نتایج جستجو برای: three dimensional free vibration

تعداد نتایج: 2008564  

Journal: :Mathematics 2023

This paper presents a novel quasi-three-dimensional shear deformation theory called the spectral displacement formulation (SDF) for analyzing free vibration of functionally graded plates. The SDF expresses unknown field as unique form Chebyshev series in thickness direction. By increasing truncation number series, bending analysis results can approach three-dimensional elasticity solution and s...

Based on the differential transformation method, a semi-analytical solution is developed for free vibration and modal stress analyses of variable thickness two-directional functionally graded circular plates with restrained edges, resting on elastic foundations. Variations of the material and geometry parameters are monitored by five distinct exponential functions. The presented non-dimensional...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1979
S H Lin T R Hays H Eyring

The purpose of the present communication has been to present the derivation of the vibrational relaxation rate constant for the case in which both phonons and the molecular rotation (three-dimensional) participate in the vibrational relaxation and to study the effect of molecular rotation on the vibration-vibration energy transfer in the condensed phase. The experimental results of vibration-vi...

Journal: :Materials research express 2023

Abstract The first-order shear deformation theory (FSDT) was used to explore the natural frequency response of functionally graded piezoelectric plates subjected static electrical and mechanical strain in this present study. A monomorph model for a plate with material properties that change according sigmoid law respect thickness has been considered. three-dimensional finite element free tetrah...

Journal: :Molecules 2017
Assi Al Mousawi Patxi Garra Frédéric Dumur Thanh-Tuan Bui Fabrice Goubard Joumana Toufaily Tayssir Hamieh Bernadette Graff Didier Gigmes Jean Pierre Fouassier Jacques Lalevée

Radical chemistry is a very convenient way to produce polymer materials. Here, an application of a particular photoinduced radical chemistry is illustrated. Seven new carbazole derivatives Cd1-Cd7 are incorporated and proposed as high performance near-UV photoinitiators for both the free radical polymerization (FRP) of (meth)acrylates and the cationic polymerization (CP) of epoxides utilizing L...

2018
Zhenfei Huang Wenhao Song Yaoshen Zhang Qiang Zhang Dongsheng Zhou Xi Zhou Yu He

Conventional education results in unsatisfactory morphological understanding of acetabular fractures due to lack of three-dimensional (3D) details and tactile feedback of real fractures. Virtual reality (VR) and 3D printing (3DP) techniques are widely applied in teaching. The purpose of this study was to identify the effect of physical model (PM), VR and 3DP models in education of morphological...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید