New Products
UC-win/Road Noise Simulation Option New
3D Real-time VR Software

To be released February, 2011 Simulation

Overview of UC-win/Road Noise Simulation Option
This option is for the simulation of noise production in general by locating the sound source and for receiving sound on UC-win/Road. Sound pressure level calculation can be performed by considering the effect of ground surface and buildings.

Functions and features
Noise Simulation option consists of Pre-processor (for data input), main processor (for simulation) and Post-processor (for presenting result).

Considering the reduction of the operation workload such as model placement, complicated noise simulation has been enabled through few operation steps and the configuration of simulation specifications. As for the placement of the sound source, configuration is completed only by selecting arbitrary model, toggling sound on or off and selecting characteristics of the sound source. As for the placement of sound receiving point, multiple points can be placed along an arbitrary road at once, for example, as well as placing the point one by one. In addition, it has a convenient function, which allows searching sound sources and receiving points in wide area.

Main processor
The product provides you with abundant analysis option varying from general setting to advanced configuration.
It allows you to obtain precise analysis results according to wide variety of purposes.
In addition, the main analysis content in this main processor is as follows.

  1. To determine the number and order of diffraction, reflection, penetration and attenuation of each radiation path
  2. Fading of sound pressure level according to the distances between the sound source position and the sound receiving point
  3. Allowance of frequency weighting characteristics.
    *A characteristic is the coefficient for correcting data collected by sound pickup device for human beings to hear.
  4. To combine the frequency of sound pressure level for each sound receiving point
  5. To combine the sound pressure level when the sound of multiple paths reach the receiving point
  6. To calculate equivalent continuous A-weighted sound pressure level (1998 the Environment Agency Notification No. 64)

Rich display options help you to capture the simulation results from various viewpoints. In addition to contours and contour lines commonly used for presenting the simulation results, the option also has a unique ability: visualizing sound pressure level by grid or sphere shape.(Figure3~6)

Figure1 Locating sound source Figure2 Placing points at once
Figure3 Visualization by contours Figure4 Visualization by contour lines
Figure5 Visualization with grid Figure6 Visualization with sphere shapes

Future development
In future, we are going to enhance functions by incorporating following themes.

  1. Improved and independent main processor eyeing for using supercomputer
  2. Support of noise simulation in traffic flow simulation
  3. Support of arbitrary sound receiving plate
  4. Improved function to display simulation results

Recently noise issues have often been covered by various media. Please use Noise Simulation Option to solve your problem.
(Up&Coming 2011 Early Spring Issue)