컴프레서 체결용 볼트의 적정 토크 설정에 관한 연구
A Study on Setting of Torque for Compressor Jointing Bolt
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초록
When a threaded fastener is tightened, the torque-tension relationship is highly sensitive to two friction components: thread friction and head friction. In this study, we carried out friction experiments and analyses to determine the optimum clamping torque setting for bolt joints. First, we measured the coefficients of thread friction and head friction under the same running conditions of the bolt clamping process for lubricated and nonlubricated bolts. We also measured axial tension through bolt clamping tests using lubricated and non-lubricated bolts attached to a strain gauge. Finally, we compared the experiment and theoretical results.
Abstract
When a threaded fastener is tightened, the torque-tension relationship is highly sensitive to two friction components: thread friction and head friction. In this study, we carried out friction experiments and analyses to determine the optimum clamping torque setting for bolt joints. First, we measured the coefficients of thread friction and head friction under the same running conditions of the bolt clamping process for lubricated and nonlubricated bolts. We also measured axial tension through bolt clamping tests using lubricated and non-lubricated bolts attached to a strain gauge. Finally, we compared the experiment and theoretical results.
참고문헌 (6)
- Bickford, J. H., "Am Introduction to the Design and Behavior of Bolted Joints" (1990), Marcel Dekker, Inc.
- Ikeda, K., "Tightening of Lolts", Trans. Jpn. Soc. Mech. Eng., 36(2), pp.1735~ (1970)
- Sakai, T, "Coefficient of Friction for the threaded fastener", Trans. Jpn. Soc. Mech. Eng., 43(7), pp.370~ (1977)
- Yoshimoto, I., "Comparison of Control Methods for Screw Tightening", J. Japan Soc. Prec. Eng., 44(2), pp.204~ (1978)
- An Integrated Approach to Bolted Joint Design to Obtain Targeted Clamp Loads, "McNeill, A.", ~, pp.SME Paper, AD 86-881 (1986)
- Bickford, J. H., "An Introduction to the Design and Behavior of Bolted Joints" (1990), Marcel Dekker