たわみ軸の強度について

概要

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In this paper, the torsional strength and the flexual rigidity of flexible shaft are measured, and then the effect of the constructed wire diameter and the number of coiled wire in the outer layer are obtained. As the results of the test, two types of failure, that of breaking and that of buckling have been indicated. The breaking failure is caused basing on the strength of constructed wire and the number of wire. The following are the results obtained ; (1) The torsional strength of flexible shaft depends on the wire of the outer layer. (2) The breaking torsional moment T_<max> are obtained as follows ; T_<max>=πd_m^2σ_Bn_m(D-d_m)/8k in which d_m the diameter of outer wire, n_m the number of wire and k the experimental coefficient. (3) The torsional buckling is produced in the case of long length of shaft. (4) The critical torsional buckling moment T_<cr> is obtained as follows ; T_<cr>=k_1B/l in which B the flexual rigidity of shaft. (5) In the case T_<cr>>T_<max>, the flexible shaft is broken, and when T_<cr><T_<max>, the shaft is buckled.
社団法人日本材料学会の論文
1961-12-15