振動波による架空索の張力測定法とその応用

概要

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(1) The vibration method of indirect tension-measurement for any existing skyline logging cable is proved by the authors' experiments to be very convenient and considerablly accurate.(2) The values of cable tension measured by the propagating velocity of the vibration waves may be utilized for practical purposes in many cases.(3)Probable maximum tension, Tmax, of a skyline cable, on which a single concentrated load is applied, is given by the formula, Tmax=γ・T where, T denotes the value of tension of the same cable measured by vibration method when no load is applied on it. Coefficient γ is theoretically caIcurated by eqs. (3), (4), (5), according to form and weight of cable and amount of load applied on it.(4) Tabulated numerical values of coefficient γ may be very useful for practical procedures.
一般社団法人日本森林学会の論文
1953-02-25