Natural frequency - Wikipedia
网页Natural frequency, measured in terms of eigenfrequency, is the rate at which an oscillatory system tends to oscillate in the absence of disturbance. A foundational example pertains to simple harmonic oscillators, such as an idealized spring with no energy loss wherein the system exhibits constant-amplitude oscillations with a constant frequency.
What is the Eigenfrequency mean in vibration? - Physics Forums
网页2009年1月22日 · Eigenfrequency, also known as natural frequency, is the frequency at which an object or system naturally vibrates without any external forces acting on it. It is determined by the physical properties and geometry of the object or system.
自然頻率 - 维基百科，自由的百科全书
网页自然頻率 （natural frequency），又稱 特徵頻率[1] （eigenfrequency），是指一個系統在沒有外力或是 阻尼 的情形下，會傾向於 振盪 的 頻率 [2]。 概述. 當一個彈性體受激發產生自由振動，便被稱為 自然振動，且往往傾向於一個或一組特定的 自然頻率。 自然振動與受外力帶領的強制振動 (forced vibration)不同，後者會跟隨外力所給予的激振頻率 (forced frequency)。 若是激振頻率接近、甚至恰等於自然頻率時，振幅將會增長許多倍，這個 …
Eigenfrequency Analysis - COMSOL
网页2018年4月19日 · Eigenfrequencies or natural frequencies are certain discrete frequencies at which a system is prone to vibrate. Natural frequencies appear in many types of systems, for example, as standing waves in a musical instrument or in an electrical RLC circuit. Here, we mainly describe the study of eigenfrequencies in mechanical structures, but many of ...
自然频率 - 维基百科，自由的百科全书
网页2024年7月4日 · 自然频率 （natural frequency），又称 特征频率[1] （eigenfrequency），是指一个系统在没有外力或是 阻尼 的情形下，会倾向于 振荡 的 频率 [2]。.
什么是本征频率（eigenfrequency） - 百度知道
网页2008年12月4日 · 在周期性外力的作用下，被作用物体产生周期性运动，或称振动，当外力的频率接近某一特定值的时候，振动的幅度达到最大，这一频率称为本征频率，或特征频率，固有频率。. 只要把一个波形作傅立叶分解就行了。. 就是把波形分解成一系列时间的三角函数 ...
Eigenfrequencies - an overview | ScienceDirect Topics
网页The eigenfrequency (or natural frequency) (fn) is the number of cycles of a freely vibrating system over unit time. From: Mechanics of Civil Engineering Structures, 2021
Eigenfrequency Analysis - COMSOL Multiphysics
网页An eigenfrequency study solves for the eigenfrequencies (natural frequencies) and the shapes of the corresponding eigenmodes. When performing an eigenfrequency analysis, you can specify whether to look at the mathematically more fundamental eigenvalue, λ, or the eigenfrequency, f, which is more commonly used in a structural mechanics context.
Eigenfrequency - COMSOL Multiphysics
网页The Eigenfrequency study and study step are used to compute eigenmodes and eigenfrequencies of a linear or linearized model. For example, in electromagnetics, the eigenfrequencies correspond to the resonant frequencies and the eigenmodes correspond to the normalized electromagnetic field at the eigenfrequencies.
A note on eigenfrequency sensitivities and structural eigenfrequency …
网页2013年11月1日 · A review on eigenfrequency optimization is presented by Grandhi and the book by Haftka et al. includes from page 228 sensitivity of discrete systems with sensitivities for eigenvalues as well as for eigenmodes. The present analysis put focus on the possibility for localized results with simple physical interpretation.
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