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1. Identity statement Reference Type Journal Article Site mtc-m21c.sid.inpe.br Holder Code isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S Identifier 8JMKD3MGP3W34R/3SMPMGE Repository sid.inpe.br/mtc-m21c/2019/02.07.15.47   (restricted access) Last Update 2019:02.07.15.47.15 (UTC) administrator Metadata Repository sid.inpe.br/mtc-m21c/2019/02.07.15.47.15 Metadata Last Update 2021:01.03.02.11.22 (UTC) administrator DOI 10.1155/2019/6708450 ISSN 1687-5966 Citation Key VasconcelosLeiKusRobLop:2019:PhSoSt Title Store separation: photogrammetric solution for the static ejection test Year 2019 Access Date 2024, Oct. 31 Type of Work journal article Secondary Type PRE PI Number of Files 1 Size 28814 KiB 2. Context Author 1 Vasconcelos, Luiz Eduardo Guarino de 2 Leite, Nelson Paiva Oliveira 3 Kusumoto, André Yoshimi 4 Roberto, Leandro 5 Lopes, Cristina Moniz Araújo Group 1 DIDSA-CGCPT-INPE-MCTIC-GOV-BR Affiliation 1 Instituto Nacional de Pesquisas Espaciais (INPE) 2 Instituto de Pesquisas e Ensaios em Voo (IPEV) 3 Instituto de Pesquisas e Ensaios em Voo (IPEV) 4 Instituto de Estudos Avançados (IEAv) 5 Instituto Tecnológico de Aeronáutica (ITA) Author e-Mail Address 1 luiz.guarino@inpe.br Journal International Journal of Aerospace Engineering Volume 2019 Number 6708450 History (UTC) 2019-02-07 15:48:08 :: simone -> administrator :: 2019 2021-01-03 02:11:22 :: administrator -> simone :: 2019 3. Content and structure Is the master or a copy? is the master Content Stage completed Transferable 1 Content Type External Contribution Version Type publisher Abstract The process of developing and certifying aircraft and aeronautical systems requires the execution of experimental flight test campaigns to determine the actual characteristics of the system being developed and/or validated. In this process, there are many campaigns that are inherently dangerous, such as the store separation. In this particular case, the greatest risk is the collision of the store with the fuselage of the aircraft. To mitigate the risks of this campaign, it is necessary to compare the actual trajectory of a separation with its simulated estimates. With such information, it is possible to decide whether the next store release can be done with the required safety and/or whether the model used to estimate the separation trajectory is valid or not. Consequently, exact determination of the trajectory of the separation is necessary. Store separation is a strategic, relevant, and complex process for all nations. The two main techniques for determining the quantitative store trajectory data with 6DoF (six degrees of freedom) are photogrammetry and instrumented telemetry packages (data obtained from inertial sensors that are installed in the store). Each presents advantages and disadvantages. In regard to photogrammetry, several market solutions can be used to perform these tests. However, the result of the separation trajectory is only obtained after the test flight, and therefore, it is not possible to safely carry out more than one on the same flight. In this context, the development and validation of a solution that will allow the realization of near real-time separation analysis are in fact an innovative and original work. This paper discusses the development and validation, through actual static ejection tests, of the components that will compose a new onboard optical trajectory system for use in store separation campaigns. This solution includes the implementation of a three-dimensional (3D) calibration field that allows calibration of the optical assembly with just one photo per optical assembly, development of a complete analytical model for camera calibration, and development of specific software for identification and tracking of targets in two-dimensional (2D) coordinate images and three-dimensional (3D) coordinate trajectory calculation. In relation to the calibration, the analytical model is based on a pinhole type camera and considers its intrinsic parameters. This allowed for a mean square error smaller than +/- 3.9 pixels @1 sigma. The 3D analysis software for 6DoF trajectory expression was developed using photogrammetry techniques and absolute orientation. The uncertainty associated with the position measurement of each of the markers varies from +/- 0.02mm to +/- 8.00mm @1 sigma, depending on the geometry of the viewing angles. The experiments were carried out at IPEV (Flight Test Research Institute)/Brazil, and the results were considered satisfactory. We advocate that the knowledge gained through this research contributes to the development of new methods that permit almost real-time analysis in store separation tests. Area MET doc Directory Content access source Directory Content there are no files agreement Directory Content agreement.html 07/02/2019 13:47 1.0 KiB  4. Conditions of access and use Language en User Group self-uploading-INPE-MCTI-GOV-BR simone Visibility shown Read Permission deny from all and allow from 150.163 Update Permission not transferred 5. Allied materials Linking Trabalho não Vinculado à Tese/Dissertação Next Higher Units 8JMKD3MGPCW/43SRC6S Dissemination WEBSCI; PORTALCAPES; SCOPUS. Host Collection urlib.net/www/2017/11.22.19.04 6. Notes Empty Fields alternatejournal archivingpolicy archivist callnumber copyholder copyright creatorhistory descriptionlevel e-mailaddress format isbn keywords label lineage mark mirrorrepository month nextedition notes orcid pages parameterlist parentrepositories previousedition previouslowerunit progress project readergroup resumeid rightsholder schedulinginformation secondarydate secondarykey secondarymark session shorttitle sponsor subject targetfile tertiarytype url 7. Description control e-Mail (login) simone update

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