Large stroke three degree-of-freedom spherical flexure joint

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Multi degree of freedom flexure joints are often limited to small deflection angles, because of their strong loss of stiffness in support directions when deflected, or they have a large range of motion but are initially already compliant also in the intended support directions. In this paper, an innovative design for a high performance large stroke spherical flexure joint is presented which can maintain a high level of support stiffness over its full range of motion. A series of flexural topologies are optimized and compared which resulted in a flexure joint design which can achieve a support stiffness of almost 100N/mm at a tilt angle of 30 degrees. Experimental validations have been conducted in order to validate the results and confirm this high level of support stiffness at large tilt angles.

Original languageEnglish
Title of host publicationProceedings of the 17th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2017
Number of pages2
ISBN (Electronic)9780995775107
Publication statusPublished - 2017
Event17th International Conference & Exhibition 2017 - Hannover Congress Centre, Hannover, Germany
Duration: 29 May 20172 Jun 2017
Conference number: 17


Conference17th International Conference & Exhibition 2017
Abbreviated titleEUSPEN 2017
Internet address


  • Compliant mechanisms
  • Flexure mechanisms
  • Large stroke
  • Spherical joints


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