特高压输电塔双向动态监测传感器的优化布置

结合三维动态测点优化布置的有效独立法(EFI3)和改进的一维有效独立法,提出同时考虑双向测点优化布置的有效独立法(EFI2)。采用二维空间相互正交方向的节点振型作为输入,根据模态振型最大线性无关性和较大能量分布原则,EFI2法将同时优化双向的测点布置。以某大跨越特高压输电塔为工程背景,运用EFI2法优化其顺导线和横导线向加速度测点布置,并选用两种评估标准分析测点布置的优化效果。结果表明:对同时考虑空间二维振动的大跨越特高压输电塔结构,EFI2法能得到较为理想的测点布置方案。

Optimal placement of bidirectional sensor for extra high voltage transmission towers

Combined the optimal placement method of triaxial accelerometers based upon the effective independence algorithm(EFI3)and the improved one-dimensional effective independence algorithm,the optimal placement method of bidirectional accelerometers for the tower(EFI2)is proposed.The modal matrix on x-direction and y-direction are used as input instead of the uniaxial data.And according to the most linear independence and greater energy distribution of modal shape,EFI2 can optimize the sensor placement of accele...