首页> 外文会议>2002 ASME International Mechanical Engineering Congress and Exposition , Nov 17-22, 2002, New Orleans, Louisiana >DESIGN OF A FUNCTIONALLY BINARY PINNED-PINNED SEGMENT FOR USE AS A TENSION-COMPRESSION SPRING IN COMPLIANT MICRO MECHANISMS
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DESIGN OF A FUNCTIONALLY BINARY PINNED-PINNED SEGMENT FOR USE AS A TENSION-COMPRESSION SPRING IN COMPLIANT MICRO MECHANISMS

机译:功能性二重钉固定段的设计,用作相关微机构的拉压弹簧

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摘要

As mechanisms approach the micro scale, manufacture and assembly of linear coil springs becomes nearly impossible. For this reason, compliant functionally binary pinned-pinned segments are frequently used in place of them. A new pseudo-rigid-body model (PRBM) is presented for circular functionally binary pinned-pinned (FBPP) segments that undergo large, nonlinear deflections for both tension and compression. A new method of evaluating the maximum moment in the beam is presented, called the focal moment method, which significantly increases the accuracy of the force for a given displacement. This paper also shows how some FBPP segments can be modeled as simple linear tension/compression springs. The deflection limits for a given maximum error can be determined analytically, thereby making it possible to use optimization algorithms in the design of these springs. The effect of the size of the rigid pin joints is also discussed.
机译:随着机构接近微型规模,线性螺旋弹簧的制造和组装几乎变得不可能。因此,经常使用兼容的功能二进制固定引脚段代替它们。针对圆形的功能性二元固定销(FBPP)管段,提出了一种新的伪刚体模型(PRBM),该管段在拉伸和压缩时都会发生较大的非线性挠曲。提出了一种评估梁中最大力矩的新方法,称为焦矩方法,该方法可以显着提高给定位移的作用力精度。本文还展示了如何将某些FBPP节段建模为简单的线性拉伸/压缩弹簧。可以通过分析确定给定最大误差的挠度极限,从而可以在这些弹簧的设计中使用优化算法。还讨论了刚性销钉接头尺寸的影响。

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