This readme.txt file was generated on 2020-06-30 by Martin Glesser (Eomys)


GENERAL INFORMATION

1. Title of Dataset: E-NVH Benchmark - Tooth Frequency Response Functions

2. Author Information
	A. Principal Investigator Contact Information
		Name: Karine Degrendele
		Institution: EOMYS ENGINEERING
		Address: 121, rue de Chanzy - Hellemmes - CS 10128 59030 Lille Cedex – France
		Email: contact@eomys.com

	B. Associate or Co-investigator Contact Information
		Name: Jean Le Besnerais
		Institution: EOMYS ENGINEERING
		
		Name: Raphael Pile
		Institution: EOMYS ENGINEERING

		Name: Paul Gning
		Institution: EOMYS ENGINEERING

		Name: Emile Devillers
		Institution: EOMYS ENGINEERING

		Name: Xin Wen
		Institution: EOMYS ENGINEERING

3. Date of data collection:
2020-01-10 for slice 3 (response on node 121 to 132)
2020-02-18 for slice 1 (response on node 97 to 108)
2020-02-20 for slice 2 (response on node 109 to 120)
2020-02-21 for slice 4 (response on node 133 to 144)

4. Geographic location of data collection: 
Lille Hellemmes, France

5. Information about funding sources that supported the collection of the data: 
EOMYS Engineering, Lille Hellemmes, France
L2EP (Laboratoire d'électrotechnique et d'électronique de puissance de Lille), Lille, France
LSEE (Laboratoire Systèmes Electrotechniques et Environnement), Béthune, France

SHARING/ACCESS INFORMATION

1. Licenses/restrictions placed on the data: Creative Commons Attribution 4.0 International

2. Links to publications that cite or use the data: 
R. Pile, J. Le Besnerais, K. Degrendele, “e-NVH Response Synthesis of Electric Motors Based on Stator Teeth FRF Measurements”, ISEF, 2019.
K. Degrendele, J. Le Besnerais, R. Pile, P. Gning, E. Devillers, “Characterization of EV/HEV NVH issues using electrical machine tooth FRF”, ISMA 2020.
R. Pile, J. Le Besnerais, E. Devillers, K. Degrendele, “e-NVH Response Synthesis of Electric Motors Based on Stator Teeth FRF Measurements”, Accepted for publication in International Journal Of Applied Sciences Engineering and Management (IJAEM), 2020.

3. Links to other publicly accessible locations of the data: Not applicable

4. Links/relationships to ancillary data sets: Not applicable 

5. Was data derived from another source? no
	A. If yes, list source(s): Not applicable 

6. Recommended citation for this dataset: 
Degrendele, Karine, Le Besnerais, Jean, Pile, Raphael, Gning, Paul, Devillers, Emile, & Wen, Xin. (2020). E-NVH Benchmark - Tooth Frequency Response Functions (Version 1.0.1) [Data set]. Zenodo. http://doi.org/10.5281/zenodo.3923716

DATA & FILE OVERVIEW

1. File List: 
envh-testbench_geometry.step: 		Geometry of the E-NVH benchmark prototype
envh-testbench_param.txt: 		Benchmark prototype parameters
mesh_stator139_ext-yoke_int-tooth.unv:	Position of the experimental mesh nodes
stator139_tootf-FRF.uff:		Measured Tooth Frequency Response Functions

2. Relationship between files, if important: Not applicable

3. Additional related data collected that was not included in the current data package: Not applicable

4. Are there multiple versions of the dataset? yes
	A. If yes, name of file(s) that was updated: 
		i. Why was the file updated? 
		ii. When was the file updated? 
From version 1.0.0 to version 1.0.1, minor corrections have been made in the file E-NVH-benchmark_tooth-frf_Readme.txt

METHODOLOGICAL INFORMATION

1. Description of methods used for collection/generation of data: 
The TFRF consists in loading a single tooth with a single load vector and measuring the response on the external yoke. However, for practical reasons, the experimental Tooth FRF are obtained by reciprocity, by impacting the external yoke with an impact hammer (ViaXys Type IH-02) and measuring the tooth response with an accelerometer (Bruel & Kjaer Type 4517) normalized by the injected force. The responses are measured consecutively on 4 slices as follows:
 - slice 3 (excitation on nodes 1 to 96 / response on node 121 to 132), measured by K. Degrendele
 - slice 1 (excitation on nodes 1 to 96 / response on node 97 to 108), measured by X. Wen
 - slice 2 (excitation on nodes 1 to 96 / response on node 109 to 120), measured by X. Wen
 - slice 4 (excitation on nodes 1 to 96 / response on node 133 to 144), measured by X. Wen
On each tooth, the responses are measured in the radial (x) and tangential (y) directions.


2. Methods for processing the data: 
The FRF are acquired with an Oros Type OR35 data acquisition system, controlled by NVGate v11.30 software. The FRF are acquired and calculated with the following parameters: 
 - N=6401 pts
 - Frequency range: [0-10k] Hz
 - Averages: 3 impacts
 - Windowing: uniform on excitation and response.

3. Instrument- or software-specific information needed to interpret the data: Not applicable

4. Standards and calibration information, if appropriate: Not applicable

5. Environmental/experimental conditions: 
The measurements have been performed at non-controlled athmospheric conditions (temperature range: [20-25] °C)

6. Describe any quality-assurance procedures performed on the data: Not applicable

7. People involved with sample collection, processing, analysis and/or submission: See authors


DATA-SPECIFIC INFORMATION FOR: stator139_tootf-FRF.uff

1. Number of variables: The .uff file contains (96x48x2) type DS58 datasets. Each datasets consists in a FRF with 6401 pts, in [m/s^2 / N]

2. Number of cases/rows: Not applicable

3. Variable List: Not applicable

4. Missing data codes: Not applicable

5. Specialized formats or other abbreviations used: Not applicable