Computer Science > Robotics
[Submitted on 2 Aug 2021]
Title:Non-linear stiffness modeling of multi-link compliant serial manipulator composed of multiple tensegrity segments
View PDFAbstract:The paper focuses on the stiffness modeling of a new type of compliant manipulator and its non-linear behavior while interacting with the environment. The manipulator under study is a serial mechanical structure composed of dualtriangle segments. The main attention is paid to the initial straight configuration which may suddenly change its shape under the loading. It was discovered that under the external loading such manipulator may have six equilibrium configurations but only two of them are stable. In the neighborhood of these configurations, the manipulator behavior was analyzed using the Virtual Joint Method (VJM). This approach allowed us to propose an analytical technique for computing a critical force causing the buckling and evaluate the manipulator shape under the loading. A relevant simulation study confirmed the validity of the developed technique and its advantages in non-linear stiffness analysis.
Submission history
From: Damien Chablat [view email] [via CCSD proxy][v1] Mon, 2 Aug 2021 09:58:28 UTC (640 KB)
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