Results 41 to 50 of about 7,427 (100)

Power secant method applied to natural frequency extraction of Timoshenko beam structures

Latin American Journal of Solids and Structures
This work deals with an improved plane frame formulation whose exact dynamic stiffness matrix (DSM) presents, uniquely, null determinant for the natural frequencies.
C.A.N. Dias
doaj   +1 more source

Dynamic Stiffness for a Levinson Beam Embedded Within a Pasternak Medium Subjected to Axial Load at Both Ends

Buildings
This work presents accurate values for the dynamic stiffness matrix coefficients of Levinson beams under axial loading embedded in a Winkler–Pasternak elastic foundation.
Zhijiang Chen, Qian Cheng, Xiaoqing Jin, Feodor M. Borodich   +3 more
doaj   +1 more source

Analysis of bending vibrations of a three-layered pre-twisted sandwich beam with an exact dynamic stiffness matrix

Composites Part C: Open Access
This paper presents the novel development of the dynamic stiffness matrix for a three-layered symmetric pre-twisted sandwich beam (PTSB), aiming to investigate its free vibration characteristics.
Marziyeh Baziyar Hamzehkhani, Abdolreza Zare, Mohammad Gholami, Mojtaba Gorji Azandariani   +3 more
doaj   +1 more source

Recent discoveries related to the use of the Wittrick-Williams algorithm to solve transcendental eigenproblems

F.W. Williams, A. Watson, W.P. Howson, D. Kennedy   +3 more
openaire   +2 more sources

High-temperature magnetic stability of small magnetite particles [PDF]

, 2003
The stability of magnetic domain structures of small grains of magnetite were examined between room temperature and the Curie temperature using a high-resolution three-dimensional micromagnetic algorithm.
Williams, W., Muxworthy, A.R., Dunlop, D.J., Williams, W.; id_orcid, Dunlop, D. J., Muxworthy, A. R.   +5 more
core   +1 more source

Research on thermal-deformation coupling vibration of flexible beams considering axial force

Hangkong gongcheng jinzhan
The beam-wire structure in aircraft can cause thermal deformation and vibration of flexible members during service due to alternating heat flux caused by solar thermal radiation.
WU Lei, HAN Fei, DENG Zichen
doaj   +1 more source

Critical buckling of delaminated composite plates using exact stiffness analysis

, 2011
The critical buckling of composite plates with through-the-length delaminations is studied using exact stiffness analysis and the Wittrick-Williams algorithm.
Mahdi Damghani, Kennedy, David, David Kennedy, Damghani, Mahdi, Featherston, Carol, Featherston, Carol Ann, Carol Featherston   +6 more
core   +1 more source

Global buckling of composite plates containing rectangular delaminations using exact stiffness analysis and smearing method

, 2014
The global buckling of a composite plate with a single rectangular delamination is studied using a smearing method and employing exact stiffness analysis and the Wittrick-Williams algorithm. Computational efficiency is achieved by avoiding discretisation
Kennedy, David, Damghani, Mahdi, Featherston, Carol   +2 more
core   +1 more source

The use of pseudo-inertia in asymptotic modelling of constraints in boundary value problems

, 2009
In recent publications, the validity of using positive and negative inertial penalty parameters and the advantage of this approach over the conventional positive penalty function approach have been established for linear eigenvalue problems.
Ilanko, Sinniah, Henderson, L.
core   +1 more source

Wave propagation along longitudinally periodically supported or stiffened prismatic plate assemblies

, 1995
A method is presented for computing propagation constants of longitudinal free wave propagation in a longitudinally prismatic plate assembly which is supported or transversely stiffened at longitudinally periodic intervals.
Kennedy, D., York, C.B., Ouyang, H.J., Williams, F.W.   +3 more
core   +1 more source