Proceedings Name最新文献

{"title":"SIVOR: A Testbed for the Evaluation of On-Off Valves on an F16 Airplane - Viability Analysis","authors":"Guilherme Sartori Natal, Emilia Villani, Petter Krus","doi":"10.3384/ECP1815617","DOIUrl":"https://doi.org/10.3384/ECP1815617","url":null,"abstract":"","PeriodicalId":354871,"journal":{"name":"Proceedings Name","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116124848","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":"Design of an Experimental Workbench for Force Control Tests with Pneumatic Actuators","authors":"R. Goergen, M. Porsch, Marianna Gioppo de Souza, L. A. Rasia, A. C. Valdiero","doi":"10.3384/ECP1815652","DOIUrl":"https://doi.org/10.3384/ECP1815652","url":null,"abstract":"The need of the use of mechatronic systems and manipulator robots performing tasks of precision and repetitiveness in the most diverse areas of industry, agriculture and services, require in some situations the contact between the manipulator and the environment, in the desired and programmed movements for the execution of robotized work. These situations, of contact of the mechanism and / or final effector with the environment, are characterized in a problem of force control. Pneumatic actuators are used for interaction between the robot and the environment, due to controllable stiffness. It is perceived that due to the compressibility of the air, it is more advantageous and safer in applications involving the risk of accidents and the need to limit the forces of interaction with the environment. The main objective of this paper is to show the design of an experimental workbench for position control and force control for pneumatic actuators. The used methodology is based on phases that can be named as Need Analysis, Conceptual Design, Preliminary Design, Detail Design, Prototype Construction, Test and Evaluation; and Final Documentation. The experimental prototype is being developed and tested at the Innovation Center for Automatic Machines and Servo Systems (NIMASS) in UNIJUÍ University (Brazil), which has adequate computational and experimental infrastructure for the construction of a bench of tests to verify and to validate the performance of the modeling and control of force on pneumatic actuators. It is concluded that the developed workbench can contribute to the study of the modeling and design of pneumatic systems applications in machines. Theoretical and experimental knowledge enhances the development of innovations and the transfer of technology to the productive sector.","PeriodicalId":354871,"journal":{"name":"Proceedings Name","volume":"86 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114265044","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":"Hardware-in-the-loop Simulation of Complex Hybrid Hydromechanical Transmissions","authors":"L. Larsson, P. Krus","doi":"10.3384/ECP1815669","DOIUrl":"https://doi.org/10.3384/ECP1815669","url":null,"abstract":"Fuel efficiency and environmental concerns are factors that drive the development of complex solutions for propulsion in heavy working machines. Although these solutions, such as power-split hydrom ...","PeriodicalId":354871,"journal":{"name":"Proceedings Name","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128972785","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":"Proposal of an Autonomous System for Inspection of Structures","authors":"Aristeu José de Oliveira, Gabriel Silva, Arthur Rizzi Gama da Silva, R. Lins","doi":"10.3384/ECP181561","DOIUrl":"https://doi.org/10.3384/ECP181561","url":null,"abstract":"Inspection of defects in civil infrastructure has been a constant field of research. The enlargement of a crack, along the time, can increase the deterioration of the structure, which can result in slight problems on the material's surface until, in the serious case, the rupture of the concrete structure. In the current operational paradigm, a technician is responsible to go physically to the field in order to measure cracks in the structures. However, in terms of efficiency, the manual inspection presents many problems, such as the low accuracy of measurements taken in the field and problems for accessing high-rises, narrows places, nuclear plants, among others. Hence, the current project developed at the Federal University of ABC aims to develop a fully autonomous system capable to automate the crack measurement detection and measurement process. The proposed system uses a set of robots capable to navigate and process data by itself, ground and aerial platforms, machine vision algorithms embedded into a processing device and a remote station in order to manage all the tasks to be done. In the current proposal, the ground platform adopted is the Turtlebot 2 ®, which uses an embedded computer to process the programs. The aerial platform to be adopted is an eight-engine drone octocopter that will make use of the flight controller Pixhawk 2.1 ®. Both of them will be integrated and controlled from the network interconnection of several programs, such as mapping, navigation, and image processing programs. Thus, simulations will be performed by using the Gazebo ® program and the Robot Operating System ®, wherein the system will be exposed to the real situations to evaluate the system efficiency. As result, once the autonomous system detects cracks, the embedded vision system algorithm must be able to process the image and assess the type and the damage caused to the inspected structure.","PeriodicalId":354871,"journal":{"name":"Proceedings Name","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130124432","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":"A Proposed Framework to Identify Digital Transformation Maturity in Small Industries","authors":"Lais Santiago da Costa, Luciana Pereira, A. Akkari","doi":"10.3384/ECP1815630","DOIUrl":"https://doi.org/10.3384/ECP1815630","url":null,"abstract":"Over