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1)  vibration level difference
振级落差
1.
Optimization design of the gearbox mounting under vibration level difference constraints;
考虑振级落差要求的齿轮箱基座优化设计
2.
Two kinds of structural optimization formulations minimizing the weight of the mounting with vibration level difference constraints are established: 1) topology optimization of the bottom of the mounting;2) combination of free-size optimization of ribs and topology optimization of the bottom of the mounting.
在满足指定振级落差设计要求下,进行底座和腹板材料拓扑布局动力学优化,减轻基座的重量。
3.
Through the computations on finite element power flow level difference and vibration level difference for the combined structure,the merits of these two kinds of evaluation methods are compared.
通过对板梁组合结构有限元功率流落差与振级落差计算,研究两种评价方法的优缺点。
2)  vibration level difference
隔振量(振级落差)
3)  acceleration-vibration level difference
加速度振级落差
1.
The acceleration-vibration level difference model was theoretically deduced and analyzed with four pole parameters method and then the vibration isolating effect of magneto-rheological(MR) mount with acceleration-vibration lever difference,which was measurable and easy to operate,was evaluated by the test.
在采用四端参数法对加速度振级落差模型进行理论推导及分析的基础上,提出了以可测量、易操作的加速度振级落差对悬置系统的隔振效果进行试验评估。
4)  layer difference
层级落差
1.
The phenomenon of layer difference appears among the contemporary college students thoughts and understanding.
当代大学生的思想认知呈现出明显的“层级落差”现象。
5)  shake off
振落
6)  elevation difference
落差
1.
The study results showed that the effect of density on laminar bottom in elevation difference pipeline is distinct and can not been ignored.
研究结果表明:密度对大落差管道顺序输送过程中层流底层的影响,比较明显,不可忽略。
2.
An intermixing model of elevation difference batching transportation is established.
结果表明,密度对大落差管道顺序输送过程中层流底层的影响比较明显,不可忽略。
补充资料:点振子振动和点电极振子振动
分子式:
CAS号:

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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