Proceedings of the 10th Aerospace Technology Congress, October 8-9, 2019, Stockholm, Sweden最新文献

{"title":"Considerations on Domain-Specific Architectures Applicability in Future Avionics Systems","authors":"D. Loubach, Johnny Cardoso Marques, A. Cunha","doi":"10.3384/ecp19162018","DOIUrl":"https://doi.org/10.3384/ecp19162018","url":null,"abstract":"The community related to the avionics systems domain tends to be conservative mainly due to the safety-critical requirements this kind of system has to comply with. With respect to the presented context, this paper addresses and discusses the next challenges of future avionics systems always considering the safety-critical aspects and the possibility of formal models of computation application together with domain-specific architectures. Runtime partial reconfiguration, for example, is one promising way to mitigate the increasing failure rate and thereby fulfill safety requirements. N-modular redundancy implementation with different hardware architectures is also analyzed considering reconfigurable computing.","PeriodicalId":360392,"journal":{"name":"Proceedings of the 10th Aerospace Technology Congress, October 8-9, 2019, Stockholm, Sweden","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126803262","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Swedish-Brazilian Cooperation in Aeronautics in Santa Catarina State","authors":"André Luiz Meira de Oliveira, Edemar Morsch Filho, A. Oliveira, T. Possamai, V. Negri","doi":"10.3384/ecp19162030","DOIUrl":"https://doi.org/10.3384/ecp19162030","url":null,"abstract":"In this article, the strategic view leading to the creation of a convergence center for aerospace technologies in the State of Santa Catarina, Brazil, the business and operation plans, as well as the predicted impacts in the state ́s economy are presented. Development and innovation are a result of a favorable ecosystem that nurtures the integration of technological creation, proof of concept and human resources. The transformation of new technologies in market products requires the close cooperation of R&D and academic institutions, tech companies and the market. This convergence of stakeholders is achieved by developing a common language and a sense of community, based on work and trust, built along the operation of a cycle, linking market demands to institutional offers, and multiplying the community efforts by cooperation. This is the ground, over which the SC2C.Aero, the Santa Catarina’s Center of Convergence for Aerospace Technologies, has been rooted. The center has been configured as a network of tech groups aiming at supporting fast connections and R&D&I agreements. This article reviews the operational model that executes the center’s key activities, such as the management of national and international agreements, customer and partner relationships, international matchmaking events, and a database mapping demands, offers and funding sources. The results achieved so far demonstrate the large acceptance this model received from both industry and R&D&I tech groups. These results have created visibility for the State of Santa Catarina and stimulated the expansion of the cooperation between Swedish and Brazilian institutions. Based on the center’s strategic planning, five milestones are foreseen in the annual operation of SC2C.Aero that will support Santa Catarina as a top three destiny of investments from the aerospace sector in Brazil in the future.","PeriodicalId":360392,"journal":{"name":"Proceedings of the 10th Aerospace Technology Congress, October 8-9, 2019, Stockholm, Sweden","volume":"114 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126974646","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"HUMAER: A Test-Bed Environment for Human Factors Investigations in the Aeronautic Domain","authors":"Diego Hernandez Arjoni, W. Oliveira, E. Villani, L. G. Trabasso","doi":"10.3384/ecp19162014","DOIUrl":"https://doi.org/10.3384/ecp19162014","url":null,"abstract":"This work presents the Human Factors in Aeronautics laboratory (HUMAER), from the Aeronautics Institute of Technology (ITA). This laboratory is a test-bed environment built around the SIVOR – the flight simulator with a robotic motion platform from ITA – with the purpose of evaluating the different relations among the pilot cognitive, psychological and physiological states and the aircraft’s human-computer interfaces and cybernetics. The lab is comprised of different virtual reality technology and non-intrusive physiologic sensor technology that can be installed on the pilot to monitor its psycho-cognitive state from a range of objective measures. Considering some characteristics of SIVOR’s cockpit, like the motioncueing ability and the haptics stimuli generated from the force-feedback inceptors and shakers, some of the main prospective research lines to be explored by the ITA’s team are presented according to the key technologies made available at HUMAER. To exemplify some of the current research made within the lab, some findings on pilot perception and workload evaluation from previous referenced investigations are reported.","PeriodicalId":360392,"journal":{"name":"Proceedings of the 10th Aerospace Technology Congress, October 8-9, 2019, Stockholm, Sweden","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126257115","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Analysis of the Impact of the Conclusion of the Collaborative Professional Master's Program on Embraer and ITA","authors":"P. Lourencao, Orlando Souza Net, F. Bussamra, Roberto Gil Silva","doi":"10.3384/ecp19162031","DOIUrl":"https://doi.org/10.3384/ecp19162031","url":null,"abstract":"The creation of Embraer resulted from a long-term investment of the Brazilian Government in developing the necessary conditions for designing and manufacturing airplanes in the country. In each decade after its creation in 1969, Embraer launched a different type of aircraft. In 1999, Embraer launched the program for Regional Jets ranging from 70 -110 passengers, which implied a high demand of new engineers. One alternative to cope with that was the creation of the Professional Master’s Program in Aeronautical Engineering in 2002, in partnership with ITA (Aeronautics Institute of Technology). The