Static and mode analysis with parameter sweep and multiple boundary conditions

Static and mode analysis with parameter sweep and multiple boundary conditions.

1. Study the existing 3 models for combined static and mode analysis of a tube and a block attached.

The model is a mockup of a wind power plant mounted on a flag post. Flag posts have been used in Finland as radio masts and wind power towers. The flag posts are rather soft and the materials strength is limited. In order to use this idea in practice, the flag post has to be stiffened by steel wires. This can be done at 2 height or at 1 height.

2. You see the reference email attached and select ONE flag post dimension. Wall thickness is t = 4...7 mm, thicker at the bottom. Dimensions you don’t know you must guess. You model YOUR flag post with a top box (your design) resembling a wind power unit. You study and report (i) the 10 first eigenfrequencies and (ii) the maximum force at the wind power units head that will cause failure stress. Model the wind power unit (Block) with structural steel, Model the flag post as Acrylic plastic and modify E = 10GPa and p = 1550 kg/m³. The failure stress of the flag post is s = EÎ = 10GPa- 0.005 = 50MPa.

3. Improve (increase) failure load (force) and report the maximum force at failure stress by inserting one or two additional boundary conditions which simulates wire stiffeners at some selected height. Report for this best design of yours also the 10 first eigenfrequencies.

State in your report the dimensions of your design in a table using units

Reference:

Hei

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