1 The National Institutes of Science and Technology Program (INCTs) Brasília November 2010 INCT for Smart Structures in Engineering (EIE) Prof. Valder Steffen Júnior (coordinator) Prof. Domingos A. Rade (vice-coordinator) FEDERAL UNIVERSITY OF UBERLANDIA SCHOOL OF MECHANICAL ENGINEERING Structural Mechanics Laboratory Prof. José Eduardo Tannús Reis
3 MOTIVATION Aloha Airlines
4 MOTIVATION (air show) Farnborough - July 20, 2010 Credits: Boeing
6 INSTITUTE COMPOSITION Leader Institution Federal University of Uberlandia School Mechanical Engineering Structural Mechanics Laboratory Prof. José Eduardo Tannús Reis Coordinator: Prof. Valder Steffen Jr. Vice-Coordinator: Prof. Domingos A. Rade
7 INSTITUTE COMPOSITION Associated laboratories Laboratório de Aeroelasticidade, Departamento de Engenharia de Materiais, Aeronáutica a Automobilística, Universidade de São Paulo, Escola de Engenharia de São Carlos. Brazil. Laboratório de Dinâmica, Departamento de Engenharia Mecânica, Universidade de São Paulo, Escola de Engenharia de São Carlos. Brazil. Laboratório de Acústica e Vibrações, Programa de Engenharia Mecânica, COPPE/Universidade Federal do Rio de Janeiro. Brazil. Grupo Avançado de Materiais Estruturais e Funcionais, Faculdade de Engenharia Mecânica, Universidade de Brasília, Brazil. Grupo de Materiais e Sistemas Inteligentes, Departamento de Engenharia Mecânica, Faculdade de Engenharia de Ilha Solteira, Universidade Estadual Paulista Júlio de Mesquita Filho, Brazil. Laboratório Multidisciplinar de Materiais e Estruturas Ativas, Departamento de Engenharia Mecânica, Universidade Federal de Campina Grande, Brazil Laboratório de Estruturas Inteligentes e Compostos Avançados, Divisão de Engenharia Mecânica Aeronáutica, Instituto Tecnológico de Aeronáutica, Brazil.
8 INSTITUTE COMPOSITION Foreign collaborators to the Institute EIE NAME INSTITUTION Alexander Kalamkarov Department of Mechanical Engineering, Dalhousie Univerisity, Canada. Ayech Benjeddou Carlos Cesnik Daniel J. Inman Dimitris Lagoudas Laboratoire d Ingénieurie des Systèmes Mécaniques et des Matériaux, Institut Supérieur de Mécanique de Paris. Active Aeroelasticity and Structures Research Laboratory, Aerospace Engeneering Department, University of Michigan, EUA. Center for Intelligent Materials and Structures CIMSS, Virginia Polytechnique and State University, EUA Texas Institute for Intelligent Material and Structures, Texas A&M University System, EUA Fred Nitzsche Department of Mechanical and Aerospace Engineering, Carleton University, Canada. Marian Wiercigroch Centre for Applied Dynamics Reserch, School of Engineering, Universitiy of Aberdeen, Reino Unido Michael John Brennan Jarir Mahfoud Ilmar Santos Dynamics Research Group, Institute of Sound and Vibration Reserch, Southampton, UK. INSA de Lyon, France Denmark Technical University
9 COORDINATING BOARD Prof. Marcelo A. Savi (UFRJ) Prof. Vicente Lopes Jr (UNESP-IS) Prof. Flávio D. Marques (EESC-USP) Prof. Carlos de Marqui Jr (EESC-USP) Prof. Marcelo A. Trindade (EESC-USP) Dr Roberto Gil Annes da Silva (ITA) Prof. Domingos A. Rade (UFU) Vice-Coordinator Prof. Valder Steffen Jr (UFU) Coordinator 01 Petrobrás Representative 01 Embraer Representative
10 OBJECTIVES AND GOALS General objective: The general objective of the Institute EIE is the coordination of The general objective of the Institute EIE is the coordination of the research efforts of the participating groups for the production of scientific knowledge about smart structures and their effective use for the improvement of higher education and technological innovation in Brazil.
