This paper deals with the workspace transition of the 3-rRPS metamorphic parallel mechanism in Hyperboloid configuration. The 3-rRPS metamorphic parallel mechanism is composed of three rRPS legs in which rR joint is reconfigurable. The reconfigurable rR joint allows the moving platform to switch into different Hyperboloid configurations. Two reconfiguration strategies of the mechanism are discussed. In Hyperboloid configurations, the three revolute joint axes are skew and are not parallel to the same plane. These axes can be set with any value within 0° and 90°. By using algebraic geometry approach and Euler parametrization, the workspace of the mechanism is characterized. This workspace is defined as point reachable workspace of any point on the moving platform. The shape of the workspace changes depending on the value of joint parameter angle ϕ. The primary decomposition is computed and it reveals that the 3-rRPS metamorphic parallel mechanism in Hyperboloid configurations can perform 3-dof coupled motions in which the translational motions are completely dependent on the rotational motions.
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ASME 2018 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
August 26–29, 2018
Quebec City, Quebec, Canada
Conference Sponsors:
- Design Engineering Division
- Computers and Information in Engineering Division
ISBN:
978-0-7918-5180-7
PROCEEDINGS PAPER
Workspace Transition of 3-rRPS Metamorphic Parallel Mechanism in Hyperboloid Configuration
Latifah Nurahmi,
Latifah Nurahmi
Institut Teknologi Sepuluh Nopember, Surabaya, Indonesia
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Dongming Gan
Dongming Gan
Khalifa University of Science and Technology, Abu Dhabi, UAE
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Latifah Nurahmi
Institut Teknologi Sepuluh Nopember, Surabaya, Indonesia
Dongming Gan
Khalifa University of Science and Technology, Abu Dhabi, UAE
Paper No:
DETC2018-86356, V05AT07A053; 8 pages
Published Online:
November 2, 2018
Citation
Nurahmi, L, & Gan, D. "Workspace Transition of 3-rRPS Metamorphic Parallel Mechanism in Hyperboloid Configuration." Proceedings of the ASME 2018 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. Volume 5A: 42nd Mechanisms and Robotics Conference. Quebec City, Quebec, Canada. August 26–29, 2018. V05AT07A053. ASME. https://doi.org/10.1115/DETC2018-86356
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