[1]王丰磊,叶茂,付明科.坐姿状态下人-结构相互作用体系水平振动特性[J].华侨大学学报(自然科学版),2018,39(1):20-23.[doi:10.11830/ISSN.1000-5013.201702055]
　WANG Fenglei,YE Mao,FU Mingke.Horizontal Vibration Characteristics of Human-Structure Interaction System in Sitting Posture[J].Journal of Huaqiao University(Natural Science),2018,39(1):20-23.[doi:10.11830/ISSN.1000-5013.201702055]
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坐姿状态下人-结构相互作用体系水平振动特性()
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《华侨大学学报（自然科学版）》[ISSN:1000-5013/CN:35-1079/N]

卷:
第39卷
期数:
2018年第1期
页码:
20-23
栏目:
出版日期:
2018-01-17

文章信息/Info

Title:
Horizontal Vibration Characteristics of Human-Structure Interaction System in Sitting Posture
文章编号:
1000-5013(2018)01-0020-04
作者:
王丰磊;  叶茂;  付明科
广州大学 淡江大学工程结构灾害与控制联合研究中心, 广东 广州 510006
Author(s):
WANG Fenglei;  YE Mao;  FU Mingke
Tamkang University Joint Research Center for Engineering Structure Disaster Prevention and Control, Guangzhou University, Guangzhou 510006, China
关键词:
人-结构系统;  质量-平台系统;  水平振动;  振型频率;  动力特性;  坐姿
Keywords:
human-structure system;  mass-platform system;  horizontal vibration;  mode frequency;  dynamic characteristics;  sitting posture
分类号:
TU317.1
DOI:
10.11830/ISSN.1000-5013.201702055
文献标志码:
A
摘要:
针对人-结构系统水平振动问题,建立质量轻基频低的试验平台,研究人端坐于试验平台时该人-结构相互作用体系的水平振动特性.试验结果表明:自然端坐状态下,人体的不同朝向对结构的动力特性的影响不同.当人朝x向端坐时,结构多出一个振型频率,而基频恰好分布于两振型中间;而当人朝y向端坐时,结构仅有共振频率高于原结构基频.在研究中,人通常比较成质量块放在结构装置上,而事实上质量块对结构的振型阻尼比影响很小,人体能显著增大结构振型阻尼比.因此,不能将水平向自然端坐的人仅仅看作质量块,而应当成质量-弹簧-阻尼完整的体系.
Abstract:
Aiming at the system level of vibration structure, a low frequency light mass test platform was established to study the horizontal vibration of human-structure interaction system in sitting posture. The experimental results show that under the natural sitting state, the influence of different human orientations on the dynamic characteristics is different, when human orientation is x direction, the structure has one more vibration frequency, and fundamental frequency locates just between two modes; when human orientation is y direction, only the structure resonance frequency is higher than the fundamental frequency of original structure. The human usually is simulated into a mass on structure, the influence of the mass on the modal damping ratio is slight, bur human can significantly increase the structural modal damping ratio, therefore the human under the natural sitting state cannot be regarded simply as a mass, but should be combined into the whole system of mass-spring-damping.

参考文献/References:

[1] 苏冠兴,张志强,李爱群.人行天桥的MTMD减振控制研究[J].特种结构,2010(1):71-75.
[2] DALLARD P, FITZPATRICK T,FLINT A,et al.The Millennium Bridge, London: Problems and solutions[J].Structural Engineer,2001,79(8):15-17.
[3] SACHSE R.The influence of human occupants on the dynamic properties of slender structures[D].Sheffield:University of Sheffield,2002.
[4] IBRAHIM Z.The Effects of crowds on dynamic characteristics of stadia structures[D].Sheffield:University of Sheffield,2006.
[5] LITTLER J D.Full-scale testing of large cantilever grandstands to determine their dynamic response[J].Structures and Buildings,1998,15(2):123-134.
[6] LITTLER J D.Retractable grandstands: Dynamic response[M].Garston:RC Press,2000.
[7] ZHOU Ding.Free vibration of rectangular plates with attached discrete sprung masses[J].Shock and Vibration,2012,19(1):101-112.DOI:10.1155/2012/983576.
[8] 王海,周叮,王曙光.人-梁相互作用动力学模型研究[J].工程力学,2010,27(5):14-20.
[9] 何卫,谢伟平,刘 隆.人-板耦合系统动力特性研究[J].工程力学,2013,30(1):58-67.DOI:10.6052/j.issn.1000-4750.2012.02.0084.
[10] 李红利,陈政清.人-桥竖向动力相互作用效应理论与试验研究 [J].土木程学报,2014,47(6):78-87.DOI:10.15951/j.tmgcxb.2014.06.004.

备注/Memo

备注/Memo:
收稿日期: 2016-02-23
通信作者: 叶茂(1987-),男,副研究员,博士,主要从事结构振动的研究.E-mail:123698111@qq.com.
基金项目: 国家自然科学基金资助项目(51178126, 51208125); 广东省科技计划项目(2016B050501004); 广东省广州市科技计划项目(2013J2200074)
更新日期/Last Update: 2018-01-20