Studies on an Electro-Hydraulic Load Input Tester for Fabrics Part 1: Constructing the Load Input Tensile Tester

Shigeru Aonuma; Takashi Murakami

doi:10.4188/jte1955.20.90

Studies on an Electro-Hydraulic Load Input Tester for Fabrics

Part 1: Constructing the Load Input Tensile Tester

Shigeru Aonuma, Takashi Murakami

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Keywords: TENSILE TESTERS, FABRIC PROPERTY, SERVOMECHANISMS

JOURNAL FREE ACCESS

1974 Volume 20 Issue 4 Pages 90-100

DOI https://doi.org/10.4188/jte1955.20.90

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Published: 1974 Received: - Available on J-STAGE: July 07, 2008 Accepted: - Advance online publication: - Revised: -
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Date of correction: July 07, 2008 Reason for correction: - Correction: ABSTRACT Details: Wrong : The load input tensile tester, the performance of which is not influenced by the mechanical properties of the material to be tested, was constructed. Its ability is investigated experiment-ally, to show the following results.
1) To avoid the velocity error the servo mechanism should satisfy the inequality:
1/K_s+K_pƒ<<K_mK_ƒ
2) To avoid the influence of the material properties to be tested, the hydraulic servo system should satisfy the inequality:
(A²/K₂)K_pƒ>>1
3) To make _??_ performance of the tester independent of the material properties to be tested, a compensation circuit of the servo system should satisfy the conditions:
K₀T₂T_pƒ>>K_pƒT₁
G_c(s)=(T₂s+1)/(T₁s+1), T₂>T₁
Right : The load input tensile tester, the performance of which is not influenced by the mechanical properties of the material to be tested, was constructed. Its ability is investigated experimentally, to show the following results.
1) To avoid the velocity error the servo mechanism should satisfy the inequality:
1/K_s+K_pƒ<<K_mK_ƒ
2) To avoid the influence of the material properties to be tested, the hydraulic servo system should satisfy the inequality:
(A²/K₂)K_pƒ>>1
3) To make _??_ performance of the tester independent of the material properties to be tested, a compensation circuit of the servo system should satisfy the conditions:
K₀T₂T_pƒ>>K_pƒT₁
G_c(s)=(T₂s+1)/(T₁s+1), T₂>T₁

Date of correction: July 07, 2008 Reason for correction: - Correction: CITATION Details: Wrong : [1] T. E. Olofson: Ann. Sci. Text. Belges, p. 7-30 (1955)
[2] R. Meredith and J. W. Shearle: Physical Method of Investigating Textiles, p. 227, Textile Book Publisher (1958)
[3] P. B. Checkland, T. H. Bull, E. J.Bakku: Text. Res. J., 28, 399 (1958)
[4] W. F. Kilby: J. Text. Inst., 54, T 9 (1963)
[5] W. D. Freston, Jr. M. M. Platt and M. M. Schoppee: Text. Res. J., 37, 948 (1967)
[6] M. Niwa, S. Kawabata, Y. Nanashima and H. Kawai: J. Tex. Mach. Soc. Japan, 23, 6, T123 (1970)
[7] T. Murakami: J. Japanftydr. and Pne. Soc. 4, 1, 15 (1973)
[8] T. Murakami: J. Japan Hydr. and Pne. Soc. 4, 1, 17 (1973)
[9] F. R. Eirich: Rheology, Vol. V, Theory and Applica-tions, p. 523, Academic Press (1969)
[10] F. Murakami: Process analysis for textile engineers, 17, RIKO, Japan (1964)
[11] T. Murakami: J. Japan Hydr. and Pne. Soc. 4, 1, 16 (1973)
[12] Hydraulic servo technics: Edited by planning committee of the lecture note of hydraulic servo technics 6, 14 (1972)
[13] Handbook of Fibers: Edited by J. Fib. Sci. Tech. Japan, 210 (1968)
[14] T. Murakami: J. Japanftydr. and Pne. Soc. 4, 1, 15 (1973)
[15] T. Murakami: J. Japan Hydr. and Pne. Soc. 4, 1, 16 (1973)
[16] T. Murakami: J. Japanftydr. and Pne. Soc. 4, 1, 15 (1973)

Right : [1] T. E. Olofson: Ann. Sci. Text. Belges, p. 7-30 (1955)
[2] R. Meredith and J. W. Shearle: Physical Method of Investigating Textiles, p. 227, Textile Book Publisher (1958)
[3] P. B. Checkland, T. H. Bull, E. J.Bakku: Text. Res. J., 28, 399 (1958)
[4] W. F. Kilby: J. Text. Inst., 54, T 9 (1963)
[5] W. D. Freston, Jr. M. M. Platt and M. M. Schoppee: Text. Res. J., 37, 948 (1967)
[6] M. Niwa, S. Kawabata, Y. Nanashima and H. Kawai: J. Tex. Mach. Soc. Japan, 23, 6, T123 (1970)
[7] T. Murakami: J. Japan Hydr. and Pne. Soc. 4, 1, 15 (1973)
[8] T. Murakami: J. Japan Hydr. and Pne. Soc. 4, 1, 17 (1973)
[9] F. R. Eirich: Rheology, Vol. V, Theory and Applications, p. 523, Academic Press (1969)
[10] F. Murakami: Process analysis for textile engineers, 17, RIKO, Japan (1964)
[11] T. Murakami: J. Japan Hydr. and Pne. Soc. 4, 1, 16 (1973)
[12] Hydraulic servo technics: Edited by planning committee of the lecture note of hydraulic servo technics 6, 14 (1972)
[13] Handbook of Fibers: Edited by J. Fib. Sci. Tech. Japan, 210 (1968)
[14] T. Murakami: J. Japan Hydr. and Pne. Soc. 4, 1, 15 (1973)
[15] T. Murakami: J. Japan Hydr. and Pne. Soc. 4, 1, 16 (1973)
[16] T. Murakami: J. Japan Hydr. and Pne. Soc. 4, 1, 15 (1973)

Date of correction: July 07, 2008 Reason for correction: - Correction: PDF FILE Details: -

Abstract

The load input tensile tester, the performance of which is not influenced by the mechanical properties of the material to be tested, was constructed. Its ability is investigated experimentally, to show the following results.
1) To avoid the velocity error the servo mechanism should satisfy the inequality:
1/K_s+K_pƒ<<K_mK_ƒ
2) To avoid the influence of the material properties to be tested, the hydraulic servo system should satisfy the inequality:
(A²/K₂)K_pƒ>>1
3) To make _??_ performance of the tester independent of the material properties to be tested, a compensation circuit of the servo system should satisfy the conditions:
K₀T₂T_pƒ>>K_pƒT₁
G_c(s)=(T₂s+1)/(T₁s+1), T₂>T₁

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