Transport Systems
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Browsing Transport Systems by Author "Barrington, James"
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Item Open Access Application of fibre optic sensing systems to measure rotor blade structural dynamics - underlying data(Cranfield University, 2021-03-12 09:17) James, Stephen; Kissinger, Thomas; Tatam, Ralph; Barrington, James; Chehura, Edmon; Weber, Simone; Mullaney, Kevin; Zanotti Fragonara, Luca; Petrunin, Ivan; Staines, StephenRefer to the paper for full details. Fig9a.csv: Comparison of the Power Spectral Density (PSD) of data recorded by the direct optical fibre shape sensing system, an optical fibre Bragg grating strain sensor and a 1D accelerometer with finite element modeling predictions, measured on the top surface of an Airbus Helicopters H135 bearingless main rotor blade on the quarter chord line at approximately 40% rotor radius. Fig9b.csv: Comparison of the Power Spectral Density (PSD) of data recorded by the direct optical fibre shape sensing system, an optical fibre Bragg grating strain sensor and a 1D accelerometer with finite element modeling predictions, measured on the top surface of an Airbus Helicopters H135 bearingless main rotor blade on the quarter chord line at approximately 60% rotor radius. Fig10_FBG_top.csv: Power Spectral Density (PSD) of the 7th fibre Bragg grating strain (FBG) sensor (FBG7) in the three FBG arrays bonded to the top surface of the Airbus Helicopters H135 bearingless main rotor blade, located at approximately 60% rotor radius. Fig10_FBG_bottom.csv: Power Spectral Density (PSD) of the 7th fibre Bragg grating strain sensor (FBG7) in the three FBG arrays bonded to the bottom surface of the Airbus Helicopters H135 bearingless main rotor blade, located at approximately 60% rotor radius. Fig11.csv: Time series of raw data of 3F frequency input collected at approximately 60% rotor radius for the accelerometer, fibre Bragg grating strain sensor and direct optical fibre shape sensor (vertical direction). Fig12.csv: Comparison of Power Spectral Density (PSD) for the 3F mode measured at approximately 60% rotor radius by the accelerometer, fibre Bragg grating strain sensor and direct optical fibre shape sensor (vertical direction). Fig14.csv: Mode shapes measured using the direct optical fibre shape sensor Fig15.cvs: Comparison of normalised displacement mode shapes measured using a 1D accelerometer, the direct optical fibre shape sensor with the finite element model prediction Fig16.csv: Normalised angle measurements performed by the direct optical fibre shape sensor with the ouput from the FE model for Mode 5F Fig17.csv:Comparison of normalised strain mode shapes determined by the FBG strain sensors and the output from the FE model.Item Open Access Data supporting "Optical Fibre Pressure Sensing Using a Frequency Modulated Laser-Based Signal Processing Technique"(Cranfield University, 2023-04-21 12:36) Barrington, James; James, Stephen; Kissinger, Thomas; Staines, Stephen; Prince, Simon; Alcusa Saez, Erica; Lawson, Nicholas; Tatam, RalphEach file contains the relevant data to the figure as stated in its name. Column headers within the file outline the variable and its associated unit. The authors, where possible, have tried to keep the data in its rawest, useable form in order to provide the greatest flexibility for future manipulation. All data files are formatted as csv for accessibility.Item Open Access Data supporting "The use of range-resolved interferometry for multi-parameter sensing in a wind tunnel"(Cranfield University, 2023-12-12 14:59) Barrington, James; James, Stephen; Kissinger, Thomas; Staines, Stephen; Alcusa Saez, Erica; Lawson, Nicholas; Tatam, Ralph; Prince, SimonEach data set relates to the data displayed in Figure 2 of the conference paper. The 1st column in each file outlines the data type and unit.Item Open Access Data supporting: 'Fibre-optic measurement of strain and shape on a helicopter rotor blade during a ground run: data for the measurement of shape'(Cranfield University, 2022-09-01 15:50) Kissinger, Thomas; James, Stephen; Weber, Simone; Mullaney, Kevin; Chehura, Edmon; Barrington, James; Staines, Stephen; Tatam, RalphFSI_Phase_Data_Shape_CORD.csv contains the raw phase data from the three Fibre Segment interferometry array installed on the Direct Optical Fibre Shape Sensing Rod described in the paper: "Fibre-optic measurement of strain and shape on a helicopter rotor