Aircraft engine noise reduction

Fan noise is becoming the main source of aircraft engine noise for most flight phases. For electrified powertrain concepts, which rely primarily on fans to produce thrust, reducing aircraft engine noise is critical for certification and market success. Because these aircraft fly at lower altitudes and have flight routes within urban environments, noise pollution is a key concern.

In this white paper, learn how Simcenter software, part of the Siemens Xcelerator portfolio, can simulate fan noise, aiding in the design of quieter aircraft engine fans.

The impacts of aircraft engine noise

There are two main factors driving a reduction in aircraft engine noise. First, the certification process imposes limits on aircraft engine noise. The second is the impact that noise pollution has on people and animals. For example, noise can be a factor in airport infrastructure projects being rejected due to possible negative effects on the people who live in proximity to an airport. Noise pollution regulations are particularly important for the emerging urban and regional air mobility market.

Using simulation to reduce aircraft engine noise

Simulation can help you understand how different design parameters, such as rotor-stator spacing or using acoustic damping material, can reduce aircraft engine noise. The white paper walks through an example using the Advanced Noise Control Fan (ANCF), an experimental setup developed by NASA and used in the design, testing and evaluation of fan noise reduction technologies.

Download the white paper now to learn more.