21114 脊柱構造解析の為の軟組織のモデリング(バイオエンジニアリング(3),OS3 バイオエンジニアリング)

概要

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We have proposed a finite element model for spinal structure analysis composed of solid and spring elements. Each vertebra is composed of solid elements. Soft tissues such as intervertebral disk and every joint and ligament are expressed by non-lineal spring. Mechanical characteristics of functional spinal unit of L1 and L2 was examined by the application of flexion, extension, lateral bending and axial rotation with the amount of 10Nm to upper vertebra, L1. whereas the lower vertebra L2 is fixed. By trial and error, the configuration of springs and the assignment of the value to real constant of each spring element were executed. The obtained result of the relation between loading moment (Nm) and rotation (degree) has a good correlation with the experimental one as a whole.
社団法人日本機械学会の論文
2006-03-09