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首页> 外文会议>IMAC-XXI: a conference amp; exposition on structural dynamics >WIRELESS SENSORS APPLIED TO MODAL ANALYSIS
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WIRELESS SENSORS APPLIED TO MODAL ANALYSIS

机译：无线传感器应用于模态分析

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摘要

Modal analysis has become a widely applied toolrnfor understanding complex energy concentrationsrnand dispersions in materials and structures. Thernpurposes of modal analysis include but are notrnlimited to designs for noise suppression,rndiagnosis of dynamic vehicle performance,rnmeasurement of structural responses tornpotentially destructive excitations (impulses),rnstress analysis for system components, andrnstructural health and prognostic measurements.rnRequirements for large numbers of sensors,rnlimits on the mass of the sensors so as not torn"load" or "damp" the test article, and support andrnsecurity of the interconnecting wires which, if notrnsecured, will add "noise" modes to the test article.rnMost existing sensors must be connected tornpower and signal by wire. Much effort isrnexpended dealing with the limitations of wire.rnThe purpose of this paper is to examine thernpotential for wireless sensor and data acquisitionrnmethods to mitigate some of the inherentrnproblems associated with experimental modalrnanalysis as it is currently performed with "hardrnwire" technology. Approaches to wirelessrnhardware and software are suggested that couldrnparallel calculations and thus reduce calculationrntime and improve data quality by elimination ofrninterconnecting wires.
机译：模态分析已成为理解材料和结构中复杂的能量集中和分散的广泛应用的工具。模态分析的目的包括但不限于噪声抑制设计，动态车辆性能诊断，对潜在破坏性激励（冲量）的结构响应的测量，系统组件的应力分析，结构健康和预后的测量.rn大量传感器的要求，限制传感器的质量，以免撕裂测试物品“负载”或“使之受潮”，以及对互连线的支撑和安全性，如果不加以保护，则会在测试物品上增加“噪声”模式。通过电线连接破损电源和信号。为了解决有线的局限性，人们花费了很多精力。本文的目的是研究无线传感器和数据采集方法的潜力，以减轻当前与“模态分析”技术相关的一些固有的问题。提出了可以并行计算的无线硬件和软件方法，从而通过消除互连线来减少计算时间并提高数据质量。

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