Aircraft design / / Ajoy Kumar Kundu [[electronic resource]]

• Record Nr.: UNINA9910814223703321
• Autore: Kundu Ajoy Kumar <1932->
• Pubbl/distr/stampa: Cambridge : , : Cambridge University Press, , 2010
• ISBN: 1-107-21148-4; 1-282-53910-8; 9786612539107; 0-511-84465-4; 0-511-67910-6; 0-511-68556-4; 0-511-68233-6; 0-511-67785-5; 0-511-68431-2; 0-511-68035-X
• Descrizione fisica: 1 online resource (xlii, 606 pages) : digital, PDF file(s)
• Collana: Cambridge aerospace series ; ; 27
• Disciplina: 629.133/34
• Soggetti: Airplanes - Design and construction
• Lingua di pubblicazione: Inglese
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Note generali: Title from publisher's bibliographic system (viewed on 05 Oct 2015).
• Nota di bibliografia: Includes bibliographical references and index.
• Nota di contenuto: Cover; Half-title; Series-title; Title; Copyright; Contents; Symbols and Abbreviations; Preface; Road Map of the Book; 1 Introduction; 2 Methodology to Aircraft Design, Market Survey, and Airworthiness; 3 Aerodynamic Considerations; 4 Aircraft Classification, Statistics, and Choices for Configuration; 5 Aircraft Load; 6 Configuring Aircraft; 7 Undercarriage; 8 Aircraft Weight and Center of Gravity Estimation; 9 Aircraft Drag; 10 Aircraft Power Plant and Integration; 11 Aircraft Sizing, Engine Matching, and Variant Derivative; 12 Stability Considerations Affecting Aircraft Configuration; 13 Aircraft Performance14 Computational Fluid Dynamics; 15 Miscellaneous Design Considerations; 16 Aircraft Cost Considerations; 17 Aircraft Manufacturing Considerations; Appendix A Conversion; Appendix B International Standard Atmosphere (Table below from hydrostatic equations); Appendix C Aerofoils; Appendix D Case Studies; ; Appendix E Tire Data (Courtesy of Goodyear Tire Co.); References; Index
• Sommario/riassunto: Aircraft Design explores fixed winged aircraft design at the conceptual phase of a project. Designing an aircraft is a complex multifaceted process embracing many technical challenges in a multidisciplinary environment. By definition, the topic requires intelligent use of aerodynamic knowledge to configure aircraft geometry suited specifically to the customer's demands. It involves estimating aircraft weight and drag and computing the available thrust from the engine. The methodology shown here includes formal sizing of the aircraft, engine matching, and substantiating performance to comply with the customer's demands and government regulatory standards. Associated topics include safety issues, environmental issues, material choice, structural layout, understanding flight deck, avionics, and systems (for both civilian and military aircraft). Cost estimation and manufacturing considerations are also discussed. The chapters are arranged to optimize understanding of industrial approaches to aircraft design methodology. Example exercises from the author's industrial experience dealing with a typical aircraft design are included.

Proceedings of the 10th International Conference on Maintenance and Rehabilitation of Pavements : MAIREPAV10 - Volume 2 / / edited by Paulo Pereira, Jorge Pais

• Record Nr.: UNINA9910874692603321
• Autore: Pereira Paulo
• Pubbl/distr/stampa: Cham : , : Springer Nature Switzerland : , : Imprint : Springer, , 2024
• ISBN: 9783031635847; 9783031635830
• Edizione: [1st ed. 2024.]
