Anderson W R, Boster R A, Willems G C
Aviat Space Environ Med. 1978 Jan;49(1 Pt. 2):240-52.
A series of experiments was designed to measure the head X and Z accelerations and the intracranial pressure in the unrestrained head of a rhesus monkey. The subject was exposed to a continuum of vibration frequencies from 2 to 35 Hz and peak acceleration amplitudes of 5, 10, 20, and 40 m/s2. The resulting data was used to build a frequency response model relating the head accelerations and pressures to the torso acceleration. The head-to-torso relationships, based upon a single subject, were both repeatable and invariant for torso acceleration amplitudes of 10, 20, and 40 m/s2. At frequencies above the 10Hz, the model strongly suggested the presence of linear system, and the inherent advantages of superposition. The model demonstrates the validity of the experimental method, involving a slow sweep through a range of frequencies, and of the analysis procedures used. More importantly, it promises to be a useful approach to the study of human response to vibration.
设计了一系列实验来测量恒河猴无约束头部的X和Z方向加速度以及颅内压。实验对象暴露于2至35Hz的连续振动频率以及5、10、20和40m/s²的峰值加速度幅值下。所得数据用于建立一个频率响应模型,该模型将头部加速度和压力与躯干加速度相关联。基于单个实验对象的头部与躯干的关系,对于10、20和40m/s²的躯干加速度幅值而言,既是可重复的也是不变的。在高于10Hz的频率下,该模型有力地表明存在线性系统以及叠加的固有优势。该模型证明了实验方法(包括在一系列频率范围内进行缓慢扫描)以及所使用的分析程序的有效性。更重要的是,它有望成为研究人类对振动响应的一种有用方法。