- Aerospace Engineering: AeroAcoustics and VibroAcoustics
- Automotive Industry: AeroAcoustics and VibroAcoustics design
- Hybrid & Electric Vehicles: NVH & Acoustics
- Shipbuilding Acoustics and VibroAcoustics Engineering
- Audio & Consumer Electronic Devices Design
- NVH ( Noise, Vibration, and Harshness ) simulation services
Shipbuilding Noise Engineering: AeroAcoustics and VibroAcoustics Simulation
FEA & CFD Based Simulation Design Analysis Virtual prototyping MultiObjective Optimization
Internal noise on board marine vessels stem from any number of different sources, including engines, generators, bow thrusters, HVAC and propellers. The resulting Noise prediction models must accurately predict on board noise in cabins for different operating conditions. From large cruise ships to yachts, from frigates to submarines, many design challenges shall be addressed in the design phases of marine applications. If on the one hand the exterior noise, due to propellers, hull radiation or muffler, has to be limited for discretion or environmental reasons; on the other hand, interior noise is of concern for crew and passengers’ comfort.
AeroAcoustics
AeroAcoustics simulation try to use advanced capabilities with couple using of CFD simulation and advanced Acoustic solvers to predict accurately and efficiently the noise generated by turbulent flows. Results from an unsteady flow simulation performed with CFD codes such as MSC Cradle, Ansys Fluent, StarCCM+, AVL FIRE M, OpenFOAM and others are used by AeroAcoustics solver to compute aerodynamic noise sources.
With using AeroAcoustics simulation, our engineers can study the noise generated by any turbulent flow and the interactions between the aeroacoustic noise sources and a vibrating structure, absorbant materials or acoustic traps such as resonators.
Applications:
- Air conditioning (HVAC).
- Air distribution systems.
- Fan Noise
VibroAcoustics
In order to study the interaction of structural vibration with the fluid, it is necessary to model the acoustic behavior of the involved structural components including the conventional material for acoustic or visco-elastic media, porous or incompressible media, composite materials or active components like piezo-electric ceramics.
Enteknograte engineers offers predictive dedicated models addressing both the exterior noise radiation and the interior noise design. Among advanced and multidisciplinary combination of FEA or CFD tools and Acoustic solvers, unique methodology developed to serve the shipbuilding industry.
Enteknograte offers a Virtual Engineering approach with CFD and FEA tools such as MSC Cradle, Ansys Fluent, StarCCM+ for flows simulation and FEA based Codes such as ABAQUS, Ansys, Nastran and LS-Dyna, encompassing the accurate prediction of in-service loads, the performance evaluation, and the integrity assessment including the influence of manufacturing the components. Dependent of problem, we use ESI VA-one and MSC Actran as acoustics solver
Aerospace Engineering: AeroAcoustics and VibroAcoustics Simulation
AeroAcoustics and VibroAcoustics in Automotive Industry
NVH & Acoustics for Hybrid & Electric Vehicles
Structural Dynamics Integrity & Vibro-Acoustics Simulation for Marine & Shipbuilding Industry
Audio Device Design: Acoustic simulation for Sound Quality Analysis in Consumer Electronic Devices
NVH ( Noise, Vibration, and Harshness ) simulation services
Finite Element Analysis of Durability and Fatigue Life
Vibration Fatigue Finite Element Simulation: Time & Frequency Domain
Hydrodynamics & HydroAcoustics simulation for AIV (Acoustic Induced Vibration)
Cavitation in Propulsion Systems
Multibody Dynamics & NVH (Noise, vibration, and harshness)
Noise, Vibration & Harshness – NVH for Electric Motors
Boundary Element Acoustics
Often used for exterior acoustics problems, the boundary element method (BEM) is ideal for problems involving very complex geometry that may be a challenge to model for the FEM method. The BEM method helps simplify exterior acoustics simulation since only the outer surface mesh of the geometry is needed. This simplifies both the modeling process and reduces the degrees of freedom in the simulation model which will result in easier analysis.
Finite Element Acoustics
The finite element method (FEM) for acoustics analysis is ideal for simulating interior acoustics problems. In addition to FEM being the more efficient method in terms of solution speed, FEM acoustics lets you perform coupled vibro-acoustics analyses that take structural modes and soundproofing materials into consideration. FEM acoustics can be used to solve exterior acoustics problems as well, which is often used for noise analysis of air induction systems in powertrain.