• Descrizione fisica: 1 online resource (666 pages)
• Collana: Lecture Notes in Civil Engineering, , 2366-2565 ; ; 523
• Altri autori (Persone): PaisJorge
• Disciplina: 691
• Soggetti: Building materials; Transportation engineering; Traffic engineering; Materials - Analysis; Engineering geology; Foundations; Building Materials; Transportation Technology and Traffic Engineering; Materials Characterization Technique; Geoengineering; Foundation Engineering
• Lingua di pubblicazione: Inglese
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Nota di contenuto: Intro -- Preface -- Contents -- Surface Characteristics -- Evaluation of Skid Resistance of Grooved Pavements -- 1 Introduction -- 2 Methodology of Study -- 3 Experimental Program -- 3.1 Fabrication of Test Specimens -- 3.2 Measuring Skid Resistance at Various Angles from 0° to 90° Using BPT Test -- 3.3 Development of BPT Simulation Model -- 4 Test Results and Analysis -- 4.1 Results of BPT and COF57 Measurements -- 5 Correction of Measured BPN on Grooved Road Surfaces -- 6 Conclusion -- References -- Optimizing the Acoustical Durability of Semi-dense Asphalt from Statistical Analysis of In-Situ Performance Based on Mixture Data -- 1 Introduction -- 2 Materials -- ; 2.1 Bitumen -- 2.2 Mineral Aggregates -- 3 Methodology -- 3.1 CPX and Statistical Analysis -- 3.2 SDA Mixture Design -- 3.3 Mixture Preparation -- 3.4 Marshall Volumetrics -- 3.5 Water Sensitivity -- 4 Results -- 5 Discussion and Conclusions -- 5.1 Dynamic Standards for SDA Gradation -- 5.2 Height Tolerance of Marshall Samples -- References -- Back-Casting Initial IRI for Surface Roughness Model Calibration in Michigan -- 1 Introduction -- 2 MDOT Sensor Database -- 3 Methodology for Estimating Initial IRI -- 4 Summary -- References -- Development of Racetrack Grip Triangular Irregular Networks from Field Data -- 1 Introduction -- 1.1 Grip in Motorsport -- 1.2 Grip Data Collection in the Field -- 1.3 Grip Maps -- 1.4 Building Information Modeling -- 1.5 Triangular Irregular Network (TIN) and Thematic Maps -- 2 Research Methodology -- 2.1 Data Collection and Processing -- 2.2 Data Aggregation -- 2.3 Data Visualization -- 3 Results/Analysis -- 3.1 Data Collection and Processing -- 3.2 Data Aggregation -- 3.3 Data Visualization -- 4 Discussion -- 5 Conclusion -- References -- An Exploitation of Spray Mechanisms to Estimate Water Depths on a Road Surface -- 1 Introduction -- 2 Background.; 2.1 Definition of Water Depth -- 2.2 Splash and Spray Mechanisms -- 3 Experiments -- 3.1 Test Track -- 3.2 Measurement of Water Depth -- 3.3 Characterization of Water Spray -- 4 Results -- 4.1 Data Processing -- 4.2 Variation of Acceleration Amplitude with Water Depth -- 4.3 Discussions -- 5 Conclusions -- References -- Advancing Pavement Safety Assessment Through the Implementation of Network Level Continuous Friction Testing -- 1 Introduction -- 2 Technical Approach -- 2.1 Continuous Friction Sideway Force Coefficient Concept -- 2.2 Longitudinal Profile -- 2.3 Surface Texture (Macrotexture) -- 2.4 Rut Measurement -- 2.5 Spatial Referencing -- 2.6 Imaging -- 2.7 Synchronisation of Data -- 3 Cases -- 3.1 Case 1 -- 3.2 Case 2 -- 3.3 Case 3 -- 4 Conclusion -- Effect of Transverse Mastic on Pavement Roughness -- 1 Introduction -- 1.1 Background -- 1.2 Objective and Scope -- 2 Methodology -- 2.1 Test Sections -- 2.2 Transverse Crack Repair -- 2.3 Data Collection -- 3 Analysis -- 4 Conclusions -- References -- A Concept of Surface Roughness Index for Cycle Path: Bicycle Ride