固有频率也称为自然频率( natural frequency)。物体做自由振动时，其位移随时间按正弦或余弦规律变化，振动的频率与初始条件无关，而仅与系统的固有特性有关（如质量、形状、材质等），称为固有频率，其对应周期称为固有周期。对固有频率的研究有利于保证产品稳定性。
... natual spectral linewidth 固有谱线宽度 natural frequency 固有频率 natural leak 自然泄漏 ...
基于2个网页-相关网页
自然固有频率 natural inherent frequency
无阻尼固有频率 undampted natural frequency ; undamping natural fequency ; undamped natural frequency of a mechanical system
固有频率的测量 natural frequency measurement
固定基础固有频率 rixed-based natural frequency
液压固有频率 hydraulic natural frequency ; frequency of the natural hydraulic mode
阻尼系数和固有频率 Damp
转子支承系统固有频率 natural frequency of rotor ; natural frequency of rotor/bearing system
有阻尼的固有频率 damped natural frequency
基础固有频率 natural frequency of a foundation
Natural frequency of rotating blade is analyzed in theory. Blade vibration measuring experiment has been accomplished successfully on one type equipment.
对叶片振动固有频率进行了理论分析。
参考来源 - 旋转叶片固有频率测试技术的研究This conclusion corrects the point of view that the modal flexibility is more sensitive to damage than either natural frequencies or the mode shapes.
这一结论，纠正了通常认为模态柔度比固有频率和模态振型对损伤更敏感的片面观点。
参考来源 - 结构损伤识别及数值模拟The local modality of the main truss is analyzed by obtaining the inherent frequency and vibration model of the first several orders through calculation with MSC. NASTRAN software.
运用MSC.NASTRAN软件计算求得前几阶固有频率和振型, 分析出结构存在局部模态。
参考来源 - 空间太阳望远镜主桁架的模态分析与试验The relationship between natural frequency and structure parameters are acquired.
数值仿真得到了轨枕刚度和其它结构参数与固有频率的关系。
参考来源 - EMS型低速磁浮列车/轨道系统的动力相互作用问题研究If the vibration frequency was satisfied the need of preserve, the resonance and the bad vibration will be avoid.
如果局部结构振动的固有频率满足频率储备要求,则认为可避免共振现象的发生,不至于发生有害振动。
参考来源 - 船体板梁组合结构频率禁区动力优化研究Any mechanical system can vibrate under certain conditions. If the frequency of exciting force caused by external drive or self-unbalance is near the nature frequency of the system, a phenomenon named resonance vibration will occur.
任何机械系统都会发生振动，当外界激励或自身不平衡引起的激振力的频率与系统的固有频率接近时，就会发生共振。
参考来源 - G2500The modal analysis result on the whole structure shows that it is easily to generate resonance phenomenon when frequency activated by engine closes to the intrinsic frequency of the model during the normal idle running of the engine.
整体结构的模态分析结果显示:当发动机以自然怠速运转的时候,发动机的激励频率与模型的固有频率比较接近,容易引起共振。
参考来源 - XQ6125型城市客车有限元分析与试验研究The finite element analysis was applied to study load, deformation and stress distribution of new combined structure saw blade in working, to analyze its low model shape, inherent frequency, which influenced its application effect.
应用有限元理论研究新型组合结构圆锯片工作过程中的承载状况、变形情况以及应力分布状态,分析新型组合结构圆锯片的低阶模态振型、固有频率等动态性能对使用效果的影响。
参考来源 - 新型组合结构圆锯片基体创新设计关键技术研究In the fourth chapter, such structure's dynamic characteristic was analyzed briefly. And we conclude the inherent frequence formula of this structure by the energy method.
第四章简单讨论了这种结构的动力特性，用能量法推导出这种结构固有频率的简捷计算公式，为工程设计提供了一种较为方便的计算方法。
参考来源 - 薄壁箱体现浇砼空腹板楼盖结构的理论分析On the basis of the method. Professor Qi has got a new criterion for detecting the eigenfrequency by using the physical meanings of the matrix used in the congruent transformation of the dynamic stifmess matrix.
在此基础上,齐朝晖教授充分利用将结构动刚度矩阵合同变换过程中各矩阵的物理含义,提出了求解结构固有频率的新判据。
参考来源 - 结构固有频率及其振型的高效稳定算法·2,447,543篇论文数据，部分数据来源于NoteExpress
因为当啮合频率接近于齿轮系的固有频率时容易发生共振。
Because when the frequency of close to the meshing of gears susceptible to the natural resonance frequency.
结果说明：改变隔振元件的间距能调整扭转振动的固有频率的大小。
The results showed that the mount spacing can be varied to adjust the natural frequency of the rotational mode.
其接触系统的固有频率与响应振幅特性直接影响电磁继电器的接触可靠性。
Natural frequency and response vibration amplitude character of contact system will directly influence the reliability of EMR's mechanical contact.
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