Question

Question 2 (a) Explain what is meant by the effectiveness of a strut or beam. b) Give an example of each of these scaling effects: (i) fundamental scaling (ii) atomic effects on scaling. (c) An example of a quasi-fundamental scaling effect is that the natural frequency fo of a beam changes according to its dimensions only - E and p are independent of scale. If the scale of a beam is denoted by L, and given that: nc vent no Ewt and Oi ri find the value of x that makes the expression (d) Sketch and label graphs of displacement vs time for a mass-spring system true for the beam. with: (i) underdamping (i) overdamping. bsin (e) Define the term quality in the context of resonance (10 marks)

Answer 1

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