Multi-channel signal acquisition and real-time analysis system

本应用程序的目的是获取多通道信号采集和实时分析仪，用于有效分析同时测量的生物和机械系统的响应。所提出的分析仪对于许多团队的研究至关重要，这些研究将包括：a)人类对振动、噪声和组合噪声和振动的反应，并评估人类对工作场所振动和噪声的暴露；B)车辆多轴振动环境；C)适用于油罐车的多轴流固耦合；D)汽车和旋转机械产生的噪音；e)独立微结构的动力分析。多通道分析仪的主要理由是需要同时测量和分析人类对关键局部区域振动的反应，以及分析部分填充的油罐车的多轴瞬态晃动力和力矩，这些力和力矩已知会降低车辆的稳定性。通过实时分析不同区域和驱动点的各种测量值，可以大大减少测量到的人类反应的高度变异性。这只能通过建议的工具来实现。同时分析传播到身体各个部位的振动，并结合现有的流行病学数据，将对特定振动源的潜在伤害风险提供重要的见解，即手持电动工具的类型或全身振动的性质。对多轴晃动力和力矩的研究有望为提高此类车辆的方向稳定性极限提供替代挡板设计。所提出的研究工具还将用于车辆多轴振动环境特征的暴露评估和控制，人类对耦合噪声和振动的反应，以及车辆和旋转机械的振动声学分析。除上述外，申请人将应用建议的工具进行微观结构的动态响应分析。

The purpose of this application is to acquire a multi-channel signal acquisition and real-time analyzer for efficient analyses of simultaneously measured responses of biological and mechanical systems. The proposed analyzer is essential for a number of team's studies, which will include: a) human responses to vibration, noise and combined noise and vibration, and to assess human exposure to workplace vibration and noise; b) multi-axes vibration environment of vehicles; c) multi-axes fluid-structure interactions applicable to tank trucks; d) noise induced in automobiles and rotating machinery; and e) dynamic analyses of free standing micro-structures. Primary justifications for multi-channels analyzer stem from the need to simultaneously measure and analyze the human responses to vibration in critical localized areas, and analyses of multi-axes transient slosh forces and moments in partly-filled tank trucks that are known to reduce the vehicle stability. The high degree of variabilities in measured human responses can be considerably reduced through real-time analyses of various measurands at different local segments and driving-points. This can be only realized with the proposed tool. The simultaneous analyses of transmitted vibration to various body segments together with available epidemiological data would provide significant insight on potential injury risks of particular sources of vibration, namely, types of hand-held power tools or nature of whole-body vibration. The studies on multi-axes slosh forces and moments are expected to provide alternate baffles designs for enhancing the directional stability limits of such vehicles. The proposed research tool will also be used in studies involving characterization of multi-axes vibration environment of vehicles for exposure assessments and control, human responses to coupled noise and vibration, and vibro-acoustic analyses of vehicles and rotating machinery. Apart from the above, the applicants will apply the proposed tool for dynamic response analyses of micro-structures.