摘要
根据输电塔结构所受自然风特性,采用达氏风速谱,在ANSYS中通过施加风速功率谱的方法进行输电塔结构的随机振动分析,得到输电塔的前32阶模态及风速谱施加后的各向位移、结构内力变化等情况,并将Y方向和Z方向动力计算结果与静力计算结果比较,得出两者基本吻合的结论。
According to the features of structural stytle of transmission tower, considering the correlation of the natural wind,the random vibrations analysis by using power spectral density of the wind speed on transmission tower can be presented in ANSYS. The situation was obtained of simulating state of preciding 32 periods on transmission tower, displacements on different direction, variation of construction internal force, etc, and the calculation results of dynamic force by comparson with statical force were coincident on Y and Z direction.
出处
《吉林电力》
2007年第2期16-18,共3页
Jilin Electric Power
关键词
风速功率谱
输电塔
ANSYS
power spectral density of wind speed
transmission tower
ANSYS