11 OBJECTIVES AND GOALS Specific objectives: Constitution of a research network gathering Brazilian and foreign researchers of various levels (professors, post-doctorate grantholders, graduate and undergraduate students), coordinated in such a way to foster interaction among the groups and maximize the use of competences and material resources. Improvement of the laboratory conditions of the participating Institutions, making them closer to the best international standards. Contribution for the high-quality education in advanced Engineering areas related to the Institute s subject, aiming at their future integration in research and higher education Institutions and companies of technological basis located in Brazil.
12 OBJECTIVES AND GOALS Specific objectives (cont.): Contribution to foster, in the Brazilian academic environment, the culture of technological innovation, which is currently found to be incipient as compared to the leading countries. Effective promotion of technological innovation by means of the development of new concepts likely to be incorporated in industrial processes and products. Contribution to the increase of the quantitative and qualitative scientific output of the participating groups. Contribution to the increase of the international visibility of the governmental policy for scientific development in Brazil. Contribution for the internationalization of the participating groups. Improvement of the cooperation between Brazilian universities and industrial companies located in Brazil.
13 INSTITUTE ACTIVITIES Research activities TITLE 1 Shape Memory Alloy Structures: Manufacturing, Characterization, Modeling and Applications COORDINATOR Prof. Marcelo A. Savi (UFRJ) 2 Robust Control and Power Harvesting using Smart Materials Prof. Vicente Lopes Jr. (FEIS) 3 Aeroelastic Active/Passive Control via Active Fiber Composites (AFCs) Coordinator: Prof.Valder Steffen Jr Prof. Flávio D. Marques (EESC/AERO) 4 Multifunctional Structures for Unmanned Air Vehicles Prof. Carlos de Marqui Jr. (EESC/AERO) 5 Active and Passive Structural Vibration Control using Smart Materials Prof. Marcelo Areias Trindade (EESC/DIN) 6 Smart Material Application in Aeroelastic Control Roberto Gil Annes da Silva (ITA) 7 Structural Health Monitoring of Metallic and Composite Structures Smart Rotors Prof. Domingos A. Rade (UFU)
14 INSTITUTE ACTIVITIES Collaboration with other INCTs: INCT of Electric Energy - INERGE (artificial intelligence for design; UAV) INCT for Space Studies INEspaço (smart materials for space structures)
15 Main Results A RESEARCH/INNOVATION INDICATORS TYPE BOOKS --- BOOK CHAPTERS 03 PUBLISHED PAPERS IN NATIONAL JOURNALS 01 PUBLISHED PAPERS IN INTERNATIONAL JOURNALS 32 ORAL PRESENTATION IN NATIONAL CONGRESSES 45 ORAL PRESENTATION IN INTERNATIONAL CONGRESSES 85 SOFTWARE 02 PATENTS (SOLICITATION) PRODUCTS 02 PROCESSES --- OTHERS : TECHNOLOGY AWARS 04 QUANTITY B HUMAN RESOURSES INDICATORS TYPE QUANTITY COMPLETED: UNDERGRADUATE RESEARCH 20 MASTERS 15 PHDS 05 POST-DOCS 05 OTHER: (UNDERGRADUATE CONCLUSION PROJECT) TCC 04 ONGOING: UNDERGRADUATE RESEARCH 27 MASTERS 21 PHDS 23 POST-DOCS 08 OTHER: VISITING PROFESSORS 03
16 Main Results Axis Aerospace Collaboration AX2- Tupã
17 Main Results Development of a piezo-aeroelastic numerical model both in the time and frequency domains for simulation and analysis. Development of a piezo-aeroelastic model for a typical aeroelastic section with two degrees of freedom and the corresponding experimental validation in a wind tunnel. Development of an airfoil with adaptive geometry. Use of MFCs as actuators for air flow control. This technique permits the recuperation of aerodynamic performance in airfoils and aircraft wings for poststall conditions. Development fabrication techniques for wires of shape memory alloys (NiTi). Fabrication of mini and micro-components of SMA through fusion plasma and injection molding. Experimental determination of the constitutive parameters for SMA actuators. A new device for measuring the electrical resistance as a function of temperature to determine the transformation temperatures of SMA is being developed by using the Peltier effect.
