| 一种V形梁结构的双稳态惯性开关 |
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| 引用本文： | 赵剑,贾建援,王洪喜,勾燕洁.一种V形梁结构的双稳态惯性开关[J].航空学报,2008,29(5):1157-1162. |
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| 作者姓名： | 赵剑 贾建援 王洪喜 勾燕洁 |
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| 作者单位： | 1. 西安电子科技大学,机电工程学院,陕西,西安,710071
2. 西安工业大学,机电工程学院,陕西,西安,710032 |
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| 基金项目： | 国家自然科学基金联合基金 |
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| 摘 要： | 利用V形梁结构的双稳态跳转特性，设计了一种具有显著阈值特性的双稳态惯性开关，并建立了阻尼力、惯性力、弹性力及触点碰撞力等多力耦合作用下的开关动力学模型。开关结构主要由触点、弹性元件及其支撑的惯性质量块构成。动态仿真及实验结果表明开关具有良好的阈值特性。采用离心测试装置测得开关闭合阈值为9.6g，与设计值10g的偏差仅为4％，断开阈值为-3.1g，开关响应时间低于5 ms, 闭合后在零惯性力作用下仍能使开关保持闭合状态，验证了V形梁结构惯性开关设计理论的有效性和可行性，因而在航空、航天及汽车电子安全领域具有广阔的应用前景。
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| 关 键 词： | 惯性开关 双稳态 V形梁 非线性 加速度阈值 屈曲 |
Bistable Inertial Switch with V-shaped Beam Structure |
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| Zhao Jian,Jia Jianyuan,Wang Hongxi,Gou Yanjie.Bistable Inertial Switch with V-shaped Beam Structure[J].Acta Aeronautica et Astronautica Sinica,2008,29(5):1157-1162. |
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| Authors: | Zhao Jian Jia Jianyuan Wang Hongxi Gou Yanjie |
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| Institution: | Zhao Jian1,Jia Jianyuan1,Wang Hongxi2,Gou Yanjie1(1.School of Mechano-electronic Engineering,Xidian University,Xi\'an 710071,China)(2.School of Mechano-electronic Engineering,Xi\'an Technological University,Xi\'an 710032,China) |
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| Abstract: | A bistable inertial switch with V-shaped buckling beams is designed by utilizing the snap-through characteristic of the V-shaped beam, which mainly consists of the parallel V-shaped beams, contact point, and the inertial mass. The dynamic model of the inertial switch is established considering the effects of the coupled forces such as film-damping force, elastic force, inertial force, and contact force. The results of the simulation and experiments show that the switches have good threshold characteristics ... |
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| Keywords: | inertial switch bistability V-shaped beam nonlinearity acceleration threshold buckling |
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