The invention discloses a ship six-degree-of-freedom motion measurement method based on array accelerometers. Two accelerometers are arranged at each of a bow and a stern for measuring the vertical acceleration and transverse acceleration at the bow and the stern respectively; two accelerometers are symmetrically arranged on the left side and the right side of the middle of a ship and used for measuring vertical acceleration; and an accelerometer is arranged at the gravity center of the ship body and used for measuring the longitudinal acceleration. According to the invention, the six-degree-of-freedom motion of the ship can be measured by using the seven accelerometers; and compared with a traditional contact type mechanical airworthiness instrument or a non-contact type optical measuringinstrument, all the accelerometers are fixedly arranged in the ship body and move along with the ship body, and therefore an extra fixed platform or a shore base station does not need to serve as a reference datum. The method can be applied to ship model motion measurement in a pool laboratory, and can also be applied to ship motion attitude measurement in a real sea area environment.
本发明公开了一种基于阵列式加速度计的船舶六自由度运动测量方法,在船艏和船艉处各布置两个加速度计,分别用于测量船艏和船艉处的垂向加速度和横向加速度;在船中部左右两舷侧对称地布置两个加速度计,用于测量垂向加速度;在船体重心位置处布置一个加速度计,用于测量纵向加速度。本发明采用七个加速度计即可对船舶的六自由度运动进行测量,与传统的接触式机械适航仪或非接触式光学测量仪相比,本发明中所有的加速度计都固定布置在船体内部并跟随船体一起运动,因此不需要额外的固定平台或岸上基站作为参考基准。本发明既可应用于水池实验室中的船模运动测量,也可应用于实海域环境下的船舶运动姿态测量。
Ship six-degree-of-freedom motion measurement method based on array accelerometers
一种基于阵列式加速度计的船舶六自由度运动测量方法
2020-11-20
Patent
Elektronische Ressource
Chinesisch
IPC: | G01C Messen von Entfernungen, Höhen, Neigungen oder Richtungen , MEASURING DISTANCES, LEVELS OR BEARINGS / B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS / G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES , Prüfen der statischen oder dynamischen Massenverteilung rotierender Teile von Maschinen oder Konstruktionen |
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