内容提示: Normal modes of vibration A non-linear polyatomic molecule has 3N-6 normal modes of vibration. In the harmonic approximation we can write the wave function for a given vibrational state as a product wavefunction: Ψv1v2v3v3N-6vib=ψv1(Q1)ψv2(Q2)ψv3(Q3)ψv3n−6(Q3...
Journal of Sound and Vibration, 1994, 163(3): 319―347.Shaw, S. and Pierre, C., "Normal modes of vibration for non-linear continuous systems," Journal of Sound and Vibration, Vol. 169(3), 1994, pp. 319-347.Shaw, S. W. and Pierre, C., "Normal modes of vibration for non-...
采用密度泛函理论中的广义梯度近似方法,对M13(M=Fe,Ti)以及M13内掺Au20团簇的几何结构和磁性进行了计算研究.结果表明:M13和M13内掺Au20团簇的几何结构在0.006—0.05 nm误差范围内保持着Ih对称性.Fe13团簇最低能态的总磁矩为44 μB,内掺到Au20笼中后形成的Fe13内掺Au20团簇的最低能态总磁矩为38 μB,且Au...
normal modes of vibrationRaman spectroscopyA normal coordinate treatment was performed on the C7C5 conformation using a modified Urey-Bradley force field refined from previous studies on β-turns. The predicted frequencies were compared with the experimental ones obtained on the peptide hormone ...
A method based on the invariant manifold approach to normal modes is generalized for obtaining normal modes of vibrations for rotors with slowly varying parameters and the dynamics of modes is analysed in this paper. A rotor with slow time variable mass with cubic non-linearities is given...
L.Cveticanin.Normal mode of vibration for continuous rotors with slow time variable mass. Mechanism and Machine Theory . 1997Cveticanin L . Normal modes of vibration for continuous rotors wit h slow time variable mass. Mech Mach Theor y ,1997 ,32 (7) :881～891...
1)normal vibration简正振动 1.Then the paper used the projection operator to structure the normal coordinate component,thus combined 15 normal vibration patterns of propadiene molecule.先对丙二烯振动模式进行分类及构造投影算符,再用投影算符构造简正坐标分量,从而组合出丙二烯分子的15个简正振动模式。 2....
摘要: A new method is described for classification of normal modes of vibration of molecules which takes into account the distribution of both potential and kinetic energy. Different classification methods are compared for several molecules.关键词: Normal modes ...
normal mode of vibration Normal Mode Path Integral Monte Carlo Normal modes Normal modes Normal Molecular Mass Intestinal Alkaline Phosphatase Normal Monkey Kidney Normal Mouse Mammary Gland Normal Mouse Peritoneal Exudate Cells Normal Mouse Red Blood Cells Normal Mouse Serum Normal Moveout Normal Moveout...
Nonlinear normal modes (NNMs) are a generalization of the linear normal vibrations. By the Kauderer-Rosenberg concept in the regime of the NNM all position coordinates are single-values functions of some selected position coordinate. By the Shaw-Pierre concept, the NNM is such a regime when al...