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National Chung Hsing University Institutional Repository - NCHUIR > 工學院 > 精密工程研究所 > 依資料類型分類 > 期刊論文 >  A constant-force bistable mechanism for force regulation and overload protection

Please use this identifier to cite or link to this item: http://nchuir.lib.nchu.edu.tw/handle/309270000/126221

標題: A constant-force bistable mechanism for force regulation and overload protection
作者: Pham, Huy-Tuan;Wang, Dung-An
Contributors: 國立中興大學精密工程研究所
National Chung Hsing University,Graduate Institute of Precision Engineering
Miao-zhen Luo
關鍵字: Bistable;Constant-force mechanism;Overload protection
日期: 2011-7
Issue Date: 2012-10-19 16:38:33 (UTC+8)
Publisher: Elsevier Ltd.
摘要: A novel constant-force bistable mechanism (CFBM) allowing constant contact force and overload protection is developed. When a device equipped with a CFBM is loaded by an unknown force exceeding a critical force of the CFBM, the CFBM can snap to its other stable equilibrium state to safeguard the device. The bistability of the mechanism originates from combined compression and bending of the beam structures. Finite element analyses are used to characterize the constant-force behavior and bistability of the mechanism under static loading. A design formulation is proposed to find the CFBM shape for a specified displacement range with constant output force of the mechanism. Prototypes of the CFBM are fabricated and tested. The characteristics of the CFBM predicted by theory are verified by experiments. Using the CFBM, sophisticated sensors and control system for force regulation of machining systems can be eliminated.
Relation: Mechanism and Machine Theory, Volume 46, Issue 7, Page(s) 899-909.
Appears in Collections:[依資料類型分類] 期刊論文

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