运营充水状态高密度聚乙烯管的爆破振动响应特性

张玉琦,蒋楠,贾永胜,周传波,罗学东,吴廷尧

Blasting vibration characteristics of high-density polyethylene pipes in operation water-filled state

Yu-qi ZHANG,Nan JIANG,Yong-sheng JIA,Chuan-bo ZHOU,Xue-dong LUO,Ting-yao WU

表 6 5种数值模拟工况下危险截面振动速度与主频

Tab.6 Vibration velocity and main frequency of dangerous section in five kinds of numerical simulation working conditions

H/cm vX /(cm·s−1) fX/Hz vY /(cm·s−1) fY /Hz vZ /(cm·s−1) fZ /Hz vR /(cm·s−1) 0 18.35 72 6.03 31 2.21 37 19.44 20 17.33 61 6.91 45 3.02 58 18.90 40 15.83 52 8.52 68 3.41 69 18.30 60 14.37 38 9.41 87 3.99 82 17.63 80 12.21 26 10.21 103 4.33 99 16.49