In this work, the shape of base structure is modified to improve its dynamic characteristics such as natural frequencies via surface-grooving technique. Grooving shape is formed by merging the neighboring small embossed elements after analyzing frequency increment sensitivities of all the surrounding ...
Define Natural frequencies. Natural frequencies synonyms, Natural frequencies pronunciation, Natural frequencies translation, English dictionary definition of Natural frequencies. n physics the frequency at which a system vibrates when set in free vibrat
aThe most important common features of such systems are a shift in the natural frequency of the structure to a lower value, and an increase in structural damping. 最重要的共同的特点的这样系统是转移在结构的固有频率中到更加低值的和在结构阻止的增量。[translate]...
Maximization of structural natural frequency with optimal support layout The optimal layout of supports is one of key factors that dominate static and dynamic performances of the structure. In this work, supports are considered ... J Zhu,W Zhang - 《Structural & Multidisciplinary Optimization》 被引...
Harmonicsofthesenormalforceswillresonatethenaturalfrequencyresonantmodesof thestatorstructuresoproducingacousticnoise. 这些简正力量泛音将共鸣定子结构的自然频率共振方式如此导致音响噪声。 bbs.jysq.net 8. Aspreviouslymentioned,thenaturalfrequencyofvibrationofatightcabledependson thetensionpresentinthecable. ...
a浅议幼儿园主题环境的创设 Discusses the kindergarten subject environment shallowly the establishment[translate] a5dBを超えた。 It exceeded 5dB.[translate] aobsession. 成见。[translate] a引起结构固有频率的降低 Causes structure natural frequency depression[translate]...
structure to the change of main cable-parameters such as cross-sectional areas,the positions of cables,declining angles,and tensions of cables is studied.The rules given in this paper will give a reference value on effects of the main cable-parameters upon the natural frequency of a cable-...
PURPOSE:To detect a reliable natural vibration frequency automatically regardless of whether or not a measuring person has technical knowledge and is experienced by inputting a transfer function, a phase, and a coherence function from a fast Fourier transforming device automatically. CONSTITUTION:An opti...
apequeno 小 [translate] a当所受动载荷的频率与壳体结构的某一固有频率接近时,可能引起结构共振,从而产生很高的动应力,造成强度破坏或产生不允许的大变形,严重影响了行车安全性。 When passive load frequency and shell structure some natural frequency close, possibly causes structure resonating, thus has the ...
The graph shows that as mandible size increases so does the likelihood of predation. The curve is the fitted frequency from the GLM with dot size representing numbers (1–6) of individualG. cornutus(i.e., larger dots = more beetles). Inset shows anA. venatorabout to attack a maleG. cor...