扭轉周期 的英文怎麼說
中文拼音 [niǔzhuǎnzhōuqī]
扭轉周期
英文
torsion period-
The stiff floor structure has bigger displacement and smaller internal forces. under seismic forces, frame with eiastic fioor has bigger vibration period, and takes on complicated modes of vibration. due to the big vertical rotation, structure with elastic floor shows more prominently coupling vibration of bending rotating and twisting
如，彈性樓板的結構位移比剛性樓板結構的位移大，內力也是彈性樓板結構的大；在地震力作用下，考慮彈性樓板變形的空間框架振動周期比剛性樓板框架長，而且其振型表現得也比較復雜，由於豎向扭轉位移較大，彈性樓板結構表現出更明顯的彎扭耦聯振動。The period of these torsional oscillations depended on the rotational inertia of the helium ; the oscillations occurred more rapidly when the inertia went down, just as if the mass of the helium decreased
這種扭轉振?的周期取決于氦的轉動慣量，轉動慣量減少時振?加快，看起來好像是氦的質量減少了。In order to prove the existence of the periodic boucing solutions, firstly we will introduce a new coordinate transformation, transform the system from right half plane to the whole plane. and give the relation of the eigenvalues of hill ' s equation and the rotation numbers, using this approach and pioncar - birkhoff twist theorem, we proved the existence of the periodic bouncing solutions for asymptotical linear oscillator
對于周期解的存在性證明，我們引進新的坐標變換把右半平面上的碰撞問題轉化到整個平面上，給出旋轉數與hill方程的特徵值的關系，並以此來度量漸近線性振子，再應用pioncar - birkhoff扭轉定理得到周期碰撞解的存在性。The stiffness of the former is less than the latter, and the natural periods of the former is longer than the latter
前者模型的剛度較後者柔，其周期較後者長。且樓板模型的選取對結構的扭轉影響較大。3 、 based on the model, a quasi - static meshing simulation is carried out in a meshing period. the numerical results which indicating the variety of the contact status, the contact stress, the bending stress in the location of teeth root and the torque and rotary speed of gear pair vs. the different meshing position are presented, and the rationality of the model is be verified
3 、基於所建有限元分析模型，在一個嚙合周期內，對齒輪副進行準靜態嚙合模擬分析，給出了準靜態嚙合時齒輪的接觸狀態、接觸應力、齒根彎曲應力及主從動齒輪的扭矩和轉速隨嚙合位置變化的規律，驗證了所建模型的正確性。A project has been brought forward, which focuses on the combination of an oscillation equipment with double steel - rob and the photoelectric technology on non - contact measuring. with collective precision being analyzed, the paper also points out how to bring it into effect. secondly, the design of mechanism, hardware and software of photoelectric measuring system with a core of at89c51 single chip microcomputer is accomplished
首先進行了不規則外形剛體轉動慣量測量的理論探索，找出了剛體轉動慣量與振動固有周期的關系，提出了以雙鋼柱扭擺機構，結合光電非接觸檢測技術測量航彈極轉動慣量的方案，並進行了總體精度分析，提出實施手段；其次，完成了航彈極轉動慣量測量系統的機械設計、以at89c51單片機為核心的光電檢測系統的硬體及軟體的設計；最後，給出了實驗數據分析及結論。分享友人