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- natural mode shape 固有振荡频率
- 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。
- Natural mode shapes 固有振型
- 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。
- 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。
- 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。
- The stochastic seismic response characteristics of the inequable loess stratum were analyzed by using the mode shape decomposed method. 算例结果表明,非均匀黄土地层的地震反应具有明显的放大作用。
- The advantage of ESPI for vibration measurement is that we can obtain the resonant frequency and the correspondent mode shape at the same time. 利用光学的电子斑点干涉术做为物体振动量测之特点,在于获得振频的同时,亦可得到其对应之振型的全场图。
- The feasibility and effectiveness of the extended pseudo mode shape method are justified by using a solid-modeled shaft and bladed disk as example. 本文利用三维实体元素之转轴与叶片轮模型验证模态仿形法应用叶片轮凝缩建模之可行性。
- 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。
- The physical interpretation of P11 and PVDF mode shape functions are characterized respectively.The FRFs between the PZT actuators and PVDF sensors are experimentally measured. 以模态分析之理论基础推导对于压电材料梁系统之传统模态形式的频率响应函数,并分别验证得到压电片和压电薄膜模态振型之物理意义。
- This paper gives a theoretical formulation for the extraction of mode shape by fitting the cross power spectra of the outputs and a cantilever beam is analysed. 该文提出了一种用互功率谱求振型的方法,并对此理论进行了详细推导,以一悬臂梁为例对该方法进行了试验验证。
- 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。
- 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。
- 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。
- 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。
- fundamental natural mode of vibration 振动的基本固有振动模
- It is natural for a cat to catch mice. 猫捉老鼠是本能。