単繊維の曲げモーメントに関する研究 : (第 2 報)曲げモーメントと曲率の関係を測定する為の装置の試作について

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The purpose of the research in this paper is to make trial manufacture for measuring equipment which is to make clear a relation between bending moment M (g. cm) and curvature 1/ρ (cm^<-1>) of single fibre. Where, the principle of this measuring apparatus on the trial manufacture is based on the theoretical consideration of part one in this paper. As become clear by plan W, X, Y and Z, the single fibre F is rotated horizontal direction at within the limits of angle θ_<ƒ>=±π/2,α=±π/4. In that time, at an origin O, fine bar B which connected with a single fibre F and a fine glass fibre tube bend by power. A light is applied from the upper part of the end point of fine bar B. Also, a magnifying glass which furnished graduation in angles is equiped the under part of the end point of fine bar B. Here, a light which applied for the end point of fine bar B and graduation in angles connect these both points. Thus, a deflectional angle θ_B of fine bar B indicate by graduation in angles of magnifying glass. Also, in that time rotate a single fibre F, a value of x and y which change every moment is recorded by x, y ploter. A speed of rotation which rotate a single fibre F is determined 0.125 revolution per minutes. A length ℓ of single fibre F of the test piece is 0.25cm. A length L of fine glass fibre tube, a length L of fine bar B is 12 inches, 30.52cm. Furthermore, a diameter of fine bar B is 0.1m/m φ at outside diameter and 0.05m/mφ in inside diameter. Hence, each factors on the angle θ_<ƒ> of single fibre, curvature 1/ρ, power P in the end point of fine bar B and bending moment M can calculate from theoretical equations (1) (2) (4) (5) and (21) of part one in this paper. Here, the theoretical equations (1) (2) (4) (5) and (21) is following. Namely, x=ρ・sinθ_<ƒ>=(ℓ・sinθ_<ƒ>)/θ_<ƒ>…(1) y=((1-cosθ_<ƒ>)・ℓ)/θ_<ƒ>…(2) M=P・x…(4) 1/ρ=θ_<ƒ>/ℓ…(5) P=(3E・I)/L^2・θ_B…(21) but, A value of x, y and θ_B is measuring value. Also, a value of ℓ, E, I and L is constant value. Furthermore, a value of θ_<ƒ>, ρ, P and M is calculating value.
金城学院大学の論文
1974-12-25

著者

寺島功
金城学院大学

単繊維の曲げモーメントに関する研究 : (第 2 報)曲げモーメントと曲率の関係を測定する為の装置の試作について

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