2024 The dynamics of bolted and laminated rotors

The dynamics of bolted and laminated rotors

Author: qggs

August undefined, 2024

Webadshelp[at]cfa.harvard.edu The ADS is operated by the Smithsonian Astrophysical Observatory under NASA Cooperative Agreement NNX16AC86A WebNov 26, 2024 · The largest Lyapunov exponent, three-dimension spectral plots, and frequency-response curves are employed to reveal the effect of the bending behavior on the rotor dynamics. Comparisons indicate that the structural parameter of the bolted joint has a slight influence on motion stability, critical speed, and amplitude corresponding to the ...

The dynamics of bolted and laminated rotors Semantic Scholar

WebSep 18, 2014 · Based on the mechanism of stiffness loss, the equivalent stiffness is used to replace the fixed configuration stiffness on the location of bolts in finite element model of … WebThe rotor is a moving component of an electromagnetic system in the electric motor, electric generator, or alternator. Its rotation is due to the interaction between the windings and magnetic fields which produces a … log 反対エクセル

Rotordynamics - Wikipedia

WebThe dynamics of bolted and laminated rotors. A. Isa, J. Penny, S. Garvey. Published 2000. Engineering. A significant proportion of all of the rotating machines in operation have rotors which are either bolted or laminated construction. Gas-turbines and small steam turbines frequently comprise a set of discs clamped together by either a single ... WebWelcome Home! Tarkett Home is proud to provide North America with a wide variety of flooring products that elevate your space, express who you are, and help make your home … WebDOI: 10.1177/0954406213489084 Corpus ID: 110722378; Analytical model of bolted disk–drum joints and its application to dynamic analysis of jointed rotor @article{Qin2014AnalyticalMO, title={Analytical model of bolted disk–drum joints and its application to dynamic analysis of jointed rotor}, author={Zhao-ye Qin and Qinkai Han and … afzetpion

The Dynamics of Bolted and Laminated Rotors, #183

WebJan 24, 2024 · Secondly, the motion equation of the rotor with the characteristics of local stiffness asymmetric and initial bending result from bolt failure of the flange connection is established by a novel modeling method, and the dynamic response characteristics of the rotor are studied; Finally, a rotor test bench with flange connection is established to ... WebNov 4, 2024 · Abstract. Bolted flange joints are used to connect adjacent disks and drums in aero-engine rotors. The flange mating contact surfaces usually move relative to each other and deform when they are subjected to numerous combinations of loads during normal operation. Consequently, the local bending stiffness of the bolted flange joint is altered … log動画フリー素材Web1. Introduction. The nonlinear behavior of the bolted joint structure has long been studied in the context of engineering machinery. Bolted joint characteristics are of great significance because of its influence in structural vibration and play a … log 戻し方エクセル

"WebNov 28, 2013 · The few studies on bolted joints in rotor systems focused on evaluating the nonlinear influence of the joints on the rotor dynamics without taking into account the loosening phenomenon [6][7][8][9 ... " - The dynamics of bolted and laminated rotors

The dynamics of bolted and laminated rotors

The Evolution of Rotor and Blade Design - NREL

WebAug 3, 2010 · Sekhar AS and Srinivas BN Dynamics of cracked composite shafts. J Reinf Plast Compos 2003; 22: 637-653. Google Scholar. Reddy JN Mechanics of laminated composite plates: Theory and analysis. Boca Raton: CRC Press, 1997, p.217. ... Dynamic analysis of laminated rotors using a layerwise theory. Go to citation Crossref Google … WebRotor-noise and aesthetic considerations strongly support the choice of three blades rather than two or one. A three-bladed rotor has two noise-related advantages over fewer blades. For a given rotor diameter and solidity, a three-bladed rotor will have two-thirds the blade loading of a two-bladed rotor and one-third that of a one-bladed rotor.

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WebJun 1, 2024 · Based on the dynamical model, the dynamic characteristics of the bolted rotor are investigated in detail. The results show that the bolted joint mainly produces stiffness … WebJun 11, 2024 · The laminations of the stack are axially pre-stressed either on a central shaft, by peripheral tie rods (4, 15) or a combination of both of these technologies. Bolted rotors …

WebJul 16, 2024 · The evolution law of the state of the rotor system with bolt flange is investigated through numerical simulation and experimental data. The results indicated that the modeling and solving method proposed in this paper could accurately solve the rotor-bearing system with bolted flange joints and analyze its vibration characteristics. WebJan 15, 2014 · The flexural stiffness of a rod-fastened Jeffcott rotor dramatically decreased with the increase of the dimensionless load γ 1 from 1 to 2.5. Thus, the dynamics of the …

WebDec 22, 2010 · This study investigated the rigidity and contact state of joint structures that influenced the rotor dynamic characteristics and imbalance response, and the curve for variable structure parameters and the external load. The consideration of rotor joint structures dynamics design was also discussed. The finite-element models were … WebMar 15, 2024 · The dynamic response of a bolted composite joint is illustrated in Fig. 2.The structure is comprised of two laminates attached by a single bolt. One end is fixed, and the other end is transiently excited by a force F.During vibration, the beam will bend, causing surfaces of the joint interface to contact, separate, and collide in the normal direction (not …

WebSep 1, 2024 · Abstract. In this study, a method to evaluate the dynamic properties of bolted joints in laminated composites is proposed. The propagation of flexural waves through …

WebRotordynamics, also known as rotor dynamics, is a specialized branch of applied mechanics concerned with the behavior and diagnosis of rotating structures. It is commonly used to analyze the behavior of structures ranging from jet engines and steam turbines to auto engines and computer disk storage.At its most basic level, rotor dynamics is concerned … afzetunit occasionsWebJan 1, 2024 · [8][9] [10] Dynamics of the tie-bolt rotor with bolt loosening have been investigated in Qin et al. 11,12 Nonlinear contact effect is defined either by time-varying stiffness or by a simple cubic ... afzelia africanaWebDec 21, 2024 · The dual-rotor system has been widely used in aero-engines and has the characteristics of large axial size, the interaction between the high-pressure rotor and low-pressure rotor, and stiffness ... log 式を簡単にするhttp://www.newtondistributing.com/wp-content/uploads/2024/12/Bobrick-Colors-and-Styles-1.pdf afzien partneralimentatieWebwww.newtondistributing.com log管理ソフトWebNov 26, 2024 · The largest Lyapunov exponent, three-dimension spectral plots, and frequency-response curves are employed to reveal the effect of the bending behavior on the rotor dynamics. Comparisons indicate that the structural parameter of the bolted joint has a slight influence on motion stability, critical speed, and amplitude corresponding to the ... log撮影グレーディングWebJan 1, 2016 · In order to evaluate the influence of bolt loosening on the rotor dynamics, the local stiffness matrix is incorporated into the rotor dynamic model in this section. A simple drum rotor consisting of disks, drums and shafts supported by a rolling element bearing at each end as shown in Fig. 4 is studied here. In the rotor, the connections ... log 編集ソフト