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Tuesday, May 19, 2020 | History

3 edition of Coupled multi-disciplinary simulation of composite engine structures in propulsion environment found in the catalog.

Coupled multi-disciplinary simulation of composite engine structures in propulsion environment

C. C. Chamis

Coupled multi-disciplinary simulation of composite engine structures in propulsion environment

by C. C. Chamis

  • 188 Want to read
  • 33 Currently reading

Published by National Aeronautics and Space Administration, For sale by the National Technical Information Service in [Washington, DC], [Springfield, Va .
Written in English

    Subjects:
  • Composite materials.,
  • Heat -- Transmission.

  • Edition Notes

    StatementChristos C. Chamis and Surendra N. Singhal.
    SeriesNASA technical memorandum -- 105575.
    ContributionsSinghal, Surendra N., United States. National Aeronautics and Space Administration.
    The Physical Object
    FormatMicroform
    Pagination1 v.
    ID Numbers
    Open LibraryOL18052956M

    The typical propulsion plant installation of a modern merchant vessel, shown in Fig.1, consists of the main marine Diesel engine, the shafting system and the propeller. Vs Engine Tp F Rs Fig. 1 Ship propulsion schematic The main engine can be of the two-stroke type for . *Prices in US$ apply to orders placed in the Americas only. Prices in GBP apply to orders placed in Great Britain only. Prices in € represent the retail prices valid in Germany (unless otherwise indicated).

    Modeling Complex Engineering Structures provides an overview of cutting-edge developments in computational theory and techniques as currently applied in various fields of structural analysis, in the United States and around the world. Individual contributors discuss research and practice in diverse but related applications such as high-rise. hot multi-layered composite structure, (4) degradation in the ply failure strength of the excited structure due to acoustic loading, and (5) acoustic fatigue resistance of the excited structure, including propulsion environment. Effects of the laminate configuration and environment on the acoustic fatigue life are evaluated. For the cases examined.

    Finite element simulation of composite ship structures with fluid structure interaction. Multi-disciplinary analysis and design optimization allow designers to break away from the traditional design spiral approach and focus on searching the design space for the best overall design rather than considering best discipline-specific designs Author: Hassan Mahfuz, Siyuan ma. TY - BOOK. T1 - Engineering Mechanics of Composite Materials. AU - Daniel, Isaac M. AU - Ishai, Ori. PY - Y1 - M3 - Book. BT - Engineering Mechanics of Composite MaterialsCited by:


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Coupled multi-disciplinary simulation of composite engine structures in propulsion environment by C. C. Chamis Download PDF EPUB FB2

A computational simulation procedure is described for the coupled response of multi-layered multi-material composite engine structural components which are subjected to simultaneous multi-disciplinary thermal, structural, vibration, and acoustic loadings including the effect of hostile by: 4.

Get this from a library. Coupled multi-disciplinary simulation of composite engine structures in propulsion environment. [C C Chamis; Surendra N Singhal; United States.

National Aeronautics and Space Administration.]. BibTeX @MISC{Chamis_coupledmulti-disciplinary, author = {Christos C. Chamis}, title = {Coupled Multi-Disciplinary Simulation of Composite Engine Structures in Propulsion Environment}, year = {}}.

A computational simulation procedure is described for the coupled response of multi-layered multi-material composite engine structural components which are subjected to simultaneous multi-disciplinary thermal, structural, vibration, and acoustic loadings including the effect of hostile environments.

A computational simulation procedure is described for the coupled response of multilayered multimaterial composite engine structural components that are subjected to simultaneous multidisciplinary thermal, structural, vibration, and acoustic loading including the effect of hostile : C.

Chamis, S. Singhal. A computational simulation method is presented for Non-Deterministic Multidisciplinary Optimization of engine composite materials and structures.

A hypothetical engine duct made with ceramic matrix composites (CMC) is evaluated probabilistically in the presence of combined thermo-mechanical loading.

The structure is tailored by quantifying the Author: Christos C. Chamis. Propulsion System Design. Search for more papers by this author. Book Author(s): Mohammad H. Sadraey. Daniel Webster College, New Hampshire, USA.

