Abstract
This paper presents analysis methods for the constant-orientation workspace and the reachable workspace of the planar suspended two-cable-driven parallel robots (CDPRs) under cable tension limits. These two workspaces are subspaces of the configuration space of the CDPR, and therefore they both need to satisfy the static equilibrium equation system. The consistent condition of the equation system requires that when the pose of the moving platform (MP) is in the configuration space, the wrench induced by the gravity of the MP must be in the column space of the matrix whose columns are wrenches induced by cable tensions. When the two wrenches induced by two cable tensions are linearly dependent, the MP loses a controllable degree of freedom and the pose is in the singular configuration detailed by an analytical method. The feasible ranges of cable tensions will limit and shrink the constant-orientation workspace and the reachable workspace. It’s proved that the analyses and conclusions in the paper are still valid when the MP suffers from a general external wrench instead of the gravity wrench.
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This project is supported by National Natural Science Foundation of China (Grant No. 51475331) and the Fundamental Research Funds for the Central Universities.
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Peng, Y., Bu, W. (2022). Workspace Analysis of Planar Suspended Two-Cable-Driven Parallel Robots. In: Tan, J. (eds) Advances in Mechanical Design. ICMD 2021. Mechanisms and Machine Science, vol 111. Springer, Singapore. https://doi.org/10.1007/978-981-16-7381-8_72
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DOI: https://doi.org/10.1007/978-981-16-7381-8_72
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