Are your customers expecting quieter products? Are competitors gaining ground by using sound quality as a differentiator? Will tighter noise regulations impact your product sales? Would you like to decrease the time spent on predicting sound fields or shave off weeks on complex jobs like engine run-ups?
Acoustic software can help you conquer these challenges. Simcenter offers interior and exterior acoustic simulation within an integrated solution that helps you make informed decisions during the early design stages so you can 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.
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 easily used to solve exterior acoustics problems as well, such as for noise radiation analysis for powertrain components like air induction systems or gearboxes.
Boundary Element Method
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.
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 vehilce’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.
Performing acoustic simulations up to high-frequency ranges is not always possible with standard finite element method (FEM) and boundary element method (BEM) technologies. Ray Acoustics allows you to competently and accurately perform acoustic analysis for high frequencies and allows you to efficiently and accurately perform various audio and in-vehicle acoustic comfort simulations, covering the entire hearing frequency range. Parking sensors and nearfield ADAS sensors are a good example use case where ray acoustics can help you quickly assess performance of these ultrasonic transducers and sensors which operate at frequencies of 40 kHz and beyond.