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首页> 外文会议>3rd International Workshop on Structural Health Monitoring, Sep 12-14, 2001, Stanford University >Structural Vibration Monitoring for Damped Repair Design
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Structural Vibration Monitoring for Damped Repair Design

机译：阻尼维修设计的结构振动监测

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Repair of secondary structure can be accomplished by restoring structural integrity at the damaged area and increasing the structure's damping in the repair region. Increased damping leads to a reduction in resonant response and a repair that will survive for the life of the aircraft. In order to design a repair with effective damping properties, the in-service structural strains and temperatures must be monitored and recorded. A rugged, small and lightweight data acquisition unit called the Damage Dosimeter has been developed to accomplish this task with minimal impact to the aircraft system. Running autonomously off of battery power, the Damage Dosimeter measures three channels of high cycle strain and a single channel of temperature. It merges the functionality of both analog signal conditioning and a digital single board computer on one 3.5 by 5.0 inch card. This paper will present the motivation behind the development of the Damage Dosimeter along with an overview of its functional capabilities and design. In-service flight data and analysis results will be discussed for two applications. The paper will also describe how the Damage Dosimeter is used to facilitate the Durability Patch design process.
机译：二级结构的修复可以通过恢复受损区域的结构完整性并增加修复区域的结构阻尼来实现。增加的阻尼会导致共振响应降低，并在飞机的使用寿命内进行维修。为了设计具有有效阻尼特性的维修，必须监控并记录使用中的结构应变和温度。已经开发了一种坚固，小型，轻巧的数据采集单元，称为“损伤剂量计”，可以在不影响飞机系统的情况下完成此任务。损坏剂量计自动依靠电池电源运行，可测量三个高循环应变通道和一个温度通道。它在一个3.5 x 5.0英寸卡上合并了模拟信号调节和数字单板计算机的功能。本文将介绍损坏剂量计发展背后的动机，并概述其功能和设计。将针对两种应用讨论在役飞行数据和分析结果。本文还将介绍如何使用损伤剂量计来促进耐用性补丁设计过程。

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