the last decade, the landscape for business has become more dynamic. There are several variables that contributes to it, mostly directly related to technological innovation. One of these phenomena is the digitalization, that enables information to be processed universally, in high speed and relatively low costs, while the cycle gets globalized reducing multiple barriers. Inside this process, companies start to interact with technologies using new platforms, that’s when business begins its digital transformation, by implementing new digital technologies, which modifies the relationship with components of the entrepreneurial ecosystem, affecting internal scenarios and spheres of relations outside. Thus, it is relevant to understand how companies can embrace digital transformation as an opportunity to innovate, differentiate and growing. Therefore, in this paper we ask if there is a tool that could help innovation managers to evaluate the company’s maturity regarding digital transformation? To answer this question, we have been proposed a framework that can identify in which part of the organizational structure innovations have been present. In addition, it can establish the achieved level of maturity. For that, the methodology applied began by developing a digitalization management framework, with seventeen questions concerning eight organizational dimensions and the adoption of technological innovations. The framework passed by an evaluation process and went available for collecting data of small enterprises through digital survey platform, sent by e-mail. The framework application permitted us to characterize 346 companies in São Paulo, from those 77 were industries, our focus on this paper. The results showed that not even one industry was characterized fully digitally transformed, most of all stayed in primary levels of maturity. It is possible to conclude that the framework can be applied in companies of diverse segments, size and locality. Its execution can be helpful for organizations themselves, serving as a basis for creating actions and plans that facilitate their evolution","PeriodicalId":354871,"journal":{"name":"Proceedings Name","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125914918","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":"Development and Construction of an Instrumented Workbench for Characterization of Hydraulic Motors","authors":"Luís Carlos Wachholz, A. C. Valdiero, L. A. Rasia","doi":"10.3384/ECP1815640","DOIUrl":"https://doi.org/10.3384/ECP1815640","url":null,"abstract":"This work addresses the design and construction of an instrumented workbench for characterization tests of hydraulic motors. The main objective is the workbench construction for future characterization of a gerotor hydraulic motor with proportional directional valve. The gerotor hydraulic motor has as advantage to work in a situation of low rotation and high torque. The workbench must be able to identify the characteristic parameters of the dynamic model, besides the elaboration of experimental curves involving flow, pressure, rotation and torque, depending on the variation of the applied load. The workbench basically consists of a gerotor hydraulic motor, proportional valves, valve amplifier, sensors and a hydraulic power unit. The mathematical modeling of hydraulic system involved in this motor drive provides valve spool dynamics, dead zone non-linearity, valve orifice flow, pressures dynamics, static and dynamic friction and angular movement dynamics. The mathematical modeling of dynamic systems is important in machine design, because it allows predicting problems and opportunities for optimization of constructive parameters through computational simulations, which, together with experimental laboratory practices, allow the validation of the behavior of its variables in machine and equipment prototypes in conditions similar to those found in the field. Considering the experimental data to be obtained from the workbench, simulating the real operating conditions and the dynamic modeling, it will allow us a systematic analysis of the rotation, torque and pressure behavior, which allows to properly size the input parameters, identify critical points of and propose solutions. This workbench will contribute to the research and development of innovative technologies for use in proportional hydraulic systems, facilitating rotation and torque control and optimizing energy use.","PeriodicalId":354871,"journal":{"name":"Proceedings Name","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124503785","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":"Predictive Control Design Based on System Identification of an Electro-hydraulic Actuator Applied to Brazilian Sounding Rockets and Microsatellite Launchers","authors":"Thiago Scharlau Xavier, E. G. Barbosa, L. Góes","doi":"10.3384/ecp1815663","DOIUrl":"https://doi.org/10.3384/ecp1815663","url":null,"abstract":"This paper presents the modeling and control design to new hydraulic actuator being developed for thrust vector assembly applied to Brazilian rockets. Traditionally PID controllers are used for this issue but based on discrete models is proposed a new digital control for best performance. It is based on models obtained from closed-loop system identification of a Brazilian electro-hydraulic actuator using Nitrogen pressure-fed system applied to Sounding Rockets and Microsatellite Launcher (VLM). The vehicles are developed at the Aeronautics and Space Institute (DCTA/IAE) and a new actuator under test is being proposed using Helium gas to the Pressure-Fed-System. Traditionally the Nitrogen gas is used in low pressure operation to feed hydraulically the actuator and a new controller is being implemented to improve the system performance. Simulations developed in AMEsim and Matlab codes show best performance using Helium gas dealing on