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2 edition of Similitude requirements and scaling relationships as applied to model testing found in the catalog.

Similitude requirements and scaling relationships as applied to model testing

Chester H Wolowicz

Similitude requirements and scaling relationships as applied to model testing

by Chester H Wolowicz

  • 234 Want to read
  • 23 Currently reading

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

    Subjects:
  • Stability of airplanes -- Testing,
  • Wind tunnels -- Testing,
  • Airplanes -- Flight testing

  • Edition Notes

    StatementChester H. Wolowicz, James S. Bowman, Jr., and William P. Gilbert
    SeriesNASA technical paper -- 1435
    ContributionsBowman, James S. 1924-, Gilbert, William P, United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch, Hugh L. Dryden Flight Research Center, Langley Research Center
    The Physical Object
    Pagination61 p. ;
    Number of Pages61
    ID Numbers
    Open LibraryOL14932357M

    Practical Model-Based Testing gives a practical introduction to model-based testing, showing how to write models for testing purposes and how to use model-based testing tools to generate test is aimed at testers and software developers who wish to use model Cited by: Similitude Requirements and Scaling Relationships as Applied to Model Testing Chester H. Wolowicz, James S. Bowman, Jr., and William P. Gilbert AUGUST

    Small scale modelling of concrete structures. OF PHYSICAL AND MATHEMATICAL MODELS FUTURE APPLICATIONS OF PHYSICAL MODELLING TECHNIQUES --REFERENCES Model Analysis and Similitude Requirements INTRODUCTION DIMENSIONS OF PHYSICAL QUANTITIES SIMILITUDE RELATIONSHIPS AND SCALING FACTORS APPLICATION TO . This book teaches new methods for specifying, analyzing, and testing software, essentials for creating high-quality software. Using a toolkit built on the C# language and framework, the authors work through several realistic case studies in depth and detail, making the methods easy for programmers and testers to learn and by:

    Three-quarters-power scaling has fascinated scientists for over 80 years, and many attempts have been made to explain it. The most influential current explanation has been that of West et al. [], which helped to stimulate recent renewed interest in biological scaling [].Their general model (hereafter called the WBE model) explains the 3/4-power law as being the result of the physics and Cited by: development model so widely disparaged is the basis for our most common testing model. My criticisms also apply to testing models that are embellishments on better development models, such as the spiral model [Boehm88]. Testing activities are added to the model as follows: Requirements Specification Architectural Design Detailed Design Code.


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Similitude requirements and scaling relationships as applied to model testing by Chester H Wolowicz Download PDF EPUB FB2

Similitude Requirements and Scaling Relationships as Applied to Model Testing Chester H. Wolowicz, Drydeiz Flight Research Center Edwards, Califoriiia James S.

Bowman, Jr., and William P. Gilbert Langley Research Ceizter Humpton, Virginia National Aeronautics and Space Administration Scientific and Technical Information BranchFile Size: 2MB.

Similitude requirements and scaling relationships as applied to model testing. Washington, D.C.: National Aeronautics and Space Administration, Scientific and. Fundamental to concept of similarity and model testing Enables scaling for different physical dimensions and fluid properties.

Mechanics of Fluids and Transport Processes Chapter 7 Professor Fred Stern 2Fall Dimensions and Equations Basic dimensions: F, L, and t or M, L, and t f represents functional relationships between AFile Size: KB. Similitude is a concept applicable to the testing of engineering models.A model is said to have similitude with the real application if the two share geometric similarity, kinematic similarity and dynamic similarity.

Similarity and similitude are interchangeable in this context. The term dynamic similitude is often used as a catch-all because it implies that geometric and kinematic similitude.

is the quantity value of the scale model; This relationship must be applied to all quantities of interest in the prototype, observing similitude requirements—so the scale model can be built using dimensions and materials that make scale model testing results meaningful with respect to the prototype.

These relationships suggest that when line controlling length for a problem is macroscopic, similitude between a centrifuge model and the prototype can be achieved; otherwise, direct scaling of.

Design, Scaling, Similitude, and Modeling of ShakeModeling of Shake-Table TestTable Test Structures Andreas Stavridis, Benson Shing, and Joel Conte – should satisfy similitude requirements so that they can be used to study the response of full-scale structuresscale structuresFile Size: 2MB.