Search for more papers by this author. First published: 19 September Engine Selection. Propulsion System Design Steps. Design Example. Problems.

References. Aircraft Design: A Systems. Mechanics Of Composite Structures - CRC Press Book This book compiles techniques used to analyze composite structural elements ranging from beams through plates to stiffened shells.

The content is suitable for graduate-level students with a basic background in mechanics of composite. The work is part of a large framework for the simulation of aircraft flight through a multi-disciplinary approach.

Novel numerical methods are presented for flight mechanics, turboprop engine simulation (in direct and inverse mode), and propeller by: 8. Multi-Disciplinary Design Investigation of Propulsive Fuselage Aircraft Concepts 3 taken as being removed from the aircraft drag balance, D ing, is described using the ingested drag ratio (cf.

Steiner et al., ), N t ing F D, E (2) where F N,t represents the total net thrust required for aircraft operation. The assessment of vehicular Cited by: 9. of the coupled multi-disciplinary behavior of multi-layered multi-material elevated temperature aircraft engine composite structures under simultaneous thermal, structural, and acoustic Ioadings in propulsion environment, typified in Figure 1.

As aircraft flight speeds have increased and orbital missions have mandated complex space structures, the need for a deeper understanding of aerospace thermal structural behavior has grown. The purpose of this book is to study the basic problems of complex computer analyses as they relate to this behavior.

The simulation utilizes the Numerical Propulsion System Simulation (NPSS) thermodynamic cycle modeling system coupled to a high-fidelity full-engine model represented by a set of coupled 3D. 6th Symposium on Multidisciplinary Analysis and Optimization.

04 September - 06 September Improving Genetic Algorithm efficiency and reliability in the design and optimization of composite structures. Infrasturcture for coupled multi-disciplinary problems in engine structures. Multi-component, multi-disciplinary simulation Multiple sub-systems, e.g.

a wing lift model operating at NASA Ames and a turbo-machine model operating at NASA Glenn, are combined using Glenn’s NPSS (Numerical Propulsion System Simulation) application framework that manages the interactions of multiple models and uses Grid services to coordinate computing and data storage systems across.

The in-puts to the code are constituent materials properties, composite geometry, and loading conditions. The outputs are various properties for ply and composite; composite structural response, including bending-stretching coupling; and composite stress analysis, including comparisons with failure criteria for combined stress.

Singhal's 32 research works with citations and reads, including: Reliability, Risk and Cost Trade-Offs for Composite Designs. Dear colleague, Various types of metallic and composite structures are used in modern engineering practice.

For aerospace, car industry or civil engineering applications the most important are thin walled structures made of different types of: metallic alloys, fibrous composites, laminates and multifunctional materials with a more complicated geometry of reinforcement including nanoparticles.

Percent difference comparison of buckling load for different parameters. Fiber composite thin shells subjected to thermal buckling loads (0/-e]2anote-pty laminate 15 30 45 60 75 SO Ply angle, deg Fig.

Influence of thickness ratio R/t on buckling behav- ior of laminated thin by: 8. Composite Structures, an International Journal, disseminates knowledge between users, manufacturers, designers and researchers involved in structures or structural components manufactured using composite materials.

The journal publishes papers which contribute to knowledge in the use of composite materials in engineering structures. AbstrAct: The optimum design of a solid propulsion system consists of optimization of various disciplines including structure, aerothermodynamics, heat transfer, and grain geometry.

In this paper, an efficient model of every discipline has been developed, and a suitable framework is introduced for these hard-coupled disciplines.

Hybrid optimizationCited by: 2.composite structures the aim with this thesis is to find an effective way of modeling and drafting of composite structures. The drafting of composite structures is complicated by the fact that every ply must be defined. Since composites can be made up of several hundred plies this File Size: KB.Mathematical Modelling of Diesel-Electric Propulsion Systems for Marine Vessels JAN FREDRIK HANSEN1,3, ALF KA˚ RE A˚ DNANES1 and THOR I.

FOSSEN2 ABSTRACT This article presents a mathematical model of a complete diesel-electric propulsion system, including components as diesel generators, distribution network, variable speed thruster-drives.