spaced 4 ft and the bents are spaced 25 ft apart, determine the distributed loading that acts along the purlin DF and the loadings that act on the bent at A,B,C,D, and E.
Two water reservoirs A and B are connected to each other through a 40 m long, 2 cm cast iron pipe with a sharp-edged entrance. The pipe also involves a swing check valve and a fully open gate valve.
1 discuss the different agencies institutes centers and other national bodies that are involved in environmental work
Two objext A and B are moving along the same line. At the time t=0, B is 75ft ahead of A. The acceleration of A is 1.8ft/s^2 and the acceleration of B is -1.3ft/s^2. The velocity of A is 32ft/s and the velocity of B is 51ft/s.
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