Multiple people checking the Simcenter acoustic simulation software on an iPad.

Simcenter

Acoustic simulation

Acoustic software to minimize noise and optimize sound through acoustic simulation.

Decrease the time needed to predict sound fields

Your customers expect quieter products – and the competition does not stand still – so product sound quality can be a differentiator. Tighter noise regulations can impact product sales. Simcenter acoustic simulation solutions can help decrease the time spent on predicting sound fields and can shave weeks off complex jobs like engine run-ups.

Simcenter offers interior and exterior acoustic simulation within an integrated solution that helps you make informed decisions during the early design stages. This allows you to optimize your product’s acoustic performance. A unified and scalable modeling environment combined with efficient solvers and easy-to-interpret visualization capabilities enable you to quickly gain insight into the acoustic performance of your product.

A submarine model, showing sound vibrations visual from the Simcenter software.

Acoustic simulation capabilities

Acoustic modeling

Acoustic simulations require specialized capabilities beyond standard finite element (FE) modeling capabilities. Often you need to model things like the air volume and the area where you want to measure acoustic pressures. Simcenter provides the advanced features you need, such as surface wrapping, convex meshing, mesh thickening and the ability to create hybrid (hexa-tetra) meshes, to help you accelerate acoustic meshing processes more than traditional preprocessors. The availability of various material models for both structure and fluid, and the wide variety of structural and acoustic boundary conditions and loads, allows you to efficiently set up your analysis.

3D rendering of an accoustic modelling of a car engine

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, it lets you perform coupled vibro-acoustics analyses that take structural modes and soundproofing materials into consideration. FEM acoustics can be easily used to solve exterior acoustics problems as well, such as for noise radiation analysis for powertrain components like air induction systems or gearboxes.

A visual of an acoustics analysis from the Simcenter software.

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.

Accoustic study of an engine

Aeroacoustics

Flow induced aeroacoustic noise is a significant component of the acoustic signature of a vehicle or other products. Predicting and understanding noise generation mechanisms, localizing sound sources, identifying transmission paths and predicting system acoustic response is key to good acoustic design. With Simcenter, you can reduce noise, improve sound quality and gain a competitive advantage while reducing expensive physical testing and reducing flow-induced vibrations/fatigue. Either the noise-inducing turbulent flows as well as the sound wave propagation can be resolved directly, or the flow simulation can be combined with so-called hybrid methods for sound propagation.

A visual of an aeroacoustic noise using Simcenter software.

Aero-vibro-acoustics

Create aero-acoustic sources close to noise-emitting turbulent flows as computed from a CFD solution and compute their acoustic response in the exterior or interior environment. For example, you can predict cabin noise inside cars and aircraft due to wind loads acting on the vehicle’s windows and structural body. Other applications let you evaluate noise from heating, ventilation and air conditioning (HVAC) and environmental control system (ECS) ducts, train boogies and pantographs, cooling fans, ship and aircraft propellers and more.

A visual of aero vibro acoustics from the Simcenter software.
Case study

Hyundai Motor Company

Simcenter 3D motion drivetrain tool enables Hyundai Motor Company to model the gear train with different levels of fidelity depending on analysis requirements.

Improving NVH and fuel efficiency in diesel engines
Case Study

Improving NVH and fuel efficiency in diesel engines

Société:Hyundai Motor Company

Secteur d'activité:Automobile et Transports

Lieu:Seoul

Siemens Software:Simcenter 3D Solutions, Simcenter Amesim