Theoretical and experimental determination of dynamic friction coefficient for a cable-drum system

Date

2010-09-18

Author

BAYAR, GÖKHAN
Konukseven, Erhan İlhan
Koku, Ahmet Buğra

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

183
views

0
downloads

Cable-drum systems are utilized to convert the rotary motion of a drum into a translational motion of a linear stage connected to the cable. These systems are preferred where low backlash and high stiffness is expected. They are commonly employed in machines like elevators, photocopy machines, printers, plotters etc. For machines having long working ranges, cable-drum systems employing a high resolution encoder offers a practical low cost alternative in position sensing. In most traditional machines and equipments, to get linear position information; potentiometers, linear encoders, laser range finders etc. are commonly used. However, these alternatives are expensive and their installation is not straight forward. Cable-drum systems are not problem free either. The problem coming from using cable-drum system as a linear position sensor grows out of dynamic friction. In this study, the change in the dynamic friction coefficient of the cable drum system is modeled by using Euler and LuGre friction approaches. In order to see the change of the friction values, the developed model is simulated. To verify of the theoretical results, an experimental set-up is constructed. Both results are presented. It is concluded that for better positioning control change in dynamic friction coefficient during the motion should be accounted for.

Subject Keywords

Dynamic friction coefficient, Cable, Drum, Linear encoder, Positioning system

URI

https://hdl.handle.net/11511/46254

DOI

https://doi.org/10.1007/978-90-481-9689-0_40

Collections

Department of Mechanical Engineering, Conference / Seminar

Suggestions

OpenMETU
Core

Analysis and design of a novel reciprocating compressor utilizing a minfas-tar mechanism(s) Ercan, Abdulkadir; Soylu, Reşit; Department of Aerospace Engineering (2021-1-26) Similar to the slider crank mechanism that is utilized in a conventional reciprocating compressor, the MinFaS-TaR (Minimum Friction and Shaking – Translation to any Rotation) mechanism may also be used to convert a rotational motion into a translational motion. In the MinFaS-TaR mechanism, the translational and rotational motions can be related to each other in any desired manner. Furthermore, it has favourable dynamic properties. In this study, the piston motion function, , or the chamber pressure function...
Theoretical and experimental determination of capstan drive slip error Baser, Ozgur; Konukseven, Erhan İlhan (2010-06-01) Cable capstan drives are rotary transmission elements widely used in robot applications because of their low inertia, low backlash, high stiffness and simplicity. The cable in capstan drives is typically wrapped around the input and output drums in a figure-eight pattern and is the principle component for power transmission. In this paper an analytical method is developed for predicting the transmission error of capstan drives due to cable slippage on the drum so that designers can include this in the contr...
Computational study of flapping airfoil aerodynamics Tuncer, İsmail Hakkı (American Institute of Aeronautics and Astronautics (AIAA), 2000-05-01) Unsteady, viscous, low-speed flows over a NACA 0012 airfoil oscillated in plunge and/or pitch at various reduced frequency, amplitude, and phase shift are computed. Vortical wake formations, boundary-layer flows at the leading edge, the formation of leading-edge vortices and their downstream convection are presented in terms of unsteady particle traces. Flow separation characteristics and thrust-producing wake profiles are identified. Computed results compare well with water tunnel flow visualization and fo...
Investigation of microwave metamaterial based on H-shaped resonator in a waveguide configuration and its sensor and absorber applications Sabah, Cumali; Taygur, Mehmet Mert; ZORAL, EMİNE YEŞİM (2015-04-13) A microwave metamaterial (MTM) based on H-shaped resonator in a waveguide configuration is introduced and investigated both numerically and experimentally for X-band frequencies. The proposed model is designed and fabricated on both sides of the substrate and exhibits strong magnetic resonance at around 10.5GHz. Additionally, it has very simple design which improves and simplifies the fabrication process. Besides, only one single slab is used in the simulation and experiment which provides a reduction in th...
Investigation of subsynchronous resonance risk in the 380 kv Turkish electric network Ozay, N.; Güven, Ali Nezih (null; 1988-12-01) Subsynchronous resonance (SSR) occurs when a resonant frequency of a series compensated transmission system interacts with a natural frequency of the turbine prime mover. This form of SSR is referred to as torsional interaction which, under certain conditions, may become self-excited and cause serious damage to electrical equipment and turbine shafts. The presence of a thermal power plant (Kangal) in the close vicinity of a group of series capacitors in Eastern Turkey necessitated a careful investigation of...

Citation Formats

G. BAYAR, E. İ. Konukseven, and A. B. Koku, “Theoretical and experimental determination of dynamic friction coefficient for a cable-drum system,” 2010, vol. 5, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/46254.