全腰椎有限元模态分析

被引：49

作者：

项嫔 ^{[1
,2
]}

都承斐 ^{[1
,2
]}

赵美雅 ^{[1
,2
]}

田山 ^{[1
,2
]}

王丽珍 ^{[1
,2
]}

樊瑜波 ^{[1
,2
]}

机构：

[1] 北京航空航天大学生物与医学工程学院,生物力学与力生物学教育部重点实验室

[2] 科技部“空天生物技术与医学工程”国际联合研究中心

来源：

医用生物力学 | 2014年 / 29卷 / 02期

基金：

北京市自然科学基金;

关键词：

有限元分析; 腰椎; 模态分析; 动力学;

D O I：

10.16156/j.1004-7220.2014.02.005

中图分类号：

R687.3 [骨骼手术];

学科分类号：

100220 [骨科学];

摘要：

目的采用三维有限元方法研究人体腰椎的动力学特性。方法基于CT扫描图像建立并验证全腰椎L1～5节段有限元模型,对全腰椎进行有限元模态分析。结果提取腰椎的30阶自由模态,获得了腰椎在自由状态下的动态特性:腰椎共振频率分布集中;各阶模态最大振幅急剧变化,L5节段腰椎附近的振幅较大,是腰椎的薄弱环节。结论腰椎的模态分析是进一步进行动力学分析的基础,确定腰椎的固有频率、振型和振幅等振动参数,对于腰椎的振动特性分析和人机工程设计优化等方面具有重要意义。

引用

页码：154 / 160

页数：7

共 25 条

[1]

Dynamic Response of the Idiopathic Scoliotic Spine to Axial Cyclic Loads [J].

Li, Xin-Feng ;

Liu, Zu-De ;

Dai, Li-Yang ;

Zhong, Gui-Bin ;

Zang, Wei-Ping .

SPINE, 2011, 36 (07) :521-528

[2]

Loads on a spinal implant measured in vivo during whole-body vibration [J].

Rohlmann, Antonius ;

Hinz, Barbara ;

Bluethner, Ralph ;

Graichen, Friedmar ;

Bergmann, Georg .

EUROPEAN SPINE JOURNAL, 2010, 19 (07) :1129-1135

[3]

Vibration Modes of Injured Spine at Resonant Frequencies Under Vertical Vibration [J].

Guo, Li-Xin ;

Zhang, Ming ;

Zhang, Yi-Min ;

Teo, Ee-Chon .

SPINE, 2009, 34 (19) :E682-E688

[4]

Finite element analysis of weightbath hydrotraction treatment of degenerated lumbar spine segments in elastic phase.[J].M. Kurutz;L. Oroszváry.Journal of Biomechanics.2009, 3

[5]

Material Property Sensitivity Analysis on Resonant Frequency Characteristics of the Human Spine [J].

Guo, Li-Xin ;

Wang, Zhao-Wen ;

Zhang, Yi-Min ;

Lee, Kim-Kheng ;

Teo, Ee-Chon ;

Li, He ;

Wen, Bang-Chun .

JOURNAL OF APPLIED BIOMECHANICS, 2009, 25 (01) :64-72

[6]

Evaluation of lumbar vertebra injury risk to the seated human body when exposed to vertical vibration.[J].H. Ayari;M. Thomas;S. Doré;O. Serrus.Journal of Sound and Vibration.2008, 1

[7]

The feasibility of vibration as a tool to assess spinal integrity [J].

Kawchuk, Gregory N. ;

Decker, Colleen ;

Dolan, Ryan ;

Fernando, Nalin ;

Carey, Jason .

JOURNAL OF BIOMECHANICS, 2008, 41 (10) :2319-2323

[8]

Seated whole body vibrations with high-magnitude accelerations - relative roles of inertia and muscle forces [J].

Bazrgari, B. ;

Shirazi-Adl, A. ;

Kasra, M. .

JOURNAL OF BIOMECHANICS, 2008, 41 (12) :2639-2646

[9]

On the relationship between whole-body vibration exposure and spinal health risk [J].

Seidel, H .

INDUSTRIAL HEALTH, 2005, 43 (03) :361-377

[10]

Prediction of the Modal Characteristics of the Human Spine at Resonant Frequency Using Finite Element Models.[J].Li-Xin Guo;Ee-Chon Teo.Proceedings of the Institution of Mechanical Engineers; Part H: Journal of Engineering in Medicine.2005, 4

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