Zirbel Shannon A, Tolman Kyler A, Trease Brian P, Howell Larry L
Vehicle Systems Division, Aerospace Corporation, El Segundo, CA, United States of America.
Department of Mechanical Engineering, Brigham Young University, Provo, UT, United States of America.
PLoS One. 2016 Dec 28;11(12):e0168218. doi: 10.1371/journal.pone.0168218. eCollection 2016.
Compliant bistable mechanisms are monolithic devices with two stable equilibrium positions separated by an unstable equilibrium position. They show promise in space applications as nonexplosive release mechanisms in deployment systems, thereby eliminating friction and improving the reliability and precision of those mechanical devices. This paper presents both analytical and numerical models that are used to predict bistable behavior and can be used to create bistable mechanisms in materials not previously feasible for compliant mechanisms. Materials compatible with space applications are evaluated for use as bistable mechanisms and prototypes are fabricated in three different materials. Pin-puller and cutter release mechanisms are proposed as potential space applications.
柔顺双稳态机构是一种整体式装置，具有两个稳定平衡位置，中间由一个不稳定平衡位置隔开。它们在空间应用中有望作为展开系统中的非爆炸式释放机构，从而消除摩擦并提高这些机械设备的可靠性和精度。本文提出了用于预测双稳态行为的解析模型和数值模型，这些模型可用于在以前不适合柔顺机构的材料中创建双稳态机构。评估了与空间应用兼容的材料用作双稳态机构，并使用三种不同材料制造了原型。提出了销拉器和切割器释放机构作为潜在的空间应用。
