ESDU AZ Index: LIGLZ
 Effect on Buckling in Shear of Square Plates
 NonLinear Systems
 use of describing functions to predict, 84009
 Supersonic Flow, 70012, 82020, AERO B.S.02.03.01, AERO W.S.00.03.03
 Unsteady Aerodynamics, 82020
 see
 Regression
 see also
 Control Systems
 Damping
 Dynamic Stability
 Application of Discrete or Continuous Forms of Kalman Filter
 measurement noise elimination from randomlyexcited firstorder, 88039
 multidimensional for randomlyexcited multistate, 88039
 Measures of Frequency Response
 crossover frequency, frequency range, stability margins and resonance, 80002
 Measures of Performance
 for steadystate or transient response, 80002
 performance indices, 80002
 Modes of Response and Determination of Dominant Mode, 80002
 Parameter Identification From Frequency Response Measurements, 90006, 93016
 determination of initial values from approximation to Nyquist diagram, 90006, 93016
 Parameter Identification in Absence of Process Noise
 leastsquares minimisation including equation and outputerror methods, 87039
 maximum likelihood method, 88011
 Parameter Identification in Presence of Process Noise
 maximum likelihood method, 89032
 Response of First and SecondOrder Single Degree of Freedom
 graphs for various input functions, 69005
 Response of First and SecondOrder Two Degree of Freedom
 program to compute for arbitrary input, 82037
 Solution by Laplace Transform, 69025
 Calculation of Pin and Link Forces in MultiBar Planar
 comparison of static, kinetostatic and dynamic methods, 90022
 example equations for all classes of four bar mechanisms, 90022
 program for all classes of four bar mechanisms, 90022
 selection of appropriate method, 90022
 Design of MultiBar Planar Using OSMEC Program
 angular/linear accelerations and velocities, 97026
 bearing and driving forces, 97026
 cam, piston or trunnionmounted ram actuated, 97026
 design from direct input or by editing provided models, 97026
 driving torque, 97026
 explanation of modelling procedures, 97026
 installation of OSMEC program, 97023
 using pivoted or sliding joints, springs and/or gears, 97026
 worked examples to illustrate process in practical cases, 98023
 Errors in Coupler and Rocker Angles Due to Changes in Link Length, 10019
 Fourbar Linkage Analysis Using Constraints Approach, 10019
 Library of 43 MultiBar Planar Linkage Models Within OSMEC Program
 suitable for editing to match user's input/output needs, 97026
 Link length tolerances on performance of fourbar linkages, 10019
 worked examples crankrocker linkage and Ackermann steering linkage, 10019
 see
 Rotary Seals
 Use in NonDestructive Examination for Flaws, 91027
 Dynamic and Kinematic Viscosity
 introductory Data Item, 68036
 Physical Properties
 see also
 Beams of Sandwich Construction
 Corrugated Plates
 Cylinders of Circular Section (Strength and Vibration)
 Faceplate Wrinkling
 Flat Panels in General
 Flat Panels with Fibrereinforced Unflanged Integral Stiffeners
 Flat Panels with Flanged Integral Stiffeners
 Flat Panels with Lipped or Unlipped Zsection Stiffeners
 Flat Panels with Tophat Section Stiffeners
 Flat Panels with Tsection Integral Stiffeners
 Flat Panels with Unflanged Integral Stiffeners
 Flat Panels with Unlipped Zsection Stiffeners
 Flat Sandwich Panels (Isotropic Cores)
 Flat Sandwich Panels (Truss Cores)
 Interrivet Buckling
 Struts in General
 Struts of Channel Section
 Struts of Lipped or Unlipped Zsection
 Struts of Sandwich Construction
 Struts of Tubular Section
 Sections Composed of Strips, 73007
 Section Number in Aerodynamics Series, 00001
 Section Number in Aircraft Noise Series, 00010
 Section Number in Mechanisms Series, 00004
 Section Number in Performance Series, 99035
 Section Number in Structures Series, 00030
 Section Number in Transonic Aerodynamics Series, 99034
 Section Number in Tribology Series, 00005
 Section Number in Vibration and Acoustic Fatigue Series, 00011
 Introduction to Use for Curve Fitting or Data Analysis