Index (BRI) -- 1 Introduction -- 2 Method for the Model Development -- 2.1 Overview of the Vehicle Model -- 2.2 Mathematical Description of the Model -- 2.3 Calculation of Parameters -- 3 Vibration Test for Parameter Estimation -- 3.1 Apparatus -- 3.2 Test Condition -- 4 Results and Discussion -- 4.1 Frequency Response of Bicycles -- 4.2 Model and Index Development -- 4.3 Specific Features and Advantages of BRI -- 5 Conclusions -- References -- Geographical Analysis and Identification of Pavement Surface Characteristics Causing Road User Complaints in Terms of Ride Quality -- 1 Introduction -- 2 Overview of Complaints -- 2.1 Summary of Analysis -- 2.2 Comparison with Traffic Volume -- 3 Identification of the Causes of Growth in Complaints -- 3.1 Influence of Seasonal Changes.; 3.2 Cause of Growth in Complaints -- 4 Evaluation of Surface Roughness Considering Localized Factor -- 4.1 Overview of the Analysis -- 4.2 Localized Factor at Complaint Locations -- 5 Profile Analysis -- 5.1 Overview of the Analysis -- 5.2 RMS Increase Rate -- 5.3 Average of Difference in RMS Increase Rate vs. Other Indicators -- 6 Conclusion -- References -- Non-contact Measurement of Chip Seal Chipping Loss -- 1 Introduction -- 2 Methodology -- 3 Data Analysis -- 4 Conclusions -- References -- How to Estimate IRI Based on PCI Values to Report the Pavement Condition of Local Roads? -- 1 Introduction -- 2 Background -- 3 Methodology to Develop Equations to Estimate IRI Based on PCI -- 3.1 Data Collection of PCI ; and IRI -- 3.2 Descriptive Statistical Data Analysis of PCI and IRI -- 3.3 Hybrid Modeling Approach to Analyze PCI and IRI -- 4 Conclusions -- References -- Innovative Retexturization of Flushed Road Seals -- 1 Introduction -- 2 Contributors to Seal Flushing -- 2.1 Seal Flushing Treatment Options -- 3 Precursors to HiTex -- 3.1 Hot Matting -- 3.2 HiTex Early Prototypes -- 3.3 Next Steps for Development of HiTex Plant and Process -- 3.4 Current HiTex Prototype -- 4 Independent Testing - HiTex Highway Trial -- 5 HiTex Trial Flushed Expressway SH1 2023 -- 6 Next Steps for Process and Plant Development -- 7 In Conclusion -- References -- Longevity of Shotblasting: Friction and Texture Improvements -- 1 Introduction -- 2 Data -- 2.1 Friction -- 2.2 Texture -- 3 Methodology -- 4 Results -- 4.1 Friction -- 4.2 Texture -- 5 Conclusions -- References -- Pavement Monitoring -- Automated Detection and Estimation of Pavement Distress Dimensions Using Computer Vision -- 1 Introduction -- 2 Review of Literature -- 3 Materials and Methods -- 3.1 Data Collection -- 3.2 Dataset Structuring -- 3.3 System Workflow -- 3.4 Distress Detection Model.; 3.5 Distress Dimensions Estimation Model -- 4 Results and Discussions -- 5 Conclusion -- References -- A Conceptual Approach to Estimating the In-situ Layered Elastic Moduli for Flexible Pavements -- 1 Introduction -- 2 What is Surface Modulus? -- 3 Methodology -- 4 Results -- 4.1 Layer Thicknesses and Modulus Estimation -- 4.2 Correlation of Ε0(0) with Modulus of Elasticity E1, E2 and E3 -- 5 Conclusions -- References -- Effects of Longitudinal Crack on the FWD Data of Asphalt Pavement with Granular Base -- 1 Introduction -- 2 Development of Finite Element Model -- 3 Results and Discussions -- 4 Conclusions -- References -- Analyzing Environmental and Traffic Load Trends in an Instrumented Pavement Test Section, Kitchener, Ontario -- 1 Introduction -- 2 Project Site Description -- 3 Environmental Data Analysis -- 3.1 Temperature Layer Profile -- 3.2 Moisture Layer