18 Main Results Simulation of the thermo-mechanical behavior of mechanical components and applications based on SMA using ABAQUS and ANSYS. Results have been obtained regarding the super-elastic behavior of orthodontic wires in NiTi SMA. Development of SMA active composites and nano-composites incorporating SMA. The fabrication of composites reinforced by carbon Fibers (CFRP) with embedded NiTi SMA wires was started. A complete impedance based technique for structural health monitoring dedicated to aircraft structures was developed using piezoelectric patches as sensor-actuators devices. Development of a miniaturized system dedicated to structural health monitoring of aeronautic structures based on electromechanical impedance techniques. This developments permits transferring technology from the INCT-EIE to EMBRAER.
19 Main Publications ( ) Nascimento, M. M. S. F., De Araújo, C. J. ; Almeida, L. A. L.; Rocha Neto, J. S. ; Lima, A. M. N., A mathematical model for the strain - temperature hysteresis of shape memory alloy actuators. Materials and Design, v. 30, p , De Araújo, C. J. ; Gomes, A. A. C. ; Silva, J. A. ; Cavalcanti, A. J. T. ; Gonzalez, C. H., Fabrication of shape memory alloys using the plasma skull push pull process. Journal of Materials Processing Technology, v. 209, p , Aguiar, R.A.A., Savi, M.A., Pacheco, P.M.C.L. (2010), Experimental and Numerical Investigations of Shape Memory Alloy Helical Springs, Smart Materials & Structures. doi: / /19/2/ Bessa, W.M., de Paula, A.S., Savi, M.A. (2009), Chaos Control Using an Adaptive Fuzzy Sliding Mode Controller with Application to a Nonlinear Pendulum, Chaos, Solitons & Fractals, v.42, n.2, pp De Paula, A.S., Savi, M.A. (2009), A Multiparameter Chaos Control Method Based on OGY Approach, Chaos, Solitons & Fractals, v.40, n.3, pp De Paula, A.S., Savi, M.A. (2009), Controlling Chaos in a Nonlinear Pendulum Using an Extended Time- Delayed Feedback Control Method, Chaos, Solitons & Fractals, v.42, n.5, pp Gois, S.R.F.S.M., Savi, M.A. (2009), An Analysis of Heart Rhythm Dynamics Using a Three Coupled Oscillator Model, Chaos, Solitons & Fractals, v.41, n.5, pp Kalamkarov, A.L., Hassan, E.M., Georgiades, A.V., Savi, M.A. (2009), Asymptotic Homogenization Model for Three-dimensional Grid-reinforced Composite Structures with Generally Orthotropic Reinforcements, Composite Structures, v.89, n.2, pp Machado, L.G., Lagoudas, D.C., Savi, M.A. (2009), Lyapunov Exponents Estimation for Hysteretic, International Journal of Solids and Structures, v.46, n.6, pp Monteiro Jr, P.C.C., Savi, M.A., Netto, T.A., Pacheco, P.M.C.L. (2009), A phenomenological description of the thermomechanical coupling and the rate-dependent behavior of shape memory alloys, Journal of Intelligent Material Systems and Structures, v.20, n.14, pp
20 Main Publications ( ) Oliveira, W.P., Savi, M.A., Pacheco, P.M.C.L., Souza, L.F.G. (2010), Thermomechanical Analysis of Steel Cylinders Quenching Using a Constitutive Model with Diffusional and Non-Diffusional Phase Transformations, Mechanics of Materials, v.42, n.1, pp Oliveira, S.A., Savi, M.A., Kalamkarov, A.L. (2010), A Three-Dimensional Constitutive Model For Shape Memory Alloys, submetido ao Archive of Applied Mechanics. Santos, B.C., Savi, M.A. (2009), Nonlinear Dynamics of a Nonsmooth Shape Memory Alloy Oscillator, Chaos, Solitons & Fractals. v.40, n.1, pp Savi, M.A., de Paula, A.S., D.C. Lagoudas (2010), Numerical Investigation of an