Compliant mechanisms like a parallel guidance and a cross pivot flexure contain leaf-springs. The basic elastic elements like leaf-springs and wire flexures constrain Degrees-Of-Freedom (DOFs) when flat or straight respectively. However, when deflected these elastic elements lose stiffness rapidly. Therefore, mechanisms containing leaf-springs and wire flexures are suitable for small deflections only. This paper presents an elastic element, a so-called ‘curved hinge flexure’, which shows only a limited stiffness decrease at large rotational deflections of the initially 3 stiff directions. When comparing a curved hinge flexure with a single leaf-spring with comparable rotational compliance over a ± 15 degrees stroke, the stiffness in the stiff directions is 2.5 to 14 times higher.
|Title of host publication||Proceedings of the 24th ASPE Annual Meeting [cd-rom]|
|Place of Publication||Monterey, California, USA|
|Publisher||American Society for Precision Engineering|
|Number of pages||4|
|Publication status||Published - 4 Oct 2009|
|Event||24th ASPE Annual Meeting 2009 - Monterey, United States|
Duration: 4 Oct 2009 → 9 Oct 2009
Conference number: 24
|Conference||24th ASPE Annual Meeting 2009|
|Period||4/10/09 → 9/10/09|
Brouwer, D. M., Meijaard, J. P., & Jonker, J. B. (2009). Elastic element showing low stiffness loss at large deflection. In Proceedings of the 24th ASPE Annual Meeting [cd-rom] (pp. 1-4). Monterey, California, USA: American Society for Precision Engineering.