FEA Final Theory Questions with 100% Verified Correct Answers

FEA Final Theory Questions with 100% Verified Correct Answers Frequencies of the first six modes found in Frequency study are: f1 = 6 Hz, f2 = 12 Hz, f3 = 50 Hz, f4 = 120 Hz, f5 = 160 Hz, f6 = 250 Hz. How many RBMs does this model have? Two Three Zero Six - Correct Answer Zero The period of a harmonic vibration is 1s. What is the frequency? 6.28 rad/s 1 s 0.1 Hz 1 rad/s - Correct Answer 6.28 rad/s = 1 Hz ω = 2π/T Restraints are applied in the local cylindrical coordinate system associated with the hole. Restraints are applied in the radial direction only. How many RBM does this model have? - Correct Answer 2, one rotational and one transational A shell element is in pure tension. P1 stress on the top of shell element is 150 MPa. What is the bending stress in the same location? 150 MPa 0 MPa -150 MPa 75 MPa - Correct Answer 0 MPa, loaded in pure tension The model is meshed with solid elements. It has Fixed restraint applied to one corner as shown. There are no other restraints. How many RBM are present? None of these