objective of the program has been to provide specialized knowledge to recently graduated engineers, in order to prepare them to work in multidisciplinary teams in Embraer engineering areas. The collaboration between Embraer and ITA is present from the selection process, through curriculum design up to Master’s theses. The objective of this paper is to present results of an evaluation of the impact of the Master’s Program on alumni’s performance on their work, on the company (technology, process, products, services and patents) and on the Institute. Since 2002, the program has already prepared more than 1400 students. Out of them, more than 800 are still working for Embraer (Feb 2019) and more than 400 have their Master’s theses approved. The methodology adopted in this paper consisted in interviews and surveys with former students of the program, their direct supervisors and both their industrial and academic advisors. This paper presents, as results, the most significant contributions both to the company and to ITA.","PeriodicalId":360392,"journal":{"name":"Proceedings of the 10th Aerospace Technology Congress, October 8-9, 2019, Stockholm, Sweden","volume":"240 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132272496","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Additive Manufacture at Industrial, Aeronautical and Defence Area: How to Control the Production of a Good and Some Questions Related Copyright Intellectual Property Performance at an Embargo Scenario","authors":"Juan Manuel Iglesias Pascual, J. Pascual","doi":"10.3384/ecp19162024","DOIUrl":"https://doi.org/10.3384/ecp19162024","url":null,"abstract":"One question raised in this exploratory work with focus on how assure that the Additive Manufacture, AM, let’s say 3D printing, produced part fits all the requirements, to fulfil the demands of warranty and performance to assure the proper operation of the system in that this part is included and how to perform the traceability of them. Some other important points in this discussion, regarding the digital files and the parts produced from those files or by files produced from scanned 3D parts, include among others: Copyright and Patent issues, Licensing private or Public (GPL), Creative Commons (CC). Other important topics are about customer adapted production, support licenses i.e. the AM techniques recommend by the supplier of the system to produce a specific part to fulfil the requirements of the system. Traceability of this production and Digital Right Management (DRM) since suppliers are demanded regarding the International Traffic in Arms Regulations (ITAR) and Export Administration Regulations (EAR). Embargo statements frequently are needed for humanitarian and geopolitical reasons and ensure the fulfilling dimension and scope and demands of an embargo sanction are a trick challenge. The AM could be an opportunity or a threat in this issue. The point surrounding the 4.0 industry is how to define and control the permission to copy and some kind traceability of the produced goods e.g. IoT and “IP or DOI mark”, but the ontology logical data and right technological and legal model must be defined. However, if those goods, the spare parts or additional ones, will not be controlled, they potentially could be produced by the entity or nation under embargoes sanctions or some undisclosed ally. The other concerns regarding AM solutions are about software to control in some extent the production of some good and with the possibility that the supplier of the product restrict the production at the buyer as an undeclared embargo, one option is private blockchain key shared by the supplier of the technology able to be AM, the customer and a trusted third part.","PeriodicalId":360392,"journal":{"name":"Proceedings of the 10th Aerospace Technology Congress, October 8-9, 2019, Stockholm, Sweden","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123965314","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Aerospace Electric Generator Specification and Selection - Opportunities and Challenges","authors":"A. Reinap","doi":"10.3384/ecp19162009","DOIUrl":"https://doi.org/10.3384/ecp19162009","url":null,"abstract":"The goal of this work is to specify and investigate suitability of a number of selected permanent magnet synchronous machine (PMSM) topologies to be mounted directly on a low pressure shaft (LPS) of a geared turbofan engine. The starting point of the work is to explore the status of electrical machines for more electric engine in order to study different design aspects when identifying and defining the designs. Even though the high flexibility and power density is anticipated from the system electrification the reliability is one of the most important aspects for the machine topology development and faultlessness can compromise desired performance. Large inner diameter of LPS and wide speed range are challenging the selection and specification of PMSM. The design initialisation is carried out by looking for more fault tolerant arrangements between machine windings and power converter topologies and appropriate rotor layouts that can provide excitation and constructional stability. Design space exploration is carried out on surface mounted Halbach array PMSM with distributed winding in the stator as one of the machine types that is best suited for high power density and high-speed application. Machine design aspects on modular design for faultlessness and cooling integration for enhanced thermal management and higher power density are the arguments behind the sensitivity study carried out on interior permanent magnet synchronous machine with nonoverlapping concentrated winding. Six different magnetic core materials are compared to demonstrate that thin FeSi electromagnetic steel grades improve efficiency and FeCo materials mainly torque density but the machine may remain unsatisfactory in power and efficiency.","PeriodicalId":360392,"journal":{"name":"Proceedings of the 10th Aerospace Technology Congress, October 8-9, 2019, Stockholm, Sweden","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129757830","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Prescriptive Maintenance: Building Alternative Plans for Smart Operations","authors":"H. Marques, Alessandro