The development of the apparatus for structure strength test of cervical vertebra

颈椎结构强度测试仪的研制

• 批准号: 16500292
• 负责人: KAWANO Shunichi
• 金额: $ 1.02万
• 依托单位: Yamaguchi University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2004
• 资助国家: 日本
• 起止时间: 2004 至 2005
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-16500292/
• 关键词: Cervicalp Vertebra; Pure Bending of Cervicalp Vertebra; Mechanical Behavior of Cervicalp Vertebra; むち打ち症; 単純曲げ; バイオメカニクス

In this research, we describe an apparatus for the structure strength test of cervicalp vertebra and investigate the mechanical behavior of cervicalp vertebra (C.V) by using this appratus. The test apparatus is composed of 4 linear guide actuators, two AC servo motors, 4 load and 2 torque sensors. In order to obtain the pure bending moment of C.V, the reaction loads caused by the torque are canceled by the controllers. Bend tests are carried out on a cervicalp vertebra of pig.The following conclusions are obtained in this research.1)Bending of C.V ; The bending torques decrease with an decreasing reaction load and the pure bending moments of C.V are obtained by using the test apparatus.2)Compression of C.V ; The compression load on the C.V brings about the large reaction load on the vertical axis of a longitudinal C.V. The experimental result shows that the C.V is buckled easiy by the bending torque on C.V conbined with the compression load.

本文介绍了一种颈椎结构强度测试装置，并利用该装置对颈椎的力学行为进行了研究。试验装置由4个直线导轨驱动器、2个交流伺服电机、4个载荷传感器和2个扭矩传感器组成。为了获得C.V的纯弯矩，由扭矩引起的反作用载荷由控制器抵消。本文对猪颈椎进行了弯曲试验，得到了以下结论：1）颈椎的弯曲，弯曲力矩随反力载荷的减小而减小，用本试验装置得到了颈椎的纯弯矩; 2）颈椎的压缩，弯曲力矩随反力载荷的减小而减小;试验结果表明，在弯曲力矩的作用下，C. V在垂直轴上产生了较大的反力再加上压缩负荷。