| 单跨架空索道货物脱钩跳跃弦振动响应分析 |
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| 引用本文： | 冯辉荣, 周成军, 周新年, 巫志龙. 单跨架空索道货物脱钩跳跃弦振动响应分析[J]. 力学与实践, 2014, 36(2): 190-194,189. doi: 10.6052/1000-0879-13-349 |
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| 作者姓名： | 冯辉荣 周成军 周新年 巫志龙 |
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| 作者单位： | 福建农林大学交通学院, 福州350002 |
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| 基金项目： | 国家本科“工程索道”精品课程（教高函[2010]14号）和福建省自然科学基金（2012J01070）资助项目. |
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| 摘 要： | 以单跨全悬增力式架空林业集材索道为例，研究在货物脱钩等突发情况下，承载索因积蓄的弹性能瞬间释放而产生自由振动. 基于弦振动理论，建立了在指定位置脱钩的悬索振动方程，分析了脱钩工况下悬索振动固有频率、周期、波长等特征参数及主振动、自由振动、总能量等响应变化规律，并以三维图形进行直观表征与分析. 说明了脱钩振动分析对林业架空索道的安装设计、技术改进与使用安全规程的指导意义.
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| 关 键 词： | 工程索道 脱钩跳跃 振动 工程指导意义 |
| 收稿时间： | 2013-08-20 |
| 修稿时间： | 2014-01-14 |
BOUNCING VIBRATION RESPONSE ANALYSIS OF THE CARGO UNHOOKING OF SINGLE SPAN AERIAL CABLEWAY |
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| FENG Huirong, ZHOU Chengjun, ZHOU Xinnian, WU Zhilong. BOUNCING VIBRATION RESPONSE ANALYSIS OF THE CARGO UNHOOKING OF SINGLE SPAN AERIAL CABLEWAY[J]. Mechanics in Engineering, 2014, 36(2): 190-194,189. doi: 10.6052/1000-0879-13-349 |
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| Authors: | FENG Huirong ZHOU Chengjun ZHOU Xinnian WU Zhilong |
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| Affiliation: | College of Traffic, Fujian Agriculture and Forestry University, Fuzhou 350002, China |
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| Abstract: | Based on the theory of string (rope) vibration, with the overhead skidding single span cableway with full suspension reinforcement as an example，the carrying rope bouncing and the free vibration due to the instant elastic energy release at cargo's unhooking are analyzed.The unhooking vibration model is established and the natural angular frequency, the period, the wavelength, the main vibration mode，the free modal vibration， and the total energy are discussed，and illustrated by 3D graphics.The results provide some guidance for the installation design, the improvement of the technology and the safety code of practice for forestry aerial ropeways. |
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| Keywords: | engineering cableway|jumping with unhooking|vibration|guiding significance of engineering |
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