Relevant bibliographies by topics / Aerospace engineering|Mechanical engineering|Acoustics

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Conference papers

Academic literature on the topic 'Aerospace engineering|Mechanical engineering|Acoustics'

Author: Grafiati
Published: 4 June 2021
Last updated: 13 February 2022

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Journal articles on the topic "Aerospace engineering|Mechanical engineering|Acoustics"

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Donders, Stijn, Laszlo Farkas, Michael Hack, et al. "Assessment of Uncertainty for Structural and Mechatronics Engineering Applications." Applied Mechanics and Materials 104 (September 2011): 145–59. http://dx.doi.org/10.4028/www.scientific.net/amm.104.145.

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Nowadays, mechanical industries operate in a highly competitive environment, therefore the process of developing a component from concept through detailed Computer-Aided Engineering (CAE) and performance validation is optimized for reduced development time and increased product performance. To continuously improve the product design and performance and reduce the costs and time to market, the design and performance engineering is shifted more and more towards virtual modeling and simulation processes from the expensive test-based design evaluations. Secondly, the booming introduction of active
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Paolozzi, A., and I. Peroni. "RESPONSE OF AEROSPACE SANDWICH PANELS TO LAUNCH ACOUSTIC ENVIRONMENT." Journal of Sound and Vibration 196, no. 1 (1996): 1–18. http://dx.doi.org/10.1006/jsvi.1996.0464.

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Vahdati, N. "A Detailed Mechanical Model of a Double Pumper Fluid Mount." Journal of Vibration and Acoustics 120, no. 2 (1998): 361–70. http://dx.doi.org/10.1115/1.2893839.

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Conventional passive elastomenc mounts have been used as noise and vibration isolators in the automotive and aircraft industries for many years. For even better noise and vibration isolation, passive fluid mounts have been replacing elastomeric mounts in both the automotive and aerospace industries during the past few years. With more increase in the popularity of fluid mounts, it is important to characterize the dynamics of the fluid mounts more accurately. Many papers have been published on the modeling of these devices, but mostly on single pumper fluid mounts. In this paper, we focus on do
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Keane, A. J., and A. P. Bright. "PASSIVE VIBRATION CONTROL VIA UNUSUAL GEOMETRIES: EXPERIMENTS ON MODEL AEROSPACE STRUCTURES." Journal of Sound and Vibration 190, no. 4 (1996): 713–19. http://dx.doi.org/10.1006/jsvi.1996.0086.

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Noël, J. P., L. Renson, and G. Kerschen. "Complex dynamics of a nonlinear aerospace structure: Experimental identification and modal interactions." Journal of Sound and Vibration 333, no. 12 (2014): 2588–607. http://dx.doi.org/10.1016/j.jsv.2014.01.024.

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Gourinat, Yves, and Victorien Belloeil. "A Truncated Low Approach of Intrinsic Linear and Nonlinear Damping in Thin Structures." Journal of Vibration and Acoustics 129, no. 1 (2006): 32–38. http://dx.doi.org/10.1115/1.2358153.

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An adaptive approach of vibrating thin structures is proposed here. The method consists in applying an equivalent adimensional damping ratio to each potential resonance. This ratio is deduced from experimental data obtained in vacuum facility, in relation with frequencies, for several structural technologies. Consequently, it is possible to calculate the structure in a linear nondissipative context, valid out of resonance bands, and truncated in those bands. Thus, the equivalent damping ratio is directly used to define adimensional resonance truncation bandwith and level. The contribution cons
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Kim, C., A. B. Palazzolo, A. Kascak, and G. Brown. "Eddy Current Effects on the Design of Rotor-Magnetic Bearing Systems." Journal of Vibration and Acoustics 117, B (1995): 162–70. http://dx.doi.org/10.1115/1.2838658.

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The recent growth of magnetic bearing applications in the chemical, utility and aerospace industries requires more accurate design tools to insure reliable and effective operation as components of the overall rotor bearing system. This paper provides a novel approach for simulating a flexible rotor suspended in magnetic bearings, accounting for eddy current effects. The manuscript discusses some magnetic bearing fundamentals, leading up to the new methods for modeling. Test results show very good correlation with theory and confirm the importance of considering eddy current effects. Surface co
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Zimmerman, D. C., S. W. Smith, H. M. Kim, and T. J. Bartkowicz. "An Experimental Study of Structural Health Monitoring Using Incomplete Measurements." Journal of Vibration and Acoustics 118, no. 4 (1996): 543–50. http://dx.doi.org/10.1115/1.2888333.

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In this paper, algorithmic approaches to enhance structural health monitoring capability when faced with incomplete measurements are addressed. The incomplete measurement problem has two aspects: (i) experimental measurement of a lesser number of modes of vibration than that of the analytical model and (ii) experimental measurement of a lesser number of degrees of freedom than that of the analytical model. Studies comparing model reduction, eigenvector expansion, and a hybrid model reduction/eigenvector expansion to address the second contribution are performed using experimental data. These a
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Olson, Steven E., Martin P. DeSimio, and Mark M. Derriso. "Beam Forming of Lamb Waves for Structural Health Monitoring." Journal of Vibration and Acoustics 129, no. 6 (2007): 730–38. http://dx.doi.org/10.1115/1.2731404.