Giacotto","doi":"10.3384/ecp19162027","DOIUrl":"https://doi.org/10.3384/ecp19162027","url":null,"abstract":"Smart operations require the ability to generate alternative plans whenever a change in operations occurs in an unplanned manner. Alternate maintenance plans, in a highly dynamic context such as airline operations, require the ability to foresee small developments in terms of labor allocation, repairable items, and downtime, when and where they were not previously scheduled. In addition to being able to cause the disruption of the air transport network and consequent financial losses, it causes loss of trust in the company brand. Prescriptive maintenance is a potential technological response when using Artificial Intelligence to suggest alternative plans promptly so that decisionmakers can reduce the impact on air operations. This paper proposes a framework for the construction of an integrated prescriptive maintenance solution that is certifiable by using auditable methods and extensible to complex systems of other industries. The adoption of prescriptive maintenance not only enhances the use of health management systems, widely available in modern aircraft fleets that have the potential to predict the remaining useful life of items of interest, but also allows identifying more than one response alternative to conflicts of interest in the conduction of the smart operations of air transport companies.","PeriodicalId":360392,"journal":{"name":"Proceedings of the 10th Aerospace Technology Congress, October 8-9, 2019, Stockholm, Sweden","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125683341","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fault Detection and Isolation Based on Bond Graph Models: Application to an Electromechanical Actuator","authors":"Gabriel Dos Santos Sobral, L. Góes","doi":"10.3384/ecp19162028","DOIUrl":"https://doi.org/10.3384/ecp19162028","url":null,"abstract":"Driven by the rapid development towards the concept of more electric aircraft in recent years, the power-by-wire technology, especially electromechanical actuators (EMA), is being progressively adopted with the promise of bringing performance improvements for future aircraft in different areas such as weight, maintainability and fuel consumption. However, for safetycritical applications like primary flight controls, the use of EMA introduces specific issues related to the actuator’s response to failure. To that end, focusing on EMA fault diagnosis, this work proposes the development of a model-based quantitative Fault Detection and Isolation (FDI) methodology based on bond graph models. Firstly, an EMA behavioural model is created in bond graph, considering the actuator’s most common failure modes: stator winding faults, backlash, jamming, and mechanical disconnection. Next, this behavioural model is applied to create a Diagnostic Bond Graph (DBG) model, which is based on the use of virtual residual detectors, or residual sinks, for numerical residuals generation, without the need for deriving symbolic Analytical Redundancy Relations (ARRs). These residuals are then evaluated with experimentally defined thresholds for fault detection, indicating if the system behaviour has departed from the acceptable operating range. Finally, the causal and structural properties of the bond graph are used to derive a Fault Signature Matrix (FSM) through the analysis of the DBG model causal paths. The FSM is employed for fault isolation, reducing the number of fault candidates, in order to isolate the component responsible for the faulty behaviour. Simulation results, using bond graph models implemented in the 20-sim environment, show the successful detection and isolation of all EMA modelled faults using the proposed method.","PeriodicalId":360392,"journal":{"name":"Proceedings of the 10th Aerospace Technology Congress, October 8-9, 2019, Stockholm, Sweden","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122235045","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Multi-Agent Multi-Objective Deep Reinforcement Learning for Efficient and Effective Pilot Training","authors":"J. Källström, F. Heintz","doi":"10.3384/ecp19162011","DOIUrl":"https://doi.org/10.3384/ecp19162011","url":null,"abstract":"The tactical systems and operational environment of modern fighter aircraft are becoming increasingly complex. Creating a realistic and relevant environment for pilot training using only live aircr ...","PeriodicalId":360392,"journal":{"name":"Proceedings of the 10th Aerospace Technology Congress, October 8-9, 2019, Stockholm, Sweden","volume":"135 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127706678","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Machining Distortion Analysis of Aerospace Components using the Contour Method","authors":"M. Werke, Mosharraf Hossain, D. Semere, A. Wretland","doi":"10.3384/ecp19162025","DOIUrl":"https://doi.org/10.3384/ecp19162025","url":null,"abstract":"During machining the accumulated residual bulk stresses induced by previous shape forming process steps, such as forging, casting or additive manufacturing and subsequent heat treatment will be released. This may cause undesirable geometric distortions of the final component and thereby high rejection rates and costs. This problem can be reduced by adjusting process– and design parameters. This paper presents a methodology for minimizing machining distortions. The methodology is based on a combination of procedures for prediction of machining distortions, using the Contour method and procedures for adjustment of machining distortions. Practical experiences are discussed and demonstrated using an aerospace component. The methodology should be executed in close cooperation between several actors in the value chain and best results may be achieved by combining several concepts for adjustment of machining distortions. Further research in conjunction with the Contour method, adaptive fixturing and toolpath adjustment is recommended.","PeriodicalId":360392,"journal":{"name":"Proceedings of the 10th Aerospace Technology Congress, October 8-9, 2019, Stockholm, Sweden","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132097574","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}