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Workshop studies

Indoor industrial environments are particularly complex acoustic contexts. The concentration of machinery, the reverberant nature of buildings and the proximity of workstations can generate high noise levels, impacting working conditions, employee health and plant performance.

Workshop studies enable us to analyze the acoustic functioning of industrial buildings, identify noisy areas and define noise reduction solutions adapted to operating constraints. As an independent acoustic design office, SIM Engineering supports industrial companies in controlling noise in enclosed environments.

Workshop acoustics
Analysis of spatial noise decay

Workshop acoustics

Production workshops bring together numerous sound sources operating simultaneously: machines, automated lines, conveyors, auxiliary equipment or ventilation systems. The geometry of the premises, the height of the ceiling, the presence of reflective surfaces and the layout of equipment all contribute to the propagation of noise and its amplification by reverberation.

These phenomena can lead to high noise levels, poor speech intelligibility and increased exposure of personnel. A workshop acoustics study enables us to objectify these situations, understand the physical mechanisms involved and effectively guide corrective action.

Objectives of workshop acoustic studies

Workshop studies are designed to analyze the spatial distribution of noise, characterize the acoustic behavior of the building and assess the compliance of noise levels with applicable regulatory requirements. They are an essential tool for improving acoustic comfort, reducing employee exposure and optimizing the overall performance of the industrial site.

This approach can be applied to compliance projects, continuous improvement projects, workshop redevelopment or the installation of new equipment.

Acoustic mapping of workshops

The first step is to carry out a complete acoustic mapping of the workshops. SIM Engineering measures average noise levels in all work areas to identify the most exposed sectors and the machines that contribute most.

This mapping enables us to visualize the spatial distribution of noise, locate critical areas and establish an objective basis for prioritizing interventions. It also provides a clear basis for internal communication and technical decision-making.

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Analysis of spatial noise decay

The acoustic study includes measurement of the spatial decay of noise levels inside the workshop. This analysis makes it possible to assess how noise propagates with distance from sources, and to compare the results with the requirements of the decree of August 30, 1990 on noise prevention in industrial premises.

Spatial decay is a key indicator of a building’s acoustic behavior. It enables us to distinguish between problems linked to machine emissions and those resulting from the acoustic characteristics of the room itself.

Reverberation time measurement
The acoustic performance of a workshop is highly dependent on its reverberation time. A room with too much reverberation amplifies noise, increases hearing fatigue and limits the effectiveness of source reduction measures.

SIM Engineering carries out reverberation time measurements to characterize existing acoustic absorption and assess the suitability of the premises for industrial use. This analysis enables us to identify acoustic treatment requirements and to precisely size the absorption solutions to be implemented.
3D digital acoustic modeling
To complement the field measurements, SIM Engineering produces 3D digital acoustic models of the building and its sound sources. The model integrates workshop geometry, materials, machines, workstations and operating conditions.

Modeling enables us to simulate the propagation of noise within a volume, to analyze different layout scenarios and to evaluate the effectiveness of treatment solutions before they are implemented. It is an essential decision-making tool for optimizing investments and securing expected acoustic performance.
Definition of noise reduction solutions
Based on the results of measurements and simulations, SIM Engineering defines technical solutions adapted to the industrial constraints of the site. Recommendations may include acoustic treatment of walls and ceilings, insulation or enclosure of machines, installation of acoustic screens or optimization of equipment layout.

Each solution is designed on the basis of measurable objectives, taking into account operating, maintenance, safety and production constraints.
Sustainable improvement of working conditions
Workshop studies are part of a global approach to improving working conditions and industrial performance. They help to reduce ambient noise levels, improve acoustic comfort for operators and reinforce the effectiveness of noise prevention measures.

The involvement of an independent acoustic design office guarantees an objective approach, based on measurement, modeling and solution engineering, contributing to sustainable noise control in industrial environments.
Optimizing acoustics in production environments
Carrying out a workshop acoustics study enables us to understand how industrial buildings operate, and to define targeted, effective and sustainable actions. Thanks to a global approach combining field diagnostics, regulatory analyses and 3D modeling, SIM Engineering supports manufacturers in optimizing the acoustics of their workshops, in the interests of employee health and plant performance.