Aerospace
Permanent URI for this collection
Browse
Browsing Aerospace by Issue Date
Now showing 1 - 20 of 104
Results Per Page
Sort Options
Item Open Access DFA/MOST results(Cranfield University, 2017-01-06 15:41) Judt, David; Lawson, Craig;; Lockett, HelenResults for the empirical analysis of the assembly tasks using DFA and basic MOSTItem Open Access Raw post experiment preference data(Cranfield University, 2017-01-06 15:41) Judt, David; Lawson, Craig;; Lockett, HelenRaw data of participant responses to ranking the position preference order.Item Open Access Raw time results(Cranfield University, 2017-01-06 15:41) Judt, David; Lawson, Craig;; Lockett, HelenRaw data for the wing D-nose aircraft system assembly time trialsItem Open Access Dataset for SAE 2018-01-0725 "On the Aerodynamics of an Enclosed-Wheel Racing Car: an assessment and proposal of add-on devices for a fourth, high-performance configuration of the DrivAer model"(Cranfield University, 2018-04-10 08:56) Francisco Soares, Renan; Garry, Kevin; Holt, JennyExpansion dataset for the SAE Technical Paper 2018-01-0725, which includes:- experimental results (Figures 10 to 18) in spreadsheet format.- summary of experimental testing conditions per run.- details of statistical analysis per blocking factor (i.e. group of testing cases).- addition of corrected coefficients for wall interference (wind tunnel area blockage of 10.2%).SUMMARY:A. Front bumper splitter:Figure 10. Front bumper splitter: influence of splitter size on aerodynamic loads.B. Forebody lateral strakes:Figure 11. Forebody lateral strakes: influence of strake size on aerodynamic loads.Figure 12. Forebody lateral strakes: influence of assembly set on aerodynamic loads.C. Rear-end spoiler:Figure 13. Rear-end spoiler: influence of spoiler angle on aerodynamic loads.Figure 14. Rear-end spoiler: influence of spoiler size on aerodynamic loads.D. Underfloor diffuser:Figure 15. Underbody diffuser: influence of the diffuser angle on aerodynamic loads.Figure 16. Underbody diffuser: influence of longitudinal separators on aerodynamic loads.E. DrivAer high-performance Fastback configuration:Figure 17. High-performance Fastback DrivAer configuration: comparison of aerodynamic loads against the standard version.Figure 18. High-performance Fastback DrivAer configuration: Reynolds number sensitivity of aerodynamic loads.SUPPLEMENTARY MATERIALS:I. Publication:Soares, R., Knowles, A., Goñalons Olives, S., Garry, K. et al., "On the Aerodynamics of an Enclosed-Wheel Racing Car: An Assessment and Proposal of Add-On Devices for a Fourth, High-Performance Configuration of the DrivAer Model," SAE Technical Paper 2018-01-0725, 2018, https://doi.org/10.4271/2018-01-0725.II. CAD geometry:Soares, Renan francisco; Olives, Sergio Goñalons; Knowles, Andrew Paul; Garry, Kevin; Holt, Jenny (2018): DrivAer hp-F: the CAD geometry pack. figshare. Collection. doi:10.17862/cranfield.rd.c.3969120.Item Open Access Cranfield DrivAer] CAD_Pack_1 Main Body(Cranfield University, 2018-04-10 16:30) Francisco Soares, Renan; Garry, Kevin; Holt, JennyMain Body CAD Pack (35% scaled-version), including:1. DrivAer_hp - Main_body (S):Main-body surface, with two cuttings for Rear-end and Diffuser CAD Pack.2. DrivAer_hp - Main_body (S) (diffuser lid):'Diffuser lid' surface, which matches the Main-body's Diffuser cutting in order to complete the Main-body, smooth underfloor version (S).CAD files available in IGS, STEP, STL, and Parasolid formats. All geometries are provided in [mm].Notation:(S) = [modified] Smooth Underfloor CAD designed and uploaded by:Renan F Soares - PhD in Aerospace Applied Aerodynamics Group Cranfield University, United KingdomItem Open Access [Cranfield DrivAer] CAD_Pack_2 Rear-end (Standard DrivAer)(Cranfield University, 2018-04-10 16:30) Francisco Soares, Renan; Garry, Kevin; Holt, JennyRear-end CAD Pack (35% scaled-version), including:1. DrivAer - Rear-end Fastback (F):Rear-end surface equivalent to a generic Fastback car model.2. DrivAer - Rear-end Notchback (N):Rear-end surface equivalent to a generic Notchback car model.3. DrivAer - Rear-end Estateback (E):Rear-end surface equivalent to a generic Estateback car model.CAD files available in IGS, STEP, STL, and Parasolid formats. All geometries are provided in [mm].Notation:(F) = Fastback(N) = Notchback(E) = EstatebackReference:1. DrivAer Model : “Geometry”. Institute of Aerodynamics and Fluid Mechanics. Technical University of Munich. http://www.aer.mw.tum.de/en/research-groups/automotive/ drivaer/geometry/.