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Structural health monitoring techniques are being developed to reduce operations and support costs, increase availability, and maintain safety of current and future air vehicle systems. The use of Lamb waves, guided elastic waves in a plate, has shown promise in detecting localized damage, such as cracking or corrosion, due to the short wavelengths of the propagating waves. Lamb wave techniques have been utilized for structural health monitoring of simple plate and shell structures. However, most aerospace structures are significantly more complex and advanced techniques may be required. One a
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Liu, T. S., and J. C. Lin. "Forced Vibration of Flexible Body Systems: A Dynamic Stiffness Method." Journal of Vibration and Acoustics 115, no. 4 (1993): 468–76. http://dx.doi.org/10.1115/1.2930374.

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Due to the development of high speed machinery, robots, and aerospace structures, the research of flexible body systems undergoing both gross motion and elastic deformation has seen increasing importance. The finite element method and modal analysis are often used in formulating equations of motion for dynamic analysis of the systems which entail time domain, forced vibration analysis. This study develops a new method based on dynamic stiffness to investigate forced vibration of flexible body systems. In contrast to the conventional finite element method, shape functions and stiffness matrices
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Dissertations / Theses on the topic "Aerospace engineering|Mechanical engineering|Acoustics"

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Leng, Yujun. "Preliminary design tools in turbomachinery| Non-uniformly spaced blade rows, multistage interaction, unsteady radial waves, and propeller horizontal-axis turbine optimization." Thesis, Purdue University, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10149746.

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<p>Turbomachinery flow fields are inherently unsteady and complex which makes the related CFD analyses computationally intensive. Physically based preliminary design tools are desirable for parametric studies early in the design stage, and to provide deep physical insight and a good starting point for the later CFD analyses. Four analytical/semi-analytical models are developed in this study: 1) a generalized flat plate cascade model for investigating the unsteady aerodynamics of a blade row with non-uniformly spaced blades; 2) a multistage interaction model for investigating rotor-stator inter
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Henricks, Quinten Michael. "Computational Aerodynamic and Aeroacoustic Study of Small-Scale Rotor Geometries." The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1546618814905583.

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Velliyur, Ramachandran Krishna Guha. "An Aeroacoustic Analysis of Wind Turbines." The Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1293650904.

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Hahn, Casey Bernard. "Design and Validation of the New Jet Facility and Anechoic Chamber." The Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1311877224.

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Kearney-Fischer, Martin A. "The Noise Signature and Production Mechanisms of Excited High Speed Jets." The Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1318961517.

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Pearson, Stephen Herbert. "Nonlinear Ball Chain Waveguides For Acoustic Emission And Ultrasound Sensing Of Ablation." ScholarWorks @ UVM, 2014. http://scholarworks.uvm.edu/graddis/256.

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Harsh environment acoustic emission and ultrasonic wave sensing applications often benefit from placing the sensor in a remote and more benign physical location by using waveguides to transmit elastic waves between the structural location under test and the transducer. Waveguides are normally designed to have high fidelity over broad frequency ranges to minimize distortion - often difficult to achieve in practice. This thesis reports on an examination of using nonlinear ball chain waveguides for the transmission of acoustic emission and ultrasonic waves for the monitoring of thermal protection
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Li, Wenhua. "Flow/acoustics mechanisms in two- and three-dimensional wake vortices." Diss., Manhattan, Kan. : Kansas State University, 2007. http://hdl.handle.net/2097/400.

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Durand, Christopher. "Validation of a CAA Code for a Case of Vortical Gust-Stator Interaction." University of Toledo / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1481203960382465.

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Sinha, Aniruddha. "Development of reduced-order models and strategies for feedback control of high-speed axisymmetric jets." The Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1312886098.

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Samani, Iman. "An Accelerated Method for Mean Flow Boundary Conditions for Computational Aeroacoustics." University of Toledo / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1533042926556836.

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Conference papers on the topic "Aerospace engineering|Mechanical engineering|Acoustics"

1

Lee, Andrew, and Mihir Desai. "Acoustic Amplification of Flow Ripple and Cavitation Damage in an Aerospace Fuel System Component." In ASME 2020 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/imece2020-23568.

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Abstract In a recent investigation of external fuel leaks from an aerospace pressure control valve, cavitation damages were discovered in a small deadheaded cavity, which was created by the axial clearance between the mating subcomponents. Experiments using high bandwidth pressure sensors showed that there were severe pressure fluctuations in the cavity and that the pressure repeatedly fell below the local vapor pressure of the fuel, which would cause cavitation. Spectral analyses showed resonance-like amplification of flow ripple in the valve surrounding inside the valve cavity. The apparent
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Nehete, D. V., S. V. Modak, and K. Gupta. "A Method for FE Model Updating of Coupled Vibro-Acoustic Systems Using Constrained Optimization." In ASME 2013 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/imece2013-66843.

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Finite element (FE) model updating is now recognized as an effective approach to reduce modeling inaccuracies present in an FE model. FE model updating has been researched and studied well for updating FE models of purely structural dynamic systems. However there exists another class of systems known as vibro-acoustics in which acoustic response is generated in a medium due to the vibration of enclosing structure. Such systems are commonly found in aerospace, automotive and other transportation applications. Vibro-acoustic FE modeling is essential for sound acoustic design of these systems. Vi
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Journal articles Dissertations / Theses
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