Acoustic and Vibration Modeling

Intertek BSS-NAV uses modern computer modeling tools to analyze and visualize the predicted acoustic and vibration conditions of our projects. We can provide detailed predictions of interior and exterior sound propagation using 3-D computer modeling software. Our exterior acoustic models provide insight for designers to select building enclosures and noise control for mechanical systems to meet the project’s acoustic goals on the project site or for the community.

Interior acoustic models help to predict a wide range of acoustic characteristics within rooms and spaces to help with the shaping of rooms, selection of acoustic finishes, and placement and directivity of loudspeakers to optimize the sound for the occupants. This process assists the ownership and design teams with how various design options may affect the future acoustic conditions in these rooms.

Vibration modeling helps to predict whether vibration will be feelable within the building and whether it is likely to disturb the occupants or exceed project goals, such as acceptable levels for vibration sensitive equipment. Vibration model results can also be used to predict whether the vibration will be perceptible as groundborne or structureborne noise. Results from the vibration modeling provide the design team with insights towards modifications that can be made to the structure to reduce vibration, if needed. Finally, vibration modeling helps evaluate the effectiveness of structural design modifications to achieve the project goals.

Visualization of the modeling results allows design teams to better understand the predictions of the future acoustic and vibration environment and address acoustic and vibration issues in the early stages of a project’s design.

Modeling helps to answer questions such as:

• How does the shaping of walls or ceilings affect the reflections of sound within the space?
• What acoustic finishes should be included to optimize the acoustic conditions?
• How will noise from mechanical systems affect the intelligibility of sound within our space?
• Will my space have echoes or be overly reverberant?
• Will my project be impacted by vibration from nearby transportation (trains, freeway, etc.)?
• Will my sensitive equipment be affected by unwanted levels of vibration?