The histogram the program shows once the program has finished the design process has been improved to offer a greater level of information on the global acoustic behaviour of the building. Now it is possible to inspect the receptor spaces of each class and show the results of each acoustic parameter separately.
As well as the graph, a table containing the values that are obtained has been added.
As of the 2018.i version, AcoubatBIM by CYPE allows users to import the configuration of the acoustic limits stated in the NBR 15575 code (Edificações habitacionais – Desempenho). As well as the obligatory compliance levels, users can choose whether to verify one of the acoustic performance levels described in the annex of the code (minimum, intermediate or superior).
The acoustic test database of the CSTB has been updated to add new products to the Technical equipment class.
In the 2018.g version of AcoubatBIM by CYPE, the functionality to read and interpret indoor sound sources defined in an IFC file included in the BIM model was implemented. Now, the same task has been carried out for equipment installed outside the building such as the outdoor units of VRF, Multi-split and 1x1 Split systems. These devices can be introduced in the BIM model using the air-conditioning installations program CYPETHERM HVAC.
During the import process, the application automatically calculates the values of the parameters: r (distance between the source and closest enclosure of each affected space) and D (directivity factor - Q – of the machine) corresponding to each equipment set, based on the position of the source and the geometry of the building.
Now, instead of selecting the operation of each type of equipment (continuous, intermittent or emergency), users can define these options. This way, the application can carry out a more exact interpretation of the different acoustic codes. Additionally, for each type of specific noise, users can indicate if the noise produced by each source is to be evaluated individually (heating or air-conditioning equipment) or collectively (grilles or diffusers of the ventilation system).
The configuration of the acoustic index that is used to measure noise generated by the equipment of the building has been included in the design options, amongst the general parameters of the project. Users can select one of the following global sound pressure level indices:
Furthermore, users can indicate how the absorption of the emitter space is to be calculated. This can be carried out in the design options panel or in each space of the project. If it is carried out in the latter manner, it will prevail over what is indicated in the design options. Users can choose one of the following alternatives:
As of the 2018.i version, AcoubatBIM by CYPE allows users to define sources of outdoor noise, which generally correspond to the equipment installed in the building. A product from the Acoubat database can be assigned to each type of source and users must indicate the type of noise of the machine, depending on the classes defined in the general parameters of the project.
For each outdoor equipment set, users must indicate the distance between the source and the closest enclosure of each affected space (r). Depending on the surfaces close to the source, the value of the directivity factor (Q) of the machine must be established.
The following acoustic indices have been added to the advanced search tool of the database:
As of version 2018.g, AcoubatBIM by CYPE allows users to import the configuration of the acoustic limits included in the different articles of the "Regulamento dos Requisitos Acústicos dos Edifícios".
More specifically, the following project types have been implemented:
The acoustic requirements that can be imported into the program, corresponding to the French and Italian codes, have been modified in order to include the requirements for installation noise.
In the previous version (2018.f) acoustic indices were added to the advanced search tool of the database. In the 2018.g version, two more acoustic indices have been added to this search tool:
As well as interpreting the geometry of the project, now it is possible to read and interpret indoor sound sources defined in the BIM model, this way, increasing the degree of integration of AcoubatBIM in the Open BIM workflow. The IFC entities that are recognised by the application, and can be exported to the BIM project by other Open BIM programs of CYPE, include:
Sound sources can be imported from the BIM model using this version of CYPESOUND and its corresponding versions to verify the acoustic requirements of national codes (CYPESOUND CTE, CYPESOUND RRAE and CYPESOUND DRAPDE).