-CAD adapted and uploaded by:Renan F Soares - PhD in AerospaceApplied Aerodynamics GroupCranfield University, United KingdomItem Open Access [Cranfield DrivAer] CAD_Pack_3 Mirrors(Cranfield University, 2018-04-10 16:30) Francisco Soares, Renan; Garry, Kevin; Holt, JennyMirrors CAD Pack (35% scaled-version), including:1. DrivAer - Mirrors (base plate only) (woM):DrivAer mirrors, base plate only.2. DrivAer - Mirrors (standard) (wM):DrivAer mirrors, standard version.CAD files available in IGS, STEP, STL, and Parasolid formats. All geometries are provided in [mm].Notation:(woM) = without external mirrors.(wM) = with external mirrors. --CAD designed and uploaded by:Renan F Soares - PhD in Aerospace Applied Aerodynamics Group Cranfield University, United KingdomItem Open Access [Cranfield DrivAer] CAD_Pack_4 Wheels(Cranfield University, 2018-04-10 16:30) Francisco Soares, Renan; Garry, Kevin; Holt, JennyWheels CAD Pack (35% scaled-version), including:1. DrivAer_hp - Front Wheels (wW) (GS off):Front Wheels pair geometry, which houses internal mounting for experimental tests.2. DrivAer_hp - Rear Wheels (wW) (GS off):Rear Wheels pair geometry, which houses internal mounting for experimental tests.2. DrivAer_hp - Wheel Inserts (woW):Inserts to fulfil all four wheel cavities, which converts the DrivAer model to the Closed body version.CAD files available in IGS, STEP, STL, and Parasolid formats. All geometries are provided in [mm].Notation:(wW) = with wheels.(woW) = without wheels.(GS off) = Without ground simulation (i.e. stationary ground condition). CAD designed and uploaded by:Renan F Soares - PhD in AerospaceApplied Aerodynamics GroupCranfield University, United KingdomItem Open Access [Cranfield DrivAer] CAD_Pack_5 Splitters(Cranfield University, 2018-04-10 16:31) Francisco Soares, Renan; Knowles, Andrew; Garry, Kevin; Holt, JennySplitter CAD Pack (35% scaled-version), including:1. DrivAer_hp - Splitter (06mm):Splitter positioned for a nominal length equal to 6 mm.2. DrivAer_hp - Splitter (12mm):Splitter positioned for a nominal length equal to 12 mm.3. DrivAer_hp - Splitter (18mm):Splitter positioned for a nominal length equal to 18 mm.4. DrivAer_hp - Splitter (30mm):Splitter positioned for a nominal length equal to 30 mm.5. DrivAer_hp - Splitter (35mm):Splitter positioned for a nominal length equal to 35 mm.6. DrivAer_hp - Splitter (41mm):Splitter positioned for a nominal length equal to 41 mm.CAD files available in IGS, STEP, STL, and Parasolid formats. All geometries are provided in [mm].Nominal splitter length equivalent to the 35%-scale model.-------------------------------------------------CAD designed and uploaded by:Renan F Soares - PhD in AerospaceApplied Aerodynamics GroupCranfield University, United KingdomItem Open Access [Cranfield DrivAer] CAD_Pack_6 Strakes(Cranfield University, 2018-04-10 16:32) Francisco Soares, Renan; Knowles, Andrew; Garry, Kevin; Holt, JennyStrakes CAD Pack (35% scaled-version), including:1. DrivAer_hp - Strakes (Lower-pair S-size):Lower pair of strakes, in nominal Small size.2. DrivAer_hp - Strakes (Lower-pair M-size):Lower pair of strakes, in nominal Medium size.3. DrivAer_hp - Strakes (Lower-pair L-size):Lower pair of strakes, in nominal Large size.4. DrivAer_hp - Strakes (Upper-pair S-size):Upper pair of strakes, in nominal Small size.5. DrivAer_hp - Strakes (Upper-pair M-size):Upper pair of strakes, in nominal Medium size.6. DrivAer_hp - Strakes (Upper-pair L-size):Upper pair of strakes, in nominal Large size.CAD files available in IGS, STEP, STL, and Parasolid formats. All geometries are provided in [mm].Notation:(Lower-set) = lower pais of strakes.(Upper-set) = upper pais of strakes.(Full-set) = both lower and upper pairs of strakes. CAD designed and uploaded by: Renan F Soares - PhD in Aerospace Applied Aerodynamics Group Cranfield University, United KingdomItem Open Access [Cranfield DrivAer] CAD_Pack_7 Spoilers(Cranfield University, 2018-04-10 16:32) Francisco Soares, Renan; Golons Olives, Sergio; Garry, Kevin; Holt, JennySpoilers CAD Pack (35% scaled-version), including:1. DrivAer_hp - Spoiler (spL040 spA40): Spoiler pack with plate size of 40 mm, set at 40 deg.2. DrivAer_hp - Spoiler (spL080 spA40):Spoiler pack with plate size of 80 mm, set at 40 deg.3. DrivAer_hp - Spoiler (spL120 spA40):Spoiler pack with plate size of 120 mm, set at 40 deg.4. DrivAer_hp - Spoiler (spL080 spA20):Spoiler pack with plate size of 80 mm, set at 20 deg.5. DrivAer_hp - Spoiler (spL080 spA60):Spoiler pack with plate size of 80 mm, set at 60 deg.CAD files available in IGS, STEP, STL, and Parasolid formats. All geometries are provided in [mm].Notation:(spL) = length of the spoiler plate.