blade during a ground run - part 2: measurement of shape", Smart Materials and Structure, online 25 May 2022. Shape_Data_Vertical_CORD.csv contains the processed shape data in the vertical (flapping) direction, for the T&B2 ground run. Note that the position measurements are relative to the first FSI reflector on the rod, not to the centre of rotation of the blade. Shape_Data_Horizontal_CORD.csv contains the processed shape data n the horizontal (lagging) direction, for the T&B2 ground run. Note that the position measurements are relative to the first FSI reflector on the rod, not to the centre of rotation of the blade.Item Open Access Data supporting: 'Fibre-optic measurement of strain and shape on a helicopter rotor blade during a ground run: data for the measurement of strain'(Cranfield University, 2022-09-01 15:49) James, Stephen; Kissinger, Thomas; Weber, Simone; Mullaney, Kevin; Chehura, Edmon; Barrington, James; Tatam, RalphFBG_Data_CORD.csv contains the raw wavelength data from the 10 FBGs (G1-G10) recorded during the ground run detailed within the paper "Fibre-optic measurement of strain and shape on a helicopter rotor blade during a ground run - part 1: measurement of strain", James et al. Smart Materials and Structures, available online, May 2022. The unit of the "Time" column is seconds, while the units of columns G1-G10 are nanometers. FSI_Data_CORD.csv contains the raw phase data obtained from the interferometers formed between the reflectors (R1-R10,) and the cleaved end of the optical fibre, recorded during the ground run detailed within the paper The unit of the "Time" column is seconds, while the units of columns R1-R10 are radians.Item Open Access FFT of square wave generation script(Cranfield University, 2018-01-29 08:55) Barrington, James; James, StephenPython 2.7 script used to create a discrete FFT of a square wave associated with our paper 'The effect of UV irradiation duty cycle on the transmission spectra of optical fiber long period gratings'Item Open Access IEEE sensors 2016 data(Cranfield University, 2016-10-21 15:17) Barrington, JamesRaw data for LPGs with periods 167 - 177 um. A single period is represented by each folder containing text files for: - baseline (pre-UV irradiation) - 1 - 6 cycles - normalised spectrum of cycle 6 (baseline - cycle 6) The text files are arranged into 2 tab separated columns for wavelength and intensity. Link to corresponding poster can be found in references.Item Open Access IEEE sensors 2016 poster(Cranfield University, 2016-10-21 15:18) Barrington, James; James, Stephen; Tatam, Ralph; Partridge, MatthewConference poster for IEEE sensors 2016 conference. Data can be found using the referenced URL.Item Open Access Intensity plot depicting the relationship between transmission and wavelength for duty cycles between 0 - 100%(Cranfield University, 2018-01-29 08:55) Barrington, JamesThe folder contains 200 text files where each 10 files is an increase in 5% UV irradiated duty cycle from 5 - 100%. Each text file is arranged into 2 tab delimited columns of wavelength and intensity. This is the raw data associated with our paper 'The effect of UV irradiation duty cycle on the transmission spectra of optical fiber long period gratings'Item Open Access Interferometric robot joint angle measurement: data(Cranfield University, 2024-01-08 14:55) Naga Narayanan Ayyappan Pillai Rajeshwari, Sivaji; Charrett, Tom; Kissinger, Thomas; Barrington, James; James, Stephen; Tatam, RalphTime series of angle measurement performed on 3 joints of a robotic arm instrumented with an array of optical fibre based angle sensors, exploiting fibre segment interferometry, Data presetned and analysed in: A fibre optic angle sensing tape for applications in robotics and automationItem Open Access Underlying data for article titled 'The effect of UV irradiation duty cycle on the 2nd harmonic coupling efficiency in optical fiber long period gratings'(Cranfield University, 2018-07-19 14:39) Barrington, James; Partridge, Matthew; Tatam, Ralph; James, StephenThis data was used to generate Fig. 3, 4, and 5 presented in 'The effect of UV irradiation duty cycle on the 2nd harmonic coupling efficiency in optical fiber long period gratings'. The data set contains transmission spectra for a 380 um period LPG with duty cycles varying from 0-100% in 5% increments. Each duty cycle contains 10 spectra. File nomenclature is "X%_duty_cycle_Y" where X is percentage of duty cycle and Y is irradiation cycle number.