空力音響シミュレーション

Noise pollution from vehicles, airplanes, trains, and heavy machinery is steadily increasing — with proven adverse health effects for people in nearby communities. Therefore, government regulations for community noise are getting more stringent in most countries. This creates significant challenges for vehicle and aircraft manufacturers forced to meet these ever increasing regulatory requirements.

Solution Briefs

Noise from aircraft jet engines during take-off is the dominant source of community noise. Government regulations of community noise are getting more and more stringent in most countries, creating significant challenges for aircraft manufacturers forced to meet these ever-increasing regulatory requirements.

Solution Briefs

As vehicle manufacturers seek to reduce the noise levels experienced by passengers, the noise due to the heating, ventilation, and air conditioning (HVAC) system becomes a target for improved acoustic performance. An HVAC system is complex, consisting of a blower and mixing unit coupled to many ducts through which air is transported to various locations, including faces and feet of front and rear passengers, as well as windshield and side glass defrost.

Solution Briefs

Governments have imposed operator and community noise regulations, and a failure in the acoustic development of a product can lead to delays and expensive countermeasures to meet those requirements. In addition, cooling fan noise acoustics is a perceived quality issue that can affect brand image and customer satisfaction. Given the regulations and growing importance of acoustic comfort in these competitive markets, there is high value in addressing cooling fan, flow-induced noise problems as early as possible during product development.

Solution Briefs