Abstract
A cable-driven parallel manipulator is a manipulator whose end-effector is driven by a number of parallel cables instead of rigid links. Since cables always have more flexibility than rigid links, a cable manipulator bears a concern of possible vibration. Thus, investigation of vibration of cable manipulators caused by cable flexibility is important for applications requiring high system stiffness or bandwidth. This paper provides a vibration analysis of general 6-DOF cable-driven parallel manipulators. Based on the analysis of the natural frequencies of the multibody system, the study demonstrates that a cable manipulator can be designed stiff enough for special applications like the cable-manipulator based hardware-in-the-loop simulation of contact dynamics. Moreover, under an excitation, a cable may vibrate not only in its axial direction, but also in its transversal direction. The paper also analyzes the vibration of cable manipulators caused by cable flexibilities in both axial and transversal directions. It is shown that the vibration of a cable manipulator due to the transversal vibration of cables can be ignored comparing to that due to the axial flexibility of cables.
Similar content being viewed by others
References
Ming, A., Higuchi, T.: Study on multiple degree-of-freedom positioning mechanism using wires (part 1). Int. J. Jpn. Soc. Precis. Eng. 28(2), 131–138 (1994)
Roberts, R.G., Graham, T., Lippitt, T.: On the inverse kinematics, statics, and fault tolerance of cable-suspended manipulators. J. Robot. Syst. 15(10), 581–597 (1998)
Bosscher, P.M.: Disturbance robustness measures and wrench-feasible workspace generation techniques for cable-driven manipulators. Ph.D. Thesis, Georgia Institute of Technology (2004)
Williams II, R.L., Gallina, P.: Translational planar cable-direct-driven robots. J. Intell. Robot. Syst. 37, 69–96 (2003)
Bosscher, P., Ebert-Uphoff, I.: Wrench-based analysis of cable-driven robots. In: Proc. of IEEE Int. Conf. on Robotics and automation, New Orleans, LA, pp. 4950–4955 (2004)
Behzadipour, S., Khajepour, A.: A new cable-based parallel robot with three degrees of freedom. Multibody Syst. Dyn. 13(4), 371–383 (2005)
Oh, S.-R., Mankala, K.K., Agrawal, S.K., Albus, J.S.: Dynamic modeling and robust controller design of a two-stage parallel cable robot. Multibody Syst. Dyn. 13(4), 385–399 (2005)
Oh, S.-R., Agrawal, S.K.: Cable suspended planar robots with redundant cables: controllers with positive tensions. IEEE Trans. Robot. 21(3), 457–465 (2005)
Diao, X., Ma, O.: Workspace analysis of a 6-DOF cable robot for hardware-in-the-loop dynamic simulation. In: Proc. of the IEEE Int. Conf. on Intelligent Robots and Systems, Beijing, China, pp. 4103–4108 (2006)
Gouttefarde, M., Gosselin, C.: Analysis of the wrench-closure workspace of planar parallel cable-driven mechanisms. IEEE Trans. Robot. 22(3), 434–445 (2006)
Stump, E., Kumar, V.: Workspaces of cable-actuated parallel manipulators. J. Mech. Des. 128(1), 159–167 (2006)
Trevisani, A., Gallina, P., Williams, R.L.: Cable-direct-driven robot (CDDR) with passive SCARA support: theory and simulation. J. Intell. Robot. Syst. 46(1), 73–94 (2006)
Ma, O., Diao, X.: Dynamics analysis of a cable-driven parallel manipulator for hardware-in-the-loop dynamic simulation. In: Proc. of the IEEE/ASME Int. Conf. on Advanced Intelligent Mechatronics, Monterey, CA, pp. 837–842 (2005)
Gosselin, C., Zhang, D.: Stiffness analysis of parallel mechanisms using a lumped model. Int. J. Robot. Autom. 17(1), 17–27 (2002)
Gosselin, C.: Stiffness mapping for parallel manipulators. IEEE Trans. Robot. Autom. 6(3), 337–382 (1990)
Chakarov, D.: Study of the passive compliance of parallel manipulators. Mech. Mach. Theory 34(3), 373–389 (1999)
Dagalakis, N.G., : Stiffness study of a parallel link robot crane for shipbuilding applications. J. Offshore Mech. Arct. Eng. 111(3), 183–193 (1989)
Verhoeven, R., Hiller, M., Tadokoro, S.: Workspace, stiffness, singularities and classification of tendon-driven Stewart platforms. In: Proc. of the ARK’98 6th Int. Symposium on Advances in Robot Kinematics, Strobl, Austria, pp. 105–114 (1998)
Behzadipour, S., Khajepour, A.: Stiffness of cable-based parallel manipulators with application to stability analysis. J. Mech. Des. 128(1), 303–310 (2006)
Choe, W., Kino, H.: A design of parallel wire driven robots for ultrahigh speed motion based on stiffness analysis. In: Japan/USA Symposium on Flexible Automation, vol. 1, pp. 159–166 (1996)
Kawamura, S., Kino, H., Won, C.: High-speed manipulation by using a parallel wire-driven robots. Robotica 18, 13–21 (2000)
Liu, J., Ning, K., Zhao, M.: Model of a new type wire driven parallel robot system. J. Northeast. Univ. (Nat. Sci.) 23(10), 988–991 (2002) (in Chinese)
Diao, X., Ma, O.: A method of verifying force-closure condition for general cable manipulators with seven cables. Mech. Mach. Theory 42(12), 1563–1576 (2007)
Ma, O., : On the validation of SPDM task verification facility. J. Robot. Syst. 21(5), 219–235 (2004)
Rao, S.S.: Mechanical Vibrations, 4th edn. Prentice Hall, New York (2003)
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Diao, X., Ma, O. Vibration analysis of cable-driven parallel manipulators. Multibody Syst Dyn 21, 347–360 (2009). https://doi.org/10.1007/s11044-008-9144-0
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11044-008-9144-0