Profile -- 4 Traffic Load Data Analysis -- 4.1 Pressure Layer Profile -- 4.2 Strain Layer Profile -- 5 Conclusions -- References -- Assessment of Static Load Strains in a Flexible Pavement with Embedded Dynamic Wireless Power Transfer (DWPT) Components -- 1 Introduction -- 2 Objectives and Scope -- 3 Methodology -- 3.1 Description of the Testing Section -- 3.2 Static Load Test -- 4 Effect of DWPT Embedment and Dual-Axle Position on Static Load Strains -- 5 Summary of Findings -- References -- Assessing Road Pavements Using Satellite Remote Sensing: Towards Developing Network-Level Pavement Monitoring -- 1 Introduction -- 2 Material and Methods -- 2.1 Study Area -- 2.2 Data -- 2.3 Data Processing -- 3 Results -- 3.1 Interferometric Analysis -- 3.2 Classification of the PSI Observations -- 4 Discussion -- 5 Conclusion and Future Directions -- References -- Traffic Strain Analysis Provided by an FBG-Based Monitoring System -- 1 Introduction -- 2 Materials and Methods.; 2.1 Fiberglass Rods Instrumented with FBG Sensors -- 2.2 Installation Site -- 2.3 Data Collection -- 2.4 Typology of Vehicles -- 3 Results and Analysis -- 3.1 Speed and Distance Between Axles -- 3.2 Most Loaded Sensors -- 3.3 Strains Caused by Each Vehicle Class -- 3.4 Longitudinal Deflection Basins -- 3.5 Transverse Deflection Basins -- 4 Conclusions -- References -- Continuous Visual Survey of Road Pavement Using Convolutional Neural Networks and Smartphone Technology: A Data-Driven Approach -- 1 Introduction -- 2 Literature Review -- 3 Research Methods -- 4 Results -- 5 Conclusions -- References -- Detection of Geogrids in Road Pavements Using Ground-Penetrating Radar (GPR): Experimental Study and Image Analysis -- 1 Introduction -- 2 Literature Review -- 3 Methodology -- 3.1 Description of Laboratory Specimens -- 3.2 GPR Data Acquisition -- 4 ; Results and Discussion -- 4.1 Visual Representation of Processed Geogrid Data -- 4.2 Graphical Representation of Identified Geogrids -- 5 Conclusion -- References -- Sensor-Equipped Infrastructure for Integrated Monitoring of Asphalt Pavements -- 1 Introduction -- 2 Experimental Field -- 2.1 Layout -- 2.2 Materials -- 2.3 Sensors -- 3 First Results -- 4 Conclusion -- References -- Airport Pavement Structural Evaluation: The New ACR-PCR Method Applied to Existing Runway Pavements -- 1 Introduction -- 2 Case Study -- 2.1 Objective -- 2.2 Airport Movement Area - Runway -- 2.3 Pavement Structures -- 2.4 Load Tests Performed -- 2.5 Division into Homogeneous Sections -- 2.6 Backcalculation Analysis -- 2.7 ACN-PCN Definition -- 2.8 ACN-PCN Mechanistic Approach -- 2.9 ACN-PCN - COMFAA Method -- 2.10 ACR-PCR Definition -- 2.11 ACR-PCR - FAARFIELD Method -- 3 Conclusions -- References -- Maintenance -- Comparison of HMA Longitudinal Joint Compaction Using PWL Quality Measure -- 1 Introduction -- 1.1 Background.; 1.2 Effect of Joint Density on Pavements.
• Sommario/riassunto: This book gathers the proceedings of the 10th International Conference on Maintenance and Rehabilitation of Pavements (MAIREPAV10), held in Guimarães, Portugal on July 24-26, 2024. The conference series has been established to promote and discuss state-of-the-art design, maintenance, rehabilitation and management of pavements. The respective contributions share the latest insights from research and practice in the maintenance and rehabilitation of pavements, and discuss advanced materials, technologies and solutions for achieving an even more sustainable and environmentally friendly infrastructure. .