The ground vertical vibration responses under excitations of the subgrade reactions under the ballast blocks spreading one by one are calculated by an explicit finite element method.
采用时、空解耦的显式波动有限元方法,计算了顺序展开的每个道床块下地基反力点振源列阵激励下的地表的竖向振动。
参考来源 - 城轨交通引起的环境振动研究及轨道谱参数虚拟反演The test results show the control target-vertical vibration acceleration of quality-on-spring RMS had been decreased. the conclusion could be drew that Fuzzy-PID control tactic took on an excellent control effect.
试验结果表明:施加控制的空气悬架的簧载质量垂直振动加速度均方根值确实降低明显,所以此控制策略在试验台上也具有较好的控制效果。
参考来源 - 电控空气悬架系统的FuzzyUsing the program, vertical vibration properties of block on homogeneous foundation, stratified foundation and composite foundation with single column are studied.
利用此程序分析了均质地基、成层地基和单桩复合地基上块体的竖向振动特性。
参考来源 - 复合地基动力特性及其应用研究To realize the on-line monitoring vertical vibration of working rollers in rolling mills, several questions have been studied in detail in this paper, as follows: vibration monitoring method, sensor system, noise reduction and anti-interference etc.1 .
本文以实现轧机工作辊垂直振动在线监测为主线,就振动监测方法、传感器、去噪抗干扰等问题进行了较为详细的研究。
参考来源 - 轧机工作辊振动在线监测方法与系统研究·2,447,543篇论文数据,部分数据来源于NoteExpress
The calculated vertical vibration frequency is closed to test result.
经计算后得到的垂向固有频率与测试结果相近。
The structure and work theories of vertical vibration conveyer are introduced.
介绍了立式振动输送机的结构及工作原理。
What is relevant to indexes is the vertical vibration of the plate and strip rolling mill.
而与这些指标直接相关的是轧机机座垂直方向的振动。
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