北疆大型水工平面闸门的振动测试  

Vibration tests on large-scale hydraulic gate of northern Xinjiang Uygur Autonomous Region

作　　者：韩璞[1] 薛惠芳[1,2] 何青[3] 

机构地区：[1]华北电力大学控制与计算机工程学院,北京102206 [2]南京工业大学机械与动力工程学院,江苏南京210009 [3]华北电力大学能源动力与机械工程学院,北京102206

出　　处：《河海大学学报（自然科学版）》2011年第3期332-337,共6页Journal of Hohai University(Natural Sciences)

基　　金：长江学者和创新团队发展计划(PCSIRT0720)

摘　　要：针对北疆某大型水利工程中倒虹吸出口2个平面闸门的振动问题,采用防水耐压防腐的三轴振动加速度传感器和INV303数据采集仪器,构成多通道水下振动测试系统,通过改变闸门的开度和流量,对A线1号闸门进行各运行工况下的振动监测,对B线2号闸门进行大流量下的振动监测.测试结果表明:2个闸门、闸墩、闸房等重要部位的振动参数与闸门开度、流量变化关系密切,闸门的微小振动长期持续存在,1号闸门的振动峰值对应的闸门开度为0.220 m和0.310 m,2号闸门大流量下的振动峰值对应闸门开度0.301 m,闸房座板的振幅最大;数据分析结果具有相当好的一致性,振动测试系统正确可行.With regard to the vibration of two exit gates of the inverted siphon of a large-scale hydraulic project in northern Xinjiang Uygur Autonomous Region,a multi-channel underwater vibration test system was established by using the triaxial accelerometer specialized in waterproof,compression and anti-corrosion and the INV303 data acquisition instrument.Through adjusting the gate openings and discharges,the vibrations of gate No.1 under various working conditions and of gate No.2 under large discharges were monitored.The test results indicate that the vibrations of the gates,pier and gate room have close relation with gate openings and discharges.The tiny vibrations of the gates exist for long term.The peak values of the vibration for gate No.1 correspond to the gate openings of 0.220m and 0.310m,and those for gate No.2 under large discharges correspond to the gate openings of 0.310m.The foundation plate has the largest amplitude of vibration.The analytic results are accordant,and the proposed vibration test system is correct and feasible.

关 键 词：振动测试 三轴加速度传感器 水工闸门 运行规范 

分 类 号：TV663[水利工程—水利水电工程] O329[理学—一般力学与力学基础]