Adaptive Vibration Absorber Using Shape Memory Alloys, submetido ao Journal of Intelligent Material Systems and Structures. Sitnikova, E., Pavlovskaia, E., Wiercigroch, M., Savi, M.A. (2010), Vibration Reduction of the Impact System by an SMA Restraint: Numerical Studies, International Journal of Non-linear Mechanics. doi: /j.ijnonlinmec Trindade, M. A., Benjeddou, A.. Effective electromechanical coupling coefficients of piezoelectric adaptive structures: critical evaluation and optimization. Mechanics of Advanced Materials and Structures, v. 16, p , Pagani Júnior, C.C. ; Trindade, M. A.. Optimization of modal filters based on arrays of piezoelectric sensors. Smart Materials and Structures, v. 18, art.no , Godoy, T.C. ; Trindade, M. A.. Modeling and analysis of laminate composite plates with embedded activepassive piezoelectric networks. Submitted for publication, Chegury Viana, F.A.; Maciel, B.C.O.; Neto, N.S.B.; Oliveira, M.F.; Steffen Jr, V.; Goes, L.C.S., Aircraft longitudinal stability and control derivatives identification by using life cycle and Levenberg-Marquardt optimization algorithms, Inverse Problems in Science & Engineering, v. 17, pp , 2009 Mahfoud, J.; Der Hagopian, J.; Lévecque, N.; Steffen Jr, V., Experimental model to control and monitor rotating machines, Mechanism and Machine Theory, v. 44, pp , 2009.
21 Main Publications ( ) Saldarriaga, M.R.V.; Mahfoud, J.; Steffen Jr, V., Der Hagopian, J., Adaptive balancing of highly flexible rotors by using artificial neural networks, Smart Structures and Systems, Vol. 5, Nb. 5, Viana, F.A.V.; Haftka, R.; Steffen Jr, V., Multiple Surrogates: How Cross-Validation Errors Can Help Us to Obtain the Best Predictor," Structural and Multidisciplinary Optimization, Volume 39, Issue 4, pp , 2009 (DOI: /s ). Viana, F.A.C.; Steffen Jr, V.; Butkewitsch, S.; Leal, M.F.; Optimization of Aircraft Structural Components by Using Nature-Inspired Algorithms and Multi-Fidelity Approximations, Journal of Global Optimization, Vol. 45, pp , 2009 (DOI: /s x). Da Silva, A. R. ; Silveira Neto, Aristeu ; Rade, D.A. ; Franciss, R.. Numerical Simulations of Flows over a Pair of Cylinders at Different Arrangements using the Immersed Boundary Method. Computer Modeling in Engineering & Sciences, v. 50, p , Lobato, F.S. ; Steffen Jr, V. ; Silva Neto, A. J.. Solution of inverse radiative transfer problems in two-layer participating media with differential evolution. Inverse Problems in Science & Engineering (Print), v. 18, p , Finzi Neto, R.M.; Steffen Jr, V.; Rade, D.A.; Gallo, C.A.; Palomino, L.V.; A low cost electromechanical impedance-based SHM architecture for multiplexed piezoceramic actuators, Structural Health Monitoring, 2010, DOI /
22 Main Results Divulgating INCT-EIE UFU Mechanical Engineering Seminar (Invited Lecture) 2009 Creation of a new graduate course on Smart Structures and Materials UFU National Science and Technology Week (lecture to high school students) National Congress of Mechanical Engineering Students (keynote lecture) CREEM 2010; Viçosa MG National Congress of Mechanical Engineering CONEM 2010 (Keynotes, Panel, Symposium on Smart Structures); Campina Grande - PB Creation of the Committee on Smart Materials and Structures of the Brazilian Society of Mechanical Sciences and Engineering (ABCM) INOVATEC 2010 (exposition) Invited Lecture to undergraduate students at UTFPR DINAME 2011(invited lectures) COBEM 2011 (Symposium on Smart Structures)
