at INC, we analyze noise, infrasound and vibration, as well as heat, fluids and structures. In addition to the analysis we do for our in-house product design and consulting work, we also accept outsourced analysis work. Analysis allows us to pre-evaluate the situation and quantitatively visualize the effect of certain measures.
Acoustic Analysis: Outdoor Noise Propagation Simulations
Propagation simulations are effective when looking to examine how much multiple sound sources each contribute to the surrounding area. We model the noise sources, buildings and surrounding terrain to calculate noise propagation. We can create a noise level contour of the area or determine the impact levels of each noise source at observation points along the site boundaries.
Effective for Environmental Assessments (Noise Predictions) as well as Determining, Handling and Predicting Current Noises
- Noise assessments at site boundaries (noise regulations and standards)
- Factories, plants and power plants
- Construction sites
- Work sites
- Wind farms
- Outdoor A/C units
- Cooling towers, etc.
Being able to predict the noise levels reaching the observation point and determine the impacts of each source allows for effectively treating the sources in order of impact and predicting the effect of measures
Allows input of buildings, obstacles and terrain (contour lines)
We can offer METI prediction methods for scale retail stores, ASJ CN-Model 2007 prediction methods for construction work noise, ISO 9613 international standards, Nord2000 and outdoor noise prediction methods for other countries
Acoustic Analysis: Outdoor Infrasound Propagation Simulations
Propagation simulations are effective when looking to examine how much multiple sound sources each contribute to the surrounding area. INC have developed special propagation simulation software that is used for infrasound. The software models the sound sources, buildings and surrounding terrain to calculate infrasound propagation. It can create a level contour of the area or determine the impact levels of each source at observation points along the site boundaries.
Effective for Environmental Assessments (Infrasound Predictions) as well as Determining, Handling and Predicting Current Sounds
- Factories, plants and power plants
- Construction sites
- Work sites
- Wind farms
- Stacks
- Boilers
- Diesel engines, etc.
Allows input of buildings, obstacles and terrain
Acoustic Analysis: Indoor Analysis
This analysis predicts indoor noise distribution and can give the penetration loss (amount of sound insulation), sound absorption and reflection effects of ceilings and walls. It allows for efficient study of measures such as materials and installation range for soundproofing partitions and acoustic panels.
Effective for Noise Predictions as well as Determining, Handling and Predicting Current Noises
- Placement of sound absorbing material, material considerations
- Plant work noises
- Plant machinery noises
- Offices and meeting rooms
- Wind tunnel facilities
- Engine testing facilities, etc.
Being able to predict the noise levels reaching indoor observation points and determine the impacts of each source allows us to effectively treat the sources in order of impact and predict the effect of measures
Allows input of indoor sound absorption and reflection and sound insulation of walls
Acoustic Analysis: Frequency Response Analysis / Mode Analysis (FEM-BEM Analysis)
Regarding sound as a wave, this involves a frequency response and mode analysis using the finite element method (FEM) and boundary element method (BEM) with a numerical acoustic analysis program based on the wave equation.
Dealing with reflection, diffraction, resonance and more, we can analyze a wide range of issues, from purely acoustic issues to those which account for structural vibrations. These are utilized when designing our various silencers (volume decreases) and resolving infrasound issues.
Silencer design (volume decreases) and infrasound predictions
- Resonant silencer design
- Expansion-type silencer design
- Infrasound prediction/countermeasures
- Active noise control
- Resonating frequencies determination
- Acoustic radiation power and radiation efficiency studies, etc.
Selection of optimal analytical method for the study target: FEM or BEM
Sound emitted inside and outside the object can be calculated
Structure-acoustic analysis also available
Fluid-acoustic analysis also offered
Silencing building for
aircraft engine operations
Silencing building for aircraft engine operations
Predicting levels for muffler outlet
Ground Vibration: Outdoor Ground Propagation Simulations
Propagation simulations are effective when looking to examine how much different vibrations contribute to the surrounding area. INC have developed special propagation simulation software for ground vibrations. It can create a vibration level contour of the area or determine the impact levels of each vibration source at observation points along the site boundaries.
Effective for Environmental Impact Assessments (Vibration Predictions) as well as Determining, Handling and Predicting Current Vibrations
- Vibration assessments at site boundaries (vibration regulations and standards)
- Factories, plants and power plants
- Construction sites
- Work sites
- Vibrating sieves
- Mining hoppers, etc.
Being able to predict the vibration levels reaching the observation point and determine the impacts of each source allows for effectively treating the sources in order of impact and predicting the effect of measures
Allows input of geological conditions
Thermal Fluid Analysis: Computational Fluid Dynamics (CFD) Analysis
This can analyze heat, flow, chemical reactions, and stress issues in various fluids, such as air, flue gas, and liquids. In addition to use in the analysis we do for our consulting work and in-house design of silencers, enclosures, filter housings and combustion gas intake and exhaust devices, we also accept outsourced analysis work.
We also work with fluid-structural analysis of fluid noise issues and deformations from fluid forces and heat.
Thermal Fluid Analysis (Various analyses available. Please contact us.)
- Silencer design
- Enclosure and filter house interior design
- Piping and valve area flow
- Wind turbine blade rotation
- Air blower flow
- Wind tunnel facilities
- Aircraft engine testing facilities
- Various fluid equipment
- Consulting, analysis outsourcing, etc.
Rich physical models: Other than thermal fluid, analyses of stress, electromagnetic fields, acoustics, chemical reactions and more are available
We handle everything from analytical model creation to analysis, results processing and evaluation (partial process also offered)
Analytic results: Velocity vector diagrams, pressure distribution maps, temperature distribution maps, stress distribution maps, animation
Fluid-noise solutions and fluid-structure analysis also offered
(for gas turbine generation facilities)
Noise control via shockwave suppression
Structural Analysis
Calculates beam or structural component strength (stress), natural frequency, thermal conduction or other structural factors. In addition to use in the analysis we do for our consulting work and in-house design of silencers, enclosures, filter housings and combustion gas intake and exhaust devices, we also accept outsourced analysis work.
We also work with fluid-structural analysis of deformations from fluid forces and heat, or we can analyze the temperatures, pressure distribution or other factors obtained in thermal fluid analysis as load conditions.
Strength Analysis (Stress Analysis) and Eigenvalue Analysis (Various analyses available. Please contact us.)
- Silencer design
- Enclosure and filter house design
- Intake and exhaust ducts
- Support frames and corridors
- Various equipment
- Seismic strength
- Consulting, analysis outsourcing, etc.
Analyses from component level to overall structure available
Linear dynamic analysis, linear buckling analysis, eigenvalue analysis, heat transfer analysis, linear contact analysis, dynamic response analysis, etc.
We handle everything from analytical model creation to analysis, results processing and evaluation (partial process also offered)
Analytic results: Displacement/stress/temperature distributions, eigenmodes, animation
Fluid-structure analysis and structure-acoustic analysis also offered
Contact Us
For an estimate or to order your own analysis, please contact us:
INC Engineering
Engineering Division, Environmental Technology Dept.: +81-(0)3-3360-3227