For efficient design with minimal rework.
When looking at textbooks on acoustical engineering and architectural acoustics, you will find descriptions stating that doubling the walls is effective for enhancing sound insulation. Of course, this method is very effective, but there is one often-overlooked point: it is very difficult to make the two walls independent, so in reality, the two walls are installed through a common pillar, causing vibrations from one wall to be transmitted to the other. This phenomenon is called a sound bridge and is one of the major factors that prevent sound insulation performance from improving as expected. Here, we will introduce the basic principles of sound insulation with double walls and the effectiveness of an acoustic CAE (Computer Aided Engineering) approach to examining sound bridges. - Theory of double walls - Sound bridge If you are interested in acoustic design, please