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1)  Vibration destroy
振动灾害
2)  seismic hazard
地振灾害
3)  dynamic disaster
动力灾害
1.
Noise processing method for underground dynamic disaster with sound transmitting monitoring and measuring;
声发射监测井下动力灾害的噪声处理方法
2.
Frequent and violent underground pressure behavior and dynamic disaster made roadways deform and damage instantaneously in full-mechanized caving mining face with horizontal sections in steeply inclined and extremely thick coal seam.
针对急倾斜特厚煤层水平分段综放工作面回采巷道频繁出现强烈矿压显现和动力灾害造成巷道瞬间变形破坏现象,通过现场测试和理论分析研究动力灾害发生机理,采取综合防治措施,很好地解决了动力灾害问题,促进了矿井安全生产。
4)  dynamic catastrophe
动力灾害
1.
The brief analysis about mine dynamic catastrophe in Jiaoping mining area of Tongchuan;
铜川焦坪矿区矿井动力灾害浅析
5)  mining hazards
采动灾害
1.
Based on different mining hazards, safety monitoring systems, which isused to evaluate the safety status of the mine, is established, and the correspondingcontrol measures are put forward.
矿山采动灾害是指由于人类采矿生产活动而引发的一种破坏地质环境、危及生命财产安全,并带来重大经济损失的矿区灾害。
6)  vibration damage
震动灾害
1.
the ground vibration caused by blast, on the surrounding environment and the constructions, and the blast vibration damage has become an important problem of environmental protection in economic development, so researchers of many countries have made hardly unremitting investigation and exploration to it.
特别是爆破震动灾害控制研究所面临的形势仍很严峻,许多问题亟待解决和完善。
补充资料:点振子振动和点电极振子振动
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性质:又称点振子振动和点电极振子振动。振动能量绝大部分集中在点电极范围内,形成“能量封闭”的振动模式。振子电极面远小于压电陶瓷片的总面积,且与厚度有适宜的匹配关系。在交变电场作用下,沿厚度方向产生振动,其振幅随着至电极中心距离的增加,呈指数式衰减。谐振频率与压电陶瓷片的厚度有关。为提高频率通常将压电陶瓷片磨得很薄,有时考虑到压电陶瓷自身强度太低,可用特制的陶瓷片作垫片来防止压电陶瓷片损坏。常用于高频场合。

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