Numerical - Logarithmic decrement, given amplitude

Q.  Determine logarithmic decrement, if the amplitude of a vibrating body reduces to 1/6th in two cycles.
- Published on 11 Sep 15

a. 0.223
b. 0.8958
c. 0.3890
d. None of the above

ANSWER: 0.8958
 

    Discussion

  • Bhalchandra Yalamali   -Posted on 05 Nov 19
    ? = (1÷n)*(ln(x0÷xn))
    ? = (1÷2)*(ln(1÷(1÷6)))
    ? = 0.8958

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