fast movements to the high pressure hydraulic cylinder, increasing the system bandwidth. The modeling of the hydraulic actuator is presented for linear and nonlinear analysis as well as their influences on system identification algorithms. The fluid flow through the internal pipes and spool are modeled using its nonlinear flow equation while the spool linear dynamics are obtained from Newton’s law and the magnetforce from Biot-Savart law. Discrete models are obtained from system identification using experimental data from the hydraulic closed-loop operation while a digital controller is designed based on that discrete models and finally implemented in the loop. A real-time electronic system with digital-to-analog and analog-to-digital converters performs the digital control, using Labview programming environment. The linear and nonlinear dynamics associated to each sub-system are discussed and simplifications hypotheses are presented in order to obtain the Low Order Equivalent System (LOES) to the entire hydraulic actuator, as well as the influences on the predictive control strategy and linear system identification. According to results in time and frequency domain the performance attends the rocket design requirements.","PeriodicalId":354871,"journal":{"name":"Proceedings Name","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121415525","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":"Proposed Business Model of a Microlearning-based Platform for Continuing Professional Education of Industry Members","authors":"José Ricardo Mendes dos Santos Gerbaudo, Ricardo Gaspar, Carla Marangoni De Bona, Nicolas Laur Oliveira Camara Cesar, Gabriel Florêncio Alves","doi":"10.3384/ECP1815646","DOIUrl":"https://doi.org/10.3384/ECP1815646","url":null,"abstract":"The increasing mobility of people, objects and information resources opens up new perspectives for teaching and learning processes, especially for people who carry out their work while being mobile. This research proposes a business model innovation (BMI) in e-learning through a microlearning-based platform for continuing education of professionals. Microlearning is a type of learning based on micro content, that consists of fragmented multimedia content that provides quick responses to an idea envisioned in a previously well-delineated and purposeful scope. Such content may also be used to deal with broad and / or complex subjects by using chaining or sequencing techniques, so the fragments are grouped in a chronological fashion to create a broader idea on the topic being studied, and each fragment must be independent from each other. In addition, this content format has high power to hold the audience's attention and motivate the viewer's engagement. When people are looking for quick answers in video tutorials, they typically skip ahead at intervals of the video timeline until they find the stretch that contains the solution they need. For this reason, the format design of the videos consists of presenting the quick solution at the beginning, then a more detailed demonstration of the solution, accompanied by the theoretical conceptualization when necessary for its understanding. The proposed platform breaks the paradigm of the strongly structured and static teaching-learning process, bringing the possibility of dynamic and personalized reorganization of micro contents.","PeriodicalId":354871,"journal":{"name":"Proceedings Name","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128208207","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":"Overview of the Digital Hydraulic Actuator (DHA) Concept for Aircraft","authors":"Ivan Jr. Mantovani, Vinícius Vigolo, H. C. Belan, V. Negri","doi":"10.3384/ecp1815622","DOIUrl":"https://doi.org/10.3384/ecp1815622","url":null,"abstract":"Research of new conceptions for aircraft actuators are gaining prominence, mainly due to the low energy efficiency of the current dominant systems in the sector. More Electrical Aircraft – MEA is a concept that has guided the realization of several researches on electro-mechanical (EMA) and electro-hydrostatic actuators (EHA). Airbus A380 and Boeing 787, for instance, present some innovations with origin in these researches. However, for safety reasons, the primary control surfaces are normally driven by conventional servo-hydraulic systems, which leaves this subject open to new researches. Presented this scenario, the Laboratory of Hydraulic and Pneumatic Systems – LASHIP, the Division of Fluid and Mechatronic Systems – FLUMES, and the Svenska Aeroplan AB – SAAB started the development of a new conception of flight surface actuation, applying digital fluid power strategies, thus appointing the Digital Hydraulic Actuator – DHA. In this scope, this abstract aims to present all the steps of the DHA development, furthermore, shows the research’s status and future challenges to bring closer academic studies with the aero industry. The extended abstract was organized through a timeline with all publications about the DHA concept written by these research groups. Also, the existing research project is presented, where the goals are the solution of intrinsic problems of the digital hydraulic systems and the reliability analysis of this concept.","PeriodicalId":354871,"journal":{"name":"Proceedings Name","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116821859","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 Cooperation Model Between Industry, University, Research Center and Government for the Scheduling of Technologies","authors":"Jayson Luis da Silva Ribeiro, Anderson Ribeiro, Ricardo Gaspar","doi":"10.3384/ecp1815626","DOIUrl":"https://doi.org/10.3384/ecp1815626","url":null,"abstract":"","PeriodicalId":354871,"journal":{"name":"Proceedings Name","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133516576","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}