 with or without a ramp function to represent discontinuous functions, 01011
 Wing/Flap/Nacelle Combination Submerged in Propeller Slipstream
 estimation for multipropellers on straight wing, 88031
 see also
 Derivatives
 Dynamic Stability
 Condition for Constant Speed Static Stability for Flexible Aircraft, 96037
 relation with elevator manoeuvre margin, 96037
 Condition for Overall Static Stability for Flexible Aircraft, 96037
 relation with elevator trim margin, 96037
 Description of Modes of Longitudinal Motion and Effect of Aircraft Characteristics on Them
 phugoid and shortperiod oscillation, 86021, 92006
 Desirable Characteristics of Longitudinal Modes for Good Aircraft Handling Qualities, 92006
 Equations of Motion
 rigid aircraft, 67003, 86021
 separation of lateral/longitudinal sets and appropriate characteristic equations, 67003, 86021
 Estimation of Trim Drag and Choice of Datum Conditions, 97016
 Inertia Coupling of Longitudinal/Lateral Equations
 rapid rolling manoeuvre, 67005, 67006, 67007
 Information on the use of Data Items on the Longitudinal Stability of Aircraft, 13005
 Requirements for Damping and Frequency of ShortPeriod Oscillation
 for military aircraft handling, according to flight phase, 92006
 Requirements for Phugoid Damping and Speed Stability Characteristics
 for military aircraft, 92006
 Static

 see also
 Static Aeroelasticity
 definitions of manoeuvre and neutral points, 86021
 expressions for static and manoeuvre margins, 86021
 introduction to concept, 86021
 relationship between margins and dynamic stability, 86021
 Fluid Flow

 see
 Boiling Flow in Pipes
 Condensing Flow in Pipes
 Fouling
 Fouling in Combustion Plant
 Fouling in Cooling Water Systems
 Pressure Drop Across Obstructions in Ducts
 Pressure Drop Across Tube Banks
 Pressure Drop in Gas or Vapourliquid Internal Flow
 Pressure Drop in Internal Flow
 Pressure Drop in Nonnewtonian Flow
 Pressure Drop in Shellandtube Heat Exchangers
 Sudden Contractions in Ducts
 Sudden Expansions in Ducts
 Twophase (Gas or Vapourliquid) Flow
 Vibrational Power Transmitted Between Coupled Curved or Flat Plates
 efficiency for direct coupling or coupling through a beam, 98020
 see also
 Damping
 see also
 Fretting Fatigue
 Fatigue Strength Under Axial Loading
 comparison of constant and variable amplitude loadings, 89046
 effect of alloy composition and heat treatment, 89046
 effect of different fastener types, heads and materials, 89046
 effect of fit and various interfay treatments, 89046
 effect of initial corner cracks, 89046
 effect of mean stress, 89046
 effect of plate thickness, 89046
 see also
 Steels
 Fatigue Crack Propagation Rate

 see also
 Crack Propagation
 characteristic slopes of plots against stress intensity factor, 81011
 effect of mean stress (or stress ratio), 81011
 effect of tensile stress, 81011
 in corrosive environment, 93033
 Fatigue Crack Propagation Rate (Short Cracks)
 effect of alloy composition, 93033
 effect of mean stress (or stress ratio), 93033
 in corrosive environment, 93033
 Fatigue Limit Under Axial Loading
 effect of mean stress for unnotched specimens, 88008
 effect of notch size and type, 74016
 probability of attainment for unnotched specimens, 88008
 relationship with tensile strength for notched specimens, 74016
 relationship with tensile strength for unnotched specimens, 88008
 semirange/mean stress diagram, 88008
 Fatigue Limit Under Bending
 effect of notch size and type, 74016
 probability of attainment for unnotched specimens, 88008
 relationship with tensile strength for notched specimens, 74016
 relationship with tensile strength for unnotched specimens, 88008
 Fatigue Limit Under Tension
 probability of attainment for unnotched specimens, 88008
 relationship with tensile strength for unnotched specimens, 88008
 Fracture Toughness
 variation with temperature, 83023
 Threshold Stress Intensity Factor Range, 81012