A similitude for structural acoustic enclosures. Similitude Requirements and Scaling Relationships as Applied to Model Testing, NASA Technical Paper These similitude requirements are. Scaling of the e-Genius-Mod followed the scientific findings of NASA Technical Paper “Similitude Requirements and Scaling Relationships as Applied to Model Testing”.

Dimension and inertia scaling follow the similarity criteria of Froude number [3,10].Cited by: 2. Similitude requirements and scaling relationships as applied to model testing / (Washington, D.C.: National Aeronautics and Space Administration, Scientific and.

The selection of the most suitable configuration between several candidate aeroshapes for the MarcoPolo-R ERC is performed by means of subsonic dynamic stability tests.

These tests were conducted in the vertical free jet facility VMK at the German Aerospace Center (DLR) in Cologne, employing the free flight technique. Several different model configurations with respect to the shape, Author: Arianit Preci, Ali Gülhan, Etienne Clopeau, Philippe Tran, Luca Ferracina, Lionel Marraffa.

Performance Analysis of a Novel Compact Flotation Unit A. Hayatdavoudi on a thesis project titled “Optimization of Compact Flotation Unit Using Response Surface Methodology and Constrained Similitude” under guidance of Dr. Asadollah Hayatdavoudi. Similitude Requirements and Scaling Relationships as Applied to Model Testing,” NASA Cited by: 1.

Scale Physical Hydraulic Modeling & General Hydraulic Similitude Scale model studies of hydraulic systems have proven a cost-effective means of investigating performance of a proposed structure or of proposed system modifications, provided requirements for hydraulic similitude are met.

Reyleigh’s method Let X is a variable, which depends on X1, X2 and X3, then X f X X X= [, ]1 2 3 This can be written as 1 2 X K X X X= a b c where K is a constant and a, b, c are arbitrary Size: 54KB. Additionally, one can cite an investigation about the use of scale models to determine vehicle characteristics, and a technical paper about the similitude requirements and scaling relationship that apply to wind-tunnel and free-flight model airplane testing.

Although more focused on aerodynamic studies, the latter derives the similitude Cited by: A New Similitude Analysis Method for a Scale Model Test Applied Dimensional Analysis and Modeling [M]. Butterworth-Heinemann, (). Prediction of the dynamic characteristics of an elastically supported full-size flat plate from those of its complete-similitude scale model [J].

Computers and Structures, Vol. 84 (), p Cited by: 5. This is referred to as complete similitude. (2) Adequate model: First-order conditions, i.e., the conditions related to the main parameters are fulfilled.

This is referred to as first-order similitude. (3) Distorted model: At least one of the first order conditions is not satisfied.

This is referred to as partial by: 2. Similitude and Modeling describes the theoretical aspects and application of similitude method using mathematical apparatus. This book is organized into two parts encompassing 13 chapters, and begins with an introduction to a simple technological problem in similitude Edition: 1.

Opportunities and Challenges with Autonomous Micro Aerial Vehicles. Authors; Authors and affiliations W.P. Gilbert, Similitude requirements and scaling relationships as applied to model testing. Technical report Opportunities and Challenges with Autonomous Micro Aerial Vehicles.

In: Christensen H., Khatib O. (eds) Robotics Research Cited by:   Dimensional analysis is used to develop similitude requirements according to which the geometry, initial and boundary conditions, material properties and the loading of the model and prototype have to be related so that the behavior of the latter can be expressed as a Cited by:.

Scale model. From Wikipedia, the free encyclopedia. Jump to navigation Jump to search. A scale model of the Tower of London. This model can be found inside the tower.In general, model-scale results are comparable to the full-scale prototype if material similitude requirements are met that relate the response of the scaled model to the full-scale prototype.

For wood-frame models, the results are comparable only up to the yield point or elastic limit due to the inability to model the grain size and Cited by: 7.Dimensional analysis is used to develop similitude requirements according to which the geometry, initial and boundary conditions, material properties and the loading of the model and prototype have to be related so that the behaviour of the latter can be expressed as a function of the behaviour of the by: