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- Natural mode shapes 固有振型
- natural mode shape 固有振荡频率
- Keywords: micro-gyroscope, silicon single crystal, three-axis angular-rate sensing, natural frequency and mode shapes. 关键词:微型陀螺仪、矽单晶、三轴角速率感测、振动自然频率与模态。
- This paper uses experimental modal analysis method to test the intrinsic characteristic of a new designed united real axle final drive and gain its natural frequencies,mode shapes . 应用试验模态分析方法对某新开发的农用运输车联体后桥进行了模态试验,得到其固有频率、模态振型等模态参数。
- Through the finite element modal analyzing by ANSYS software, the natural frequencies and mode shapes of the unbonded prestressed simple concrete beam in different prestress levels are gotten. 论文采用有限元分析软件ANSYS对预应力混凝土简支梁进行了动力分析,得到了不同预应力作用下梁的自振频率及试验难于测得的模态振型。
- Subspace iteration method was adopted to calculate natural frequencies, accumulative total contributing ratio of mode shapes and vibration characteristics of HSLC continuous rigid-frame bridge. 采用子空间迭代法,量化计算分析了高强轻集料混凝土连续刚构桥的自振频率、累积振型贡献率和振型特点等。
- Mechanical model of the drill carriage with rotation and vibrating hammer for the new type taphole drill is established.The natural frequencies and mode shapes of the model are calculated. 建立了新型开铁口机电动钻冲机构的力学模型,计算了它的固有频率和主振型。
- Our results show that FSI affects the system modal frequencies seriously, but mode shapes slightly. 结果表明,流固耦合作用对系统模态频率的影响较大,对系统模态振型的影响较小。
- Secondly, it establishes the dynamic model of the aerostatic bearing-spindle system, using the finite element method to obtain the natural frequency and mode shape. 其次,建立气体静压轴承-主轴系统动力学模型,以有限元素法求解其自然频率、振型。
- Garvey S D, Penny JET, Friswell M I, et al.Quantifying the correlation between measured and computed mode shapes. 曹其英.;结构数学模型相关分析理论及方法研究:[博士学位论文]
- According to Davenport wind spectral,the filter of geaerlized fiuctuating wind forces for the mode shapes is established. 以Davenport风谱为标准,建立了相应于各振型的广义脉动风力成型虑波器。
- It is an effective way that reduced-order models of MEMS devices are established based on linear orthogonal mode shapes. 论述了微机电系统(MEMS)器件缩减模型的建立是进行MEMS系统级模拟的关键。
- It is desired to change the mode shapes of the diaphragm by the deposition of DLC films and hence improve the response of the earphone. 希望经由镀上类钻膜改变耳机振膜的振动响应,进而藉由不同的镀膜形式改良耳机的性能。
- The natural frequency and the natural mode of vibrating screen have been calculated by the software for FEM, proposes the theoretical basis for the design of large-sized vibrating screen. 通过有限元软件计算出了筛体结构的固有频率、固有振型,为振动筛的大型化设计提供了理论依据。
- Made a modal analysis of the reductor box with FEM and found its natural frequency and natural modes,evaluated the result at the same time. 对减速箱箱体进行了有限元模态分析,获得了箱体结构的固有频率和固有振型,并给出分析评价。
- The strength, stiffness and mode shape of the rear axle housing was calculated via finite elemant methool (FEM). 根据计算结果分析,指出了其结构存在的缺点,提出了改进方案。
- However, an exact relation between the normal mode shape and the complex FRF does exist. 然而,正规振型与复频响函数间的确存在一正确的关系。
- Natural frequencies and natural modes are determined by the null-field integral formulation in conjunction with degenerate kernels, tensor rotation and Fourier series. 藉由零场积分方程、退化核、张量旋转与傅立叶级数求解自然频率与振模。
- It shows through theory and computor simulation that the changes of some frequencies and mode shapes caused by beam damage are not evident, the changes of curvature mode shapes are obvious. 仿真结果表明,破损对某些阶频率、振型的影响不大,对振型曲率的影响较大.用振型曲率监测简支梁的破损优于用频率或振型的监测方法。
- In the first step, the large modification problem is transferred to a small one by using a mass distribution weighing function, which copes with the inaccurately given mode shapes. 在第一步设计过程中,通过将参考振型作为节点质量配置的位置加权函数,有效地将大修改问题转化为小修改问题。
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