 effect of maximum stress intensity factor, 81012
 effect of mean stress (or stress ratio), 81012
 effect of tensile strength, 81012
 Composition and Contamination Conducive to Material Corrosion, 88018
 Guidance on Effect on Friction Coefficient, 89044
 Introduction to Viscosity Behaviour and Classification by Viscosity, 68036
 Petroleum Products
 effect of pressure on dynamic viscosity, 71003, 94017, 96002
 effect of temperature on kinematic viscosity, 71003
 typical values of density, 71003
 typical values of dynamic viscosity, 66024, 71003, 85027, 89045, 94017, 96002
 typical values of kinematic viscosity, 66024, 71003
 typical values of pressure exponent, 85027, 89045
 Solid Impregnated Metal Bearings
 Suitability of Various Dry Rubbing Bearing Materials for Use With
 carbon, polymer, solid lubricant impregnated metal, 87007
 Synthetic
 advantages and limitations, 94020
 decomposition and degradation, 94020
 flash points and spontaneous ignition temperatures, 94020
 oxidation limits, 94020
 relative costs, 94020
 resistance to nuclear radiation, 94020
 selection of most suitable, 94020
 temperature limits for selected life, 94020
 thermal stability limits, 94020
 typical values of density, 94020
 typical values of dynamic viscosity and pressure exponent, 85027, 89045, 94020
 typical values of kinematic viscosity, 66024
 typical values of specific heat capacity and thermal conductivity, 94020
 volatility, 94020
 see
 Lubricants
 see also
 Filters
 Reciprocating Seals
 Rotary Seals
 see also
 Fretting Fatigue
 AxiallyLoaded Aluminium Alloy With InterferenceFit Pins, 84025
 effect of alloy composition and treatment, 84025
 effect of bushing hole, 84025
 effect of degree of interference, 84025
 effect of mean stress, 84025
 effect of size, 84025
 AxiallyLoaded Aluminium Alloy With PushFit Pins, 80007
 effect of alloy composition, 80007
 effect of mean stress, 80007
 effect of size, 80007
 AxiallyLoaded Steel With ClearanceFit Pins, 82022
 effect of antifretting compounds and greases, 82022
 effect of clearance and side relief of pin, 82022
 effect of coldworking hole, 82022
 effect of material composition, 82022
 effect of mean stress, 82022
 effect of size, 82022
 effect of surface treatment and plating, 82022
 AxiallyLoaded Titanium Alloy With PushFit Pins, 77017
 effect of alloy composition, 77017
 effect of bushing hole, 77017
 effect of cold working hole, 77017
 effect of mean stress, 77017
 Bush or Pin Interference in Joint Loaded Through Pin
 effect on alternating stresses, 84025
 Estimation From Fatigue Data for Other Types of Specimens
 interference or pushfit pins, FAT A.05.02
 AxiallyLoaded in Any Material
 effect of pin bending in double shear joint, 91008
 prediction of failure by overall permanent deformation, 91008
 prediction of failure by shear rupture or bearing permanent deformation, 91008
 prediction of failure by tensile rupture, 91008
 NonAxiallyLoaded Aluminium Alloy or Steel
 effect of pin bending in double shear joint, 91008
 prediction of failure by permanent deformation, 91008
 prediction of failure by rupture, 91008
 AxiallyLoaded RoundEnded Waisted With ClearanceFit Pins
 effect of clearance on position of maximum stress, 81006
 effect of geometry and slotted shank on stress concentration, 81006
 AxiallyLoaded Round or SquareEnded With ClearanceFit Pins

 see also
 Pin Joints
 effect of clearance and lug thickness on stress concentration, 81006
 effect of clearance on position of maximum stress, 81006
 AxiallyLoaded With InterferenceFit Bushes
 effect of adjacent interferencefit bush on maximum tensile stress, 71011
 interface pressure and maximum tensile stress, 71011
 AxiallyLoaded With InterferenceFit Pins
 effect of adjacent interferencefit pin on maximum tensile stress, 71011
 maximum shear and tensile stresses, 71011
 AxiallyLoaded With Interference or PushFit Pins
 maximum shear stresses, 66011, FAT A.05.02
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