Dynamics of rotationally periodic structures
WebRotationally periodic structures are used in many engineering applications such as turbine bladed disks or gear wheels. It is well known that the dynamics of such structures can be studied using the cyclic symmetry reduction. This method makes it possible to analyse the complete cyclic structure by considering a single elementary sector. WebDec 1, 2002 · On the other hand, the wheel is a typical rotating structure and usually designed into structure consisting of rotationally repetitive modules [11]. Moses et al. [12] studied the topological ...
Dynamics of rotationally periodic structures
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WebDYNAMICS OF ROTATIONALLY PER1OL)IC STRUCTURES 83 analysis of the structure, provided it is linearly elastic. Furthermore it is not confined to vibration, but can be used … WebJun 1, 2007 · Rotationally periodic structures are used in many engineering applications such as turbine bladed disks or gear wheels. It is well known that the dynamics of such …
WebSep 16, 2015 · Ring periodic structures are widely spread in engineering applications, where natural frequencies can split due to the deviation from axisymmetry. ... 2 Tianjin Key Laboratory of Nonlinear Dynamics and Chaos Control, Tianjin, P. R. China. ... Spatial modulation of repeated vibration modes in rotationally periodic structures. WebApr 19, 2001 · The forced vibration of a rotationally periodic structure when subjected to travelling wave excitation is discussed, with emphasis placed on the steady-state response of doublet modes having either repeated or split frequencies. Such vibration modes have spatially modulated shapes defined by (1) the number of nodal diameters …
WebApr 18, 2005 · Dynamics of rotationally periodic structures. Article. Jan 1979; INT J NUMER METH ENG; D. L. Thomas; The paper considers the finite element analysis of the free, undamped and the forced damped ... WebFeb 8, 1980 · For a 100 m parabolic dish structure with 3642 structural members contained in 44 units, the periodic analysis involves less than 5% of the variables of a finite element analysis. The frequency response functions obtained are used to compare added coatings, gyroscopic, and tuned damping devices for reducing the responses of large …
WebJan 1, 1979 · Dynamics of rotationally periodic structures Thomas, D. L. 1979-01-01 00:00:00 Central Electricity Research Laboratories, Leatherhead, Surrey, England …
WebMay 1, 2011 · The model was extended to investigate the collective dynamics of periodic nonlinear two-dimensional arrays, and two applications have been considered: (i) a 2D … impey waterguard 10mWeb2. Rotationally Periodic Structures. A bladed disk or drum equipped with blades is said to have cyclic symmetry, with an interblade phase angle of .It is possible to analyze the complete structure by considering only one substructure [13, 14].Considering two points at the same relative position in two adjacent sectors, the free vibration modes of cyclic … impey waterguard wg10WebJul 1, 1999 · This paper proposes a multi-mode vibration suppression scheme for rotationally periodic structures. Identical active-passive hybrid piezoelectric networks … impey waste coverWebDynamics of rotationally periodic large space structure The analysis of large area rotationally periodic space structures presented in the paper combines the finite … impey waterguard installationWebMay 2, 2014 · Prime examples of rotationally periodic structures are bladed disks in turbomachinery, where several characteristic dynamic properties of periodic structures … impey wetroom formerWebDynamics of rotationally periodic large space structures. The dynamic analysis of large area space structures is restricted by cost and utter size of the computer analysis. … impey wet floor systemWebThe free and forced motions of a nonlinear periodic structure with cyclic symmetry are studied. The structure consists of a number of identical linear flexural members coupled … impey waterproof membrane