物探与化探2016，Vol.40Issue(1)：93-99,7.DOI:10.11720/wtyht.2016.1.17
航空物探飞机典型飞行状态下振动特性研究
A study of vibrational characteristics of the airborne geophysics aircraft under typical flight conditions
摘要
Abstract
Aircraft vibration has an effect on airborne gravity and gravity gradient measuring system.In order to have a full understand-ing of aircraft vibrational characteristics and provide some advices and references for instrument system ranges and physical design,the authors carried out a large amount of measurement and depth analysis of vibration characteristics of Y-12 and Cessna 208 aircraft.The results show that the vibration of aircraft floor is mainly caused by the engine,the propellers speed shows regular multiple frequency dis-tribution in vibration energy,and its fundamental frequency of multiple frequency is expressed as fundamental frequency of propellers speed multiplied by the propeller vane.The vibration of the aircraft under flight conditions is the typical periodic vibration signal.关键词
航空物探/振动特征/固定翼飞机/频谱分析Key words
airborne geophysics/vibration characteristics/fix wing aircraft/spectrum analysis分类
天文与地球科学引用本文复制引用
高维,舒晴,屈进红,周坚鑫,乔阳,尹航..航空物探飞机典型飞行状态下振动特性研究[J].物探与化探,2016,40(1):93-99,7.基金项目
国家高技术研究发展计划("863"计划)项目(2011AA060501) （"863"计划）
