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Using a high resolution motion capture system to determine 6-DOF whole-body vibration accelerations

机译：使用高分辨率运动捕捉系统确定6自由度的全身振动加速度

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Comprehensive investigations of the human response to vibration require many markers, accelerometers, and electrodes. The use of multiple measurement systems can result in time intensive subject preparation, large memory requirements for data storage and processing, skin motion artifacts, and subject encumbrance. The purpose of this study was to determine if a VICON motion capture system could reliably and accurately measure translational and rotational acceleration levels produced by mobile machines, thereby eliminating the need for accelerometers and potentially minimizing the aforementioned problems. Simulating these vibration exposures in a laboratory, it was found that translational displacements ≥ 0.1 mm produced absolute peak and RMS average acceleration measurement differences less than 5% between the VICON system and an accelerometer. The absolute peak and RMS rotational accelerations determined by the VICON system and those produced by a PRSCO hexapodrobot differed by 5.44 ± 3.87% and 3.57 ± 2.44% respectively. Accounting for the vibration attenuation of the human body, the VICON system also appears well suited for determining 6-DOF acceleration levels in laboratory seat-to-head vibration transmission studies.
机译：人体对振动反应的全面研究需要许多标记物，加速计和电极。使用多个测量系统可能会导致时间密集的受试者准备工作，数据存储和处理所需的大量内存，皮肤运动伪影以及受试者负担。这项研究的目的是确定VICON运动捕捉系统是否可以可靠，准确地测量移动机器产生的平移和旋转加速度水平，从而消除对加速度计的需求，并有可能将上述问题最小化。在实验室中模拟这些振动暴露后，发现VICON系统和加速度计之间的平移位移≥0.1 mm产生的绝对峰值和RMS平均加速度测量值差异小于5％。由VICON系统确定的绝对峰值和RMS旋转加速度与由PRSCO六角机器人产生的绝对峰值加速度和峰值加速度分别相差5.44±3.87％和3.57±2.44％。考虑到人体的振动衰减，VICON系统也似乎非常适合在实验室座椅到头部的振动传递研究中确定6自由度加速度水平。

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