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Miao-Miao Li, Liang-Liang Ma, Chuan-Guo Wu and Ru-Peng Zhu
Smart Spring is a kind of active vibration control device based on piezoelectric material, which can effectively suppress the vibration of the shaft system in an over-critical state, and the selection of control strategy has great influence on the vibrat...
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Marcelo Rodrigo Carreira, Pedro Gutemberg de Alcântara Segundinho, Francisco Antonio Rocco Lahr, Antônio Alves Dias, Carlito Calil Júnior
Pág. 27 - 32
The grading of structural lumber besides contributing for increasing the structure's safety, due to the reduction of the material variability, also allows its rational use. Due to the good correlation between strength and bending stiffness, the latter ha...
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Ricardo Faustino Teles,Cláudio Henrique Soares Del Menezzi,Frederico de Souza,Mário Rabelo de Souza
Pág. DOI: 10.12 - 6830.v02n0
The paper aimed at evaluating the interrelationship between three nondestructive methods to predict the stiffness of a tropical hardwood (Sextonia rubra). Lumber material from Sextonia rubra was collected, ripped and planned and boards were then nondestr...
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Vu Nam Pham, Dinh Kien Nguyen, Buntara Sthenly Gan
Pág. 152 - 164
Free and forced vibration analysis of two-directional functionally graded sandwich (2D-FGSW) beams using a shear deformable finite element formulation is presented. The beams considered in this paper consists of three layers, a homogeneous ceramic core, ...
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Divino Eterno Teixeira
Modulus of elasticity (MOE) of Douglas-fir (Pseudotsuga menziesii) lumber loaded in parallel to grain tension was evaluated by nondestructive techniques (transverse vibration and longitudinal stress wave) and the results were correlated to the actual pro...
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Huixuan Han, Yishuo Guo and Ruili Huo
The free transverse vibration of a surface-piercing, vertical cylinder partially submerged in water was studied. The cylinder had an arbitrary non-circular, but symmetric, cross-section in the vibration direction. The water was assumed to be an incompres...
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