24 MINAS faz Ciência (FAPEMIG)
25 VIDEOS DIDÁTICOS
26 UNIVERSIDADE DE FEDERAL DE UBERLÂNDIA RESEARCH FACULDADE DE ENGENHARIA MECÂNICA (UFU) Laboratório de Mecânica de Estruturas Prof. José Eduardo Tannús Reis Coordinator: Prof. Domingos A. Rade Projects: Aircraft Structural Health Monitoring Active and Passive Vibration Control using Piezoelectric Materials Energy Harvesting Using Piezoelectric Materials SUB-PROJECT: Structural Health Monitoring Made of Composed Materials Impedance - Re Z (Ohms) Baseline Impact (15 J) Damage Metric: Frequency (KHz)
27 UNIVERSIDADE DE FEDERAL DE UBERLÂNDIA RESEARCH FACULDADE DE ENGENHARIA MECÂNICA (UFU) Laboratório de Mecânica de Estruturas Prof. José Eduardo Tannús Reis
28 RESEARCH (UFU) Laboratório de Mecânica de Estruturas Prof. José Eduardo Tannús Reis Data acquisition system. actuator Control scheme sensors measurements + K C Xˆ State Estimator actuators sensors amplifier Tension G a Tension + K r Integral feedback - + reference Instrumentation: 02 PZT stack actuators PI P Tension Amplifier PI E-472 Dspace Software: Matlab-Simulink and Controldesk SMART ROTOR TECHNOLOGY
29 RESEARCH (UFU) Laboratório de Mecânica de Estruturas Prof. José Eduardo Tannús Reis Active lateral vibration control of flexible rotors using piezoelectric actuators (stacks) PZT Stack Machinery case rubbers
30 RESEARCH UNIVERSIDADE DE FEDERAL DE UBERLÂNDIA FACULDADE DE ENGENHARIA MECÂNICA (UFU) Laboratório de Mecânica de Estruturas Prof. José Eduardo Tannús Reis Semi-active vibration control using Smart Spring Mechanism SSM is a patented concept that uses an indirect piezoelectric (PZT) stack actuation to change the stiffness and damping characteristics of the rotating machine to attenuate high vibration amplitudes. If the friction between the PZT stack and the host structure is disregarded the SSM behavior can be represented by two distinctly dynamic systems, according to the PZT stack status: 1. PZT turned off: the equivalent SSM stiffness is given by k ps + k as ; 2. PZT turned on: the active spring is unattached leading the SSM to operate only through the primary spring k ps. Note that if the friction is considered, the SSM becomes able to vary combinations of stiffness and damping at a particular location of the rotor.
31 RESEARCH (UFU) Laboratório de Mecânica de Estruturas Prof. José Eduardo Tannús Reis Semi-active vibration control using Smart Spring Mechanism Output responses measured along the z direction of the bearings x 10-3 without SSM with SSM x 10-3 without SSM with SSM 1 1 Amplitude (m) Amplitude (m) Time (s) Time (s) Bearing B 1 Bearing B 3
32 UNIVERSIDADE DE SÃO PAULO RESEARCH ESCOLA DE ENGENHARIA DE SÃO CARLOS (USP-SC) Laboratório de Aeroelasticidade Coordinator: Prof. Flávio D. Marques Researches: Prof. Carlos De Marqui Jr., Prof. Volnei Tita Projects: Aeroelastic Modeling in Nonlinear Problems; Active and Passive Aerolastic Control using piezelectric Materials and Variable Rheology Fluids SUB-PROJECT: Active/Passive Aeroelastic Control Via Active Fiber Composites (AFCs) Technological innovations in active fiber composites (AFCs) applying in aeroelastic problems. Steps: (I) Mathematical model of the mechanics of active fiber composites (AFC) and its validation (II) active aeroelastic control laws for composite materials wings with incorporated AFCs (III) study about passive AFCs as modal sensors applied to flutter predicion with the corresponding validation in a wind tunel.
33 UNIVERSIDADE DE SÃO PAULO RESEARCH ESCOLA DE ENGENHARIA DE SÃO CARLOS (USP-SC) Laboratório de Aeroelasticidade Active fiber composites (AFC) Motivation: flutter sensors, active aeroelastic control, and structural health monitoring Effective coefficients:
34 Coordinator: Prof. Carlos De Marqui Jr. SUB-PROJECT: Multifunctional Structures for Unmanned Air Vehicles UNIVERSIDADE DE SÃO PAULO RESEARCH ESCOLA DE ENGENHARIA DE SÃO CARLOS (USP-SC) Laboratório de Aeroelasticidade 1. Energy Harvesting using piezelectric materials Motivation: provide power to low energy consumption electronic systems Obtain energy sources to systems installed in remote are (such as monitoring and security systems) Provide energy to integrity structural monitoring of pipelines for gas and oil Convert vibration energy to electrical energy Converty flow energy to electrical energy (piezoaeroelasticity)
35 UNIVERSIDADE DE SÃO PAULO RESEARCH ESCOLA DE ENGENHARIA DE SÃO CARLOS (USP-SC) Laboratório de Aeroelasticidade 2 Active/Passive Vibration Control Use of piezoceramics associated with passive and active circuits aiming at reducing vibration in mechanical systems 3 Active geometry variation and flow control Active variation of airfoil geometry for the adaptation to the environment conditions (flow) by using piezoelectric ceramics and shape memory alloys to provide actuation. Desing of piezoelectric actuators dedicated to flow control Aerodynamic load control Increase the aerodynamic performance of airfoils Increase the performance of eolic generators
36 Coordinator: Prof. Marcelo Areias Trindade Projects: Active, passive and semi-active vibration control Robust design and optimization of modal filters Modeling of piezoelectric fiber composites SUB-PROJECT: Active and Passive Structural Vibration Control using Smart Materials Main lines of researches: Modeling of laminated structures containing piezoelectric materials connected to shunt circuits; Active, passive and semi-active vibration control techniques using piezoelectric materials; Development of modal sensors using piezoelectric materials for application in passive and active vibration control; Design and optimization of autonomous piezoelectric sensors. UNIVERSIDADE DE SÃO PAULO RESEARCH ESCOLA DE ENGENHARIA DE SÃO CARLOS (USP-SC) Laboratório de Dinâmica
37 UNIVERSIDADE DE SÃO PAULO RESEARCH ESCOLA DE ENGENHARIA DE SÃO CARLOS (USP-SC) Laboratório de Dinâmica Robust design and optimization of modal filters Active, passive and semi-active vibration control Modeling of piezoelectric fiber composites
38 UNIVERSIDADE ESTADUAL PAULISTA RESEARCH JÚLIO DE MESQUITA FILHO UNESP (UNESP-IS) GMSINT Coordinator: Prof. Vicente Lopes Jr. Projects: Active Vibrations Control in Non - Linear Mechanical Systems Using Fuzzy Takagi- Sugeno Models and Linear Matrix Inequalities; Modeling of Smart Structures and Development of Methods for Energy Harvesting. SUB-PROJECT: Robust Control and Energy Harvesting Using Smart Materials
39 UNIVERSIDADE ESTADUAL PAULISTA RESEARCH JÚLIO DE MESQUITA FILHO UNESP (UNESP-IS) GMSINT Test structure: Truss with PZT patches and force sensors. Power harvesting Elemento Ativo Sensor de força PZT Barra Electric power harvesting circuit Piezoelectric material responsible for energy transformation Micromechanics technology (MEMS) wireless sensors; digital signal processors; low electric charge equipments
40 COMANDO-GERAL DE TECNOLOGIA AEROESPACIAL INSTITUTO TECNOLÓGICO DE AERONÁUTICA RESEARCH (ITA) Laboratório de Estruturas Inteligentes - LEICA Coordinator: Dr. Roberto Gil Annes da Silva Researchers: Prof. Airton Nabarrete, Prof. Luis Carlos S. Góes Projects: Dynamics and control of a nonlinear structure and under the effect of magnetrheological fluids; Dynamic and control of a nonlinear aeroelastic structure using shape memory alloys; Nonlinear aeroelasticmethodologies applied to the study of structures subject to large displacements; AeroservoelasticIndividual Blade Actuation for Controlling the Sailing Phenomenon under Steady State Flow in Helicopters. SUB-PROJECT: Smart Material Application in Aeroelastic Control
41 COMANDO-GERAL DE TECNOLOGIA AEROESPACIAL INSTITUTO TECNOLÓGICO DE AERONÁUTICA RESEARCH (ITA) Laboratório de Estruturas Inteligentes - LEICA
42 UNIVERSIDADE FEDERAL DE CAMPINA GRANDE RESEARCH (UFCG) Multidisciplinary Laboratory of Active Materials and Structures (LaMMEA) Coordinator: Prof. Carlos José de Araújo Main research results: 1. Development of the manufacture of Ni-Ti SMA (shape memory alloys) wires in Brazil to minimize importations and lead to applications; 2. Development of manufacture of mini and micro-components of SMA via the plasma fusion and injection molding and other techniques; 3. Experimental determination of constitutive parameters for modeling and simulation of SMA actuators; 4. Simulations of thermomechanical behavior of components and applications based on SMA using ABAQUS and/or ANSYS; 5. Development of active composites and nanocomposites incorporating SMA. SUB-PROJECT INCT-EIE: Shape Memory Alloy (SMA) Structures: Manufacturing, Characterization, Modeling and Applications
43 UNIVERSIDADE FEDERAL DE CAMPINA GRANDE Multidisciplinary Laboratory of Active RESEARCH Materials and Structures (LaMMEA) (UFCG) Multidisciplinary Laboratory of Active Materials and Structures (LaMMEA) Development of SMA actuators and Thermomecanical Characterization Ni-Ti SMA superelastic wires Experimental Stress-Strain Behavior Simulation Ni-Ti SMA Belleville washers Experimental Force Generation Nickel Titanium Belleville Ni-Ti washer actuator Força (kn) ,2 % Tem peratura F orça Deform ação 2,871 % F MÁX 6 KN Temperatura ( C) Deformação (%) Tem po (s) F RES 1 KN 0
44 UNIVERSIDADE FEDERAL DO RIO DE JANEIRO RESEARCH COOPE DEPT. ENGENHARIA MECÂNICA (COPPE-UFRJ) Laboratório de Acústica e Vibrações Coordinator: Prof. Marcelo A. Savi SUB-PROJECT: Shape Memory Alloy Structures: Manufacturing, Characterization, Modeling and Applications n n n n Shape Memory Alloys Constitutive modeling: macroscopic description. Applications: finite element analysis, oil and gas, aerospace. Applied Dynamics: vibration reduction, control. Experimental analysis.
45 UNIVERSIDADE FEDERAL DO RIO DE JANEIRO RESEARCH COOPE DEPT. ENGENHARIA MECÂNICA (COPPE-UFRJ) Laboratório de Acústica e Vibrações SMA DYNAMICAL APPLICATIONS Williams et al. (2002) Rustighi et al. (2005)
46 UNIVERSIDADE FEDERAL DO RIO DE JANEIRO PERSPECTIVES COOPE DEPT. ENGENHARIA MECÂNICA Significant improvement of research infrastructure of the various laboratories that participate of the present research effort. Increase of qualified scientific production and technological innovation projects. Education of young researchers that are interested on the different scientific topics encompassed by the Institute. Major interaction involving the various research groups that form the Institute and also with the international partners and other INCTs. Finally, the research team is dedicated to fulfill an important need in Brazil with respect to the study and knowledge of technologies related to smart structures.
47 UNIVERSIDADE FEDERAL DO RIO DE JANEIRO ACKNOWLEDGMENTS COOPE DEPT. ENGENHARIA MECÂNICA Obrigado!
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