A1 Walton&price
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MAE 456 David Walton Thomas Price 9/4/2007 HW #1 Using Ansys calculate the maximum angular velocity so the von Mises stress is less than 30ksi, and find the interference with an angular velocity of 3,000 rpm.
Figure 1. Von Mises stress distribution B.) Setting the angular velocity to 690 rad/s gives the maximum von Mises stress to be 29,418psi.
Figure 2. 3000rpm(2pi)(1/60) = 314 rad/s C.) Setting the angular velocity to 314 rad/s gives the above displacement vector sum plot. The minimum interference is .343e-3 in. After creating the flywheel, using the example from class, it was rather simple to manipulate the data and extract the required information. The flywheel must first be constructed with indicated dimensions and then given the correct elemental properties. In order to solve for the maximum velocity it was a pure guess and check routine until the von Mises stress neared 30,000 psi. To solve for the minimum interference the 3,000 rpm’s is converted to radians/second. Next a plot was created to show the displacement of the flywheel and therefore solve for the minimum interference of .343e-3 in..
Figure 1. Von Mises stress distribution B.) Setting the angular velocity to 690 rad/s gives the maximum von Mises stress to be 29,418psi.
Figure 2. 3000rpm(2pi)(1/60) = 314 rad/s C.) Setting the angular velocity to 314 rad/s gives the above displacement vector sum plot. The minimum interference is .343e-3 in. After creating the flywheel, using the example from class, it was rather simple to manipulate the data and extract the required information. The flywheel must first be constructed with indicated dimensions and then given the correct elemental properties. In order to solve for the maximum velocity it was a pure guess and check routine until the von Mises stress neared 30,000 psi. To solve for the minimum interference the 3,000 rpm’s is converted to radians/second. Next a plot was created to show the displacement of the flywheel and therefore solve for the minimum interference of .343e-3 in..