(spA) = angle of the spoiler plate, in reference to the ground. CAD designed and uploaded by:Renan F Soares - PhD in AerospaceApplied Aerodynamics GroupCranfield University, United KingdomItem Open Access [Cranfield DrivAer] CAD_Pack_8 Diffusers(Cranfield University, 2018-04-10 16:33) Francisco Soares, Renan; Goñalons Olives, Sergio; Garry, Kevin; Holt, JennyDiffusers CAD Pack (35% scaled-version), including:1. DrivAer_hp - Diffuser (side plates):Side plates used to generate an diffuser channel for slopping angles protruding the DrivAer main body (i.e. diffA < 7 deg).2. DrivAer_hp - Diffuser (diffA00 plain):Diffuser pack with a plain, sloping surface of 0 deg (i.e. 'no-diffuser' case).3. DrivAer_hp - Diffuser (diffA05 plain):Diffuser pack with a plain, sloping surface of 5 deg.4. DrivAer_hp - Diffuser (diffA10 plain):Diffuser pack with a plain, sloping surface of 10 deg.5. DrivAer_hp - Diffuser (diffA16 plain):Diffuser pack with a plain, sloping surface of 16 deg.6. DrivAer_hp - Diffuser (diffA05 SEP_on):Diffuser pack with a plain, sloping surface of 5 deg and 3 equidistant separators ('fins').7. DrivAer_hp - Diffuser (diffA10 SEP_on):Diffuser pack with a plain, sloping surface of 10 deg and 3 equidistant separators ('fins').8. DrivAer_hp - Diffuser (diffA16 SEP_on):Diffuser pack with a plain, sloping surface of 16 deg and 3 equidistant separators ('fins').CAD files available in IGS, STEP, STL, and Parasolid formats. All geometries are provided in [mm].Notation:(diffA) = nominal diffuser angle.(SEP_on) = use of longitudinal separators ('fins').-------------------------------------------------CAD designed and uploaded by:Renan F Soares - PhD in AerospaceApplied Aerodynamics GroupCranfield University, United KingdomItem Open Access Data for the paper "Inter-fibre failure of through-thickness reinforced laminates..."(Cranfield University, 2018-06-18 13:00) Cui, Hao; Yasaee, MehdiData used in the paper " Hao Cui, Antonio R. Melro, Mehdi Yasaee, Inter-fibre failure of through-thickness reinforced laminates in combined transverse compression and shear load, Composites Science and Technology, 2018 "Item Open Access Extremum Seeking Control for Truck Drag Reduction(Cranfield University, 2018-06-20 16:09) Whidborne, James; Garry, KevinMATLAB/Simulink codes for "Extremum Seeking Control for Truck Drag Reduction" G Papageorgiou, J Barden, J Whidborne, K Garry 12th UKACC International Conference on Control Sheffield, UK, 5th - 7th September 2018 Videos: converge.mp4 - shows ESC controller convergence with Speed controller reference, Vr=24 m/s Initial deflector height limits, deltaH=1.16 Gradient and wind speed are set to zeroItem Open Access Civil Transport Aircraft Evolvability Data(Cranfield University, 2018-10-15 13:44) Van Heerden, Stevan; Guenov, Marin; Molina-Cristobal, ArturoThis is an appendix to the paper `Evolvability and Design Reuse in Civil Jet Transport Aircraft', by A.S.J. van Heerden, Marin D. Guenov, and Arturo Molina-Cristobal. It contains data that was used to create the plots and figures in Sections 6, 7, and 8 of the paper.Item Open Access Power Gearbox and Pitch Control Mechanism for Open Rotors - Investigation of Preliminary Design Methodologies(Cranfield University, 2018-10-18 10:00) guiomar San benito pastor, DianaPoster presented at the Cranfield Doctoral Network Annual Event, September 2018.The expected result of this PhD research is a design methodology that would allow establishing the feasibility of a pusher counter-rotating open rotor (CROR) engine architecture, taking into account both performance and mechanical integrity aspects. The analysis will consider the preliminary design of the main technology enablers, i.e. the advanced power gearbox (PGB) and the pitch change mechanism (PCM), delving into sizing, mechanical integrity aspects and optimal positioning of the components within the propulsion system. The study will then be extended to assess: Design for performance through simulated flight trajectory assessments over selected missions; Lifing aspects of the components and their implication on maintenance costs; Economic benefits through a financial viability analysis. A key requirement is to optimize these objectives by determining the minimum size of the power transmission system of the CROR engine to transmit power from the free turbine to the counter-rotating