Actran SEA
Actran SEA
Efficient mid- and high- vibro-acoustic CAE module.
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Statistical Energy Analysis approach offers an efficient solution to study noise and vibration propagation inside large systems at mid- and high-frequencies. The global system is reduced to a set of coupled subsystems and energy balance between them is computed.
From FEA to SEA
Building a SEA model with classical approaches usually requires an access to experimental data or analytical expressions limiting the range of geometrical objects that could be handled. With Actran SEA module and its Virtual SEA approach, CAE engineers can use their existing Finite Elements vibro-acoustic models (mode shape and eigen values) to create a SEA model. Based on automatic or user-defined subsystems definition, SEA parameters are efficiently extracted from the Finite Elements model to perform sound and vibration analysis at mid- and high frequencies together with transfer path analysis regardless the availability of SEA expertise or experimental-based information. Combined with a unique frequency extrapolation method, the Actran SEA module offers the possibility to extend the frequency range validity of existing vibro-acoustic finite elements models to high frequency analysis.
Complete system vibro-acoustic performances can be predicted thanks to realistic physical excitation including spatially and frequency dependent distributed load and pressure as well as diffuse sound field and turbulent boundary layer.Sample Applications:
- Automotive: vibro-acoustic response and transfer path analysis of complete vehicle submitted to structural and acoustical loads.
- Aerospace: Vibration response and transfer path analysis of fuselage submitted to turbulent boundary layer or diffuse sound field excitations. Rocket payload integrity analysis at take-off.
- Shipbuilding: Onboard noise prediction due to machinery noise and flow induced vibrations.
- Railway: Interior acoustic comfort prediction of train coach.
- Off-road Vehicles: Cabin noise comfort prediction.
Learn more about Actran products and services at www.fft.be
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Case Studies
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Case studyFine-tuning electric car acoustics to enhance safety
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Case studyMaking solar panels ready for lift-off
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Case studyDura Automotive Systems: Actran helps evaluate spare...
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Case studyVTT technical research centre of Finland
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Case studyMcMaster University: Actran induces optimization...
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Case studyThales Alenia Space: Predicting mechanical shock...
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Case studyTenneco Inc.: Exhaust active noise cancellation
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Case studySatven: AI/ML based trimmed body NTF...
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Case studyBelgian building research institute: Actran helps...
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Case studyHow BAIC optimized car-body damping by simulation
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Case studyAirbus Defence and Space: Actran helps predict vibro...
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Case studyAlpha cabin: Evaluating acoustic properties porous...
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Case studyChina Railway Design Corporation: Attenuation predict..
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Case studyDura Automotive Systems maintains acoustic...
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Case studyAutoneum: Unleashing the new era of NVH simulation
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Case studyChina Motor Corporation: Pass-by noise sources...
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Case studySNCF trains: Travel quietly and sustainably
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Case studyGeneral Motors: Comfortable eV design, frequency shift
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Case studyMultiphysics: Efficient aeroacoustic modelling...
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Case studyAnalysis of Acoustic Behaviour of Louvers using Actran
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Case studyCNH Industrial: Actran helps reduce time...
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Case studyMarquardt: Acoustic simulation of automotive switches
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Case studyHEAD Acoustics: Using simulation to optimize...
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Case studyAirbus: Simulation optimizes acoustic liners reduces...
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Case studyEcole Centrale Lyon: Tackling jet noise adjoint wave...
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Case studySchindler: Driving elevator design through simulation
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Collateral
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BrochureActran brochure
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On-Demand Webinars
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WebinarHow to improve acoustic interior comfort?
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WebinarAddressing the future of global noise challenges
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WebinarAcoustic Radiation
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WebinarAcoustic Transparency
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WebinarHigh Frequency Vibroacoustics
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WebinarAddressing the future of global noise challenges
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WebinarVehicle pass-by noise compliance
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WebinarHow to improve acoustic interior comfort?
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WebinarDuct Acoustics
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WebinarIndustrial Context Challenges
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