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NC Control Point Estimator for Shape-Controlled Coil Spring
Technical Paper
2001-01-0495
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Event:
SAE 2001 World Congress
Language:
English
Abstract
Friction caused by side force on a damper axis results in riding discomfort. In order to cancel the side force, accurate shape control for coil springs have been recently become crucial. After designing a target coil shape using a finite element analysis (FEA), actual coiling processes can be done by a NC coiling machine(C/M). The problem with this method is that the NC coiling machine has its own characteristics which coiling experts have to consider when adjustments are made to the control points of the NC machine. This adjustment process usually takes significant amounts of time in order to meet the target coil shape, because the coiling experts do their adjustments by a conventional method based on their experience.
This paper describes how to automate the control point design process to reduce the coiling effort and to save time. An ARMA model is used for the coiling machine modeling and its dimensions are determined by the physical dimension of the actual coiling machine. Our own algorithm based on a linear descent method for control point adjustment is then proposed in this paper.
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Authors
Citation
Nishizawa, S., Ikeda, M., Enomoto, H., Sato, N. et al., "NC Control Point Estimator for Shape-Controlled Coil Spring," SAE Technical Paper 2001-01-0495, 2001, https://doi.org/10.4271/2001-01-0495.Also In
SAE 2001 Transactions Journal of Passenger Cars - Mechanical Systems
Number: V110-6; Published: 2002-09-15
Number: V110-6; Published: 2002-09-15
References
- Craig, J. Introduction to robotics 2nd Addison-Wesley, Inc. 1989
- Gotoh, T Imaizumi, T Optimization of Force Action Line with Spring Design on the McPherson Strut Suspension for Riding Comfort Proceedings of the 2000 SAE International Congress & Exposition Detroit, MI March 2000 2000-01-0101 75 81
- Luh, J. Zheng, Y. “Computation of Input Generalized Forces for Robots with Closed Kinematic Chain Mechanisms,” IEEE Journal of Robots and Automation RA-1 2 1985 95 103
- Raghavan, M. “An Atlas of Linkages for Independent Suspensions,” SAE Technical Paper Series No. 911925
- Suzuki, S. et al. “Approach to Minimizing Side Force of Helical Coil Spring for Riding Comfort,” SAE Technical Paper Series No. 940862
- Waldron, K. Raghavan, M. Roth, B. “Kinematics of Hybride Series-Parallel Manipulation System,” ASME Journal of Dynamics Systems, Measurement, and Control 111 1989 211 220
- Wunsch, T. et al. “Side Load Spring as a Solution to minimize Adverse Side Loads Acting on the McPherson Strut,” SAE Technical Paper Series No. 940862