propellers. This requirement will need to be met without compromising its mechanical integrity nor the overall performance of the engine.Item Open Access Design and Integration of a Hybrid Electric Fan Propulsion System(Cranfield University, 2018-10-18 10:00) Mastropierro, FrancescoPoster presented at the Cranfield Doctoral Network Annual Event, September 2018.Design and Integration of an Electric Fan Propulsion System for Hybrid Aircraft Electrification is one of the most promising trend for sustaining future aviation beyond the limits of current propulsion technologies. Advantages include lower emissions, higher efficiency components, better energy management and synergies with alternative technologies. Current limits are in higher costs, inferior power density and shorter ranges. Hybrid electric propulsion looks for synergies between current state-of-the-art engines and novel electric motors/batteries, the latter considered as black boxes.The research project aims to investigate quantitatively the unexplored design space for an electric fan propulsion system fitted on a specifically-designed nacelle for regional aircraft. The study entails with the assessments of the overall arrangement and geometry design, evaluating effects of internal pressure losses and cooling air requirements. A viable solution for the organization of the internal volume is the installation of a variable area nozzle. Its adoption would optimise fan performance along a defined mission, allowing a consistent reduction in power and size of electrical components, estimated up to 15%.Additional objectives are the assessment of critical integration aspects of the hybrid technology, such as trade-offs between size and weight of units, degree of hybridization, strategies for efficient energy usage. A techno-economic assessment would top the project, defining viability and economic feasibility of the technology. A realistic evaluation of the uncertainties associated will be included as it is essential to provide solid background to any result.The research uses a combination of dedicated performance software and mainly relies on CFD calculations for the investigation of the internal flows.The project is relevant in the context of evolving aerospace industry, as major companies are consistently investing in electric aviation. It provides contribution to existing knowledge and foundation for future research in the field, both at academic and industrial level.Item Open Access New solutions for old problems(Cranfield University, 2018-10-18 10:05) Pontillo, Alessandro3 Minute Thesis presented at the Cranfield Doctoral Network Annual Event, September 2018.Highly flexible structures are now a common scenario in the aeronautic industry due to the adoption of slender and longer wings in order to reduce drag and increase the overall aircraft efficiency. Such configuration brings new challenges as structural dynamics now overlaps flight dynamics. Testing is then more important than ever. The Cranfield BEam Reduction and Dynamic Scaling (BEARDS) programme aims to provide a numerical and experimental tool able to dynamically scale-down a full aircraft and to test it successfully in the wind tunnel. Being able to predict static response along with structure dynamics, allows either universities and industry to mitigate the risk of testing bigger and more expensive models. The presentation will focus on the BEARDS methodology, results obtained from tests already done in the Weybridge wind tunnel and on the future of the programme with the new designed eXperimental Beards (XB-2) model.Item Open Access Robot Light Skin' paper data for Figures 5-11(Cranfield University, 2018-11-08 11:38) chun gilbert Tang, Chi; Webb, Phil; Thrower, JohnExperiment data used in the publication "The development and evaluation of Robot Light Skin: A novel robot signalling system to improve communication in industrial human–robot collaboration" for the concept validation of the Robot Light Skin (RLS), the data included correspond to the following figures in the publication: Reaction time to light signals fig 5, hit-rate fig 6, task performance fig 7, ease of monitoring fig 8, level of tiredness fig 9, and eye tracking fixation time fig 10 and 11.Item Open Access Conceptual and preliminary design methods for use on conventional and blended wing body airliners(Cranfield University, 2019-02-19 11:40) Smith, Howard; Fielding, JohnTranscript of John Fielding and Howard Smith's 1999 lecture to Court, Cranfield University.