Courses

Acoustics in aerospace – Numerical methods and materials characterization

Acoustics in aerospace – Numerical methods and materials characterization

15-16 April 2024

The aim of this webinar is to deal with the main criticisms related to acoustic simulation and noisesuppression in the aerospace sector. This objective is achieved by initially introducing and discussing the state-of-the-art methods and technologies that are relevant to this field.Subsequently, the fundamentals of analytical (Transfer Matrix Method) and numerical (Wave Finite Element Method) approaches are illustrated, which constitute powerful and efficient techniques to estimate the absorption and transmission properties of a sound package. Lastly, some innovative acoustic meta-material configurations are presented, based on a periodic pattern of porous unit cells, whose main homogenization models are defined and discussed too. These topics address different applications not only in the aerospace industry, but more generally in transportation(automotive, railway), energy and civil engineering sectors, where both weight and space, as well as vibroacoustic comfort, still remain as critical issues.

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    Courses

    Integration of Stealth Characteristics to Combat Aircraft Design

    Integration of Stealth Characteristics to Combat Aircraft Design

    26/27 March 14.30-16.30 CET

    Overview and General Information:

    Modern combat aircraft design is governed by signature reduction requirements, both in the electromagnetic and infrared spectra. At present it is commonly accepted to sacrifice other aspects of the design, such as aerodynamic and propulsion performance, to achieve low observability. Still, the final mission requirements might require a minimum trade-off according to the airframe mission (air dominance, surveillance, strike). In this webinar, the concept of signature reduction/control applied to combat aircraft will be discussed. Attendees will learn to quantify the performance characteristics attainable from different solutions. The basics of radar and infrared signature requirements (applied to aircraft), and their effect on final airframe shape will be analysed, considering the relative importance in current and future designs. The course will end with a trade-off analysis of some current designs.

    Learning Objectives:

    • Definition of survivability.
    • Basic of Radar Cross Section and Infrared signature.
    • Design requirements and major challenges in stealth airframe design.
    • Trade-off considerations.

    Target audience

    Doctoral and post-graduate students, aerospace and defence industry professionals, and military officers.

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      Congresses and events, Upcoming events

      IAC 2024

      IAC 2024

      11-18th October 2024, Milan

      More than 8,000 experts from industry, research, and institutions will attend the 75th International Astronautical Congress (IAC) from 14-18 October 2024 in Milan, placing Italy at the forefront of the international discussion on how space can be used to promote sustainability.

      The city of Milano will host the 75th edition of the International Astronautical Congress IAC2024, the most important world event in the space sector. Milan being selected by the more than 400 delegates of the General Assembly of the International Astronautical Federation from 73 countries of the world and gathered in Dubai from 25 to 29 October for the 72nd edition of the IAC2021.

      AIDAA President and Local Chairman of IAC 2024 Erasmo Carrera’s welcome greetings are available here.

      Congresses and events, Upcoming events

      ICAS 2024

      ICAS2024

      9-13th September 2024, Florence

      ICAS is the international organization of aeronautical engineering societies with members from 30 countries. The International Congress is every two years and covers all aspects of aeronautical science and technology and applications to aviation. ICAS 2024 is scheduled from 9 to 13 September 2024 in Florence.

      Congresses and events, Upcoming events

      AIAA/CEAS Aeroacoustics Conference

      AIAA/CEAS Aeroacoustics Conference

      4-7th June 2024, Rome

      AIDAA is glad to announce that the 30th AIAA/CEAS Aeroacoustics Conference (Aeroacoustics 2024) will be held in Rome from 4 to 7th June 2024. The Conference represents the premier international forum for the field of aeroacoustics and provides an exceptional opportunity for scientists and engineers from industry, government, and academia to exchange knowledge and results of current studies and to discuss directions for future research.

      Congresses and events, Upcoming events

      European Business Aviation Convention & Exhibition EBACE2024

      European Business Aviation Convention & Exhibition EBACE2024

      28-30 May 2024, Geneva, Switzerland

      The 2024 European Business Aviation Convention & Exhibition (EBACE2024), Europe’s premier on-demand aircraft and advanced air mobility event is taking off at the magnificent Palexpo in Geneva, Switzerland, and the Geneva International Airport from Tuesday 28 May through Thursday 30 May 2024.

      The EBACE is a premier event and the annual meeting place for the European business aviation community. The exhibition brings together business leaders, government officials, manufacturers, flight department personnel, avionics firms, fractional providers, charter/lease companies and all manner of people involved in nearly every aspect of business aviation.

      Congresses and events, Upcoming events

      4th Aerospace PhD-Days

      4th Aerospace PhD-Days

      6 - 9 May 2024, Scopello (TP)

      The fourth edition of the Aerospace PhD-Days will be held in Scopello (TP), Sicily, from the 6th to the 9th of May 2024.

      During the congress, PhD students will have the possibilities to share their activities to the colleagues all over the world and, thus, to create a net of the International young researchers; moreover, it will be possible to have a complete overview of the whole research activities in Aerospace.

      The Aerospace PhD-Days are open to any PhD student in Aerospace Science and Engineering or with a PhD topic in the aerospace field. PhD graduated in 2024 are welcomed too. In order to participate, an extended abstract (4 pages) on the PhD topic or part of it must be submitted.

      The main topics will be related to aeronautics, space, and aviation.

      Courses

      Identification and non-destructive characterization of defects and damage in aerospace composite structures

      Identification and non-destructive characterization of defects and damage in aerospace composite structures

      23/25 January 15-18 CET

      Fiber-reinforced polymeric (FRP) composites are high-performance materials used in the aerospace industry due to their excellent fatigue resistance, durability, and high stiffness- and strength- to weight ratios. Composites allow the design of lightweight structures with tailorable properties that minimize energy usage and contaminant emissions. These materials are currently utilized in fuselages, wings, tails, doors, and interiors of modern aerospace structures.

      Despite the excellent mechanical properties, adoption and certification of composite aerospace structures is a challenge primarily due to (1) the current knowledge gap in the technology, manufacturing, process-induced defects, maintenance and repair methods for aerospace-grade FRP composites, and (2) the complex and highly varying behavior and damage formation/evolution of these materials.

      This course discusses some of the main challenges for the use of composite materials in aerospace applications, emphasizing four main aspects: manufacturing defects and signatures, identification of defects via non-destructive evaluation (NDE) methods, effect of defects on the mechanical performance, and NDE for assessment of structural integrity.

      The current manufacturing techniques for fabricating aerospace-grade FRP composite structures are discussed. The common defects associated with these methods (e.g., fiber and ply waviness, voids/porosity, inclusions, resin-rich regions) are reviewed, and the effect of these manufacturing defects on the strength and life of composite structures is analyzed. The state-of-the art techniques for identifying and characterizing defects in aerospace structural components using NDE methods are discussed, giving particular attention to ultrasonic testing, guided waves, infrared thermography and X-Ray computed tomography. Finally, the current challenges for assessing structural integrity of aerospace composite structures via NDE techniques are presented and the main areas of opportunity in this field are highlighted.

      MODULE 1 – Manufacturing Defects and Signatures (90 minutes)

      1. Overview of composite materials systems used in the aerospace industry.
      2. Manufacturing processes for aerospace composite materials.
      3. Defects developed during the manufacturing processes.

      MODULE 2 – Non-destructive Evaluation Methods (90 minutes)

      1. Non-destructive evaluation (NDE) techniques for the detection and characterization of defects in the aerospace industry.

      MODULE 3 – Effect of Defects (90 minutes)

      1. Experimental and modeling approaches for predicting the effect of defects on the damage modes and mechanical performance of composites.

      MODULE 4 – Structural Integrity Assessment using NDE Methods (90 minutes)

      1. Damage developed in composites during operational life.
      2. NDE methods for assessment of structural integrity of composite structures.

      Learning objectives

      At the end of this course, the attendees should be able to:

      1. Explain the difference between thermoplastic and thermoset polymer systems, in terms of the microstructure and mechanical properties.
      2. List the main applications of carbon fiber reinforced polymeric (CFRP) composites in aerospace structural components.
      3. Explain the different manufacturing methods for fabricating aerospace-grade composite materials, and identify the advantages and disadvantages of each of these techniques.
      4. Describe the common defects in CFRP composites developed during the manufacturing.
      5. Describe the needs, constraints and outcomes of NDE inspections in the aerospace field.
      6. Understand the physical principles and basic implementation of the presented NDE techniques (i.e., ultrasonic testing, ultrasonic guided waves, infrared thermography, X-ray computed tomography).
      7. Assess the effect of manufacturing defects on the mechanical properties, strength and life of composite structures.
      8. Describe damage formation and/or evolution in CFRP due to fatigue, impacts and environmental conditions.
      9. Assess advantages and limitations of NDE techniques with respect to specific defects and damages in the aerospace field.

      Target audience: undergraduate, graduate and doctoral students, academic and non-academic professionals. CTNA-Cluster Exploore Marche members.

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        Courses

        Numerical modelling of hypersonic flows

        Numerical modelling of hypersonic flows

        13 December 9-18 CEST

        This webinar Introduces the fundamentals of thermochemical modeling and numerical simulation of high-temperature hypersonic flows in the laminar and turbulent regimes.

        Syllabus

        • Introduction to hypersonic flows
        • Properties and thermophysical modeling of high-temperature flows
        • Compressibility effects on high-speed turbulence
        • Classical shock-capturing schemes
        • High-order numerical schemes for compressible turbulent flows

        Target audience

        This webinar is addressed to graduate/undergraduate engineering students, aerospace Ph.D. students.

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          Courses

          Tethers in Space: deorbiting and power generation

          Tethers in Space: deorbiting and power generation

          20 November 10-12 CEST

          The Space Tether consists of a complex structure where there are three main parts: 1) the primary satellite; 2) a secondary
          satellite; 3) a cable (of variable lengths) that is used to join the two spacecraft together. This cable allows the transfer of energy and momentum between the two spacecraft, and this transfer can be present in both directions and, in some cases,
          can switch direction. Space tethers can be classified into two different areas: Passive tethers, which are used simply for mechanical connection and mainly transfer momentum from one part to the other; and Electrodynamic tethers, conductive wires or tapes or more complex structures), in which an electric current can flow and pass from one end to the other. The simplest application involves using the tether system as a de-orbit system; a drag Force is induced on the tether due to its relative motion with respect to the rotating plasma and the satellite.
          An opposite application is the injection of electric current from one satellite which has an effect opposite to the deorbiting;
          this effect can be used to increase the SMA of the system or produce movements in the orbital plane. The Electrodynamic tether is a system that can act as an orbital control for small and relatively big structures (depending on the tether length and on the produced current). Even if the tethers’ dynamics (passive or electrodynamic) are complex and not at all completely understood, the current knowledge in materials and technology is bridging the gap between theory and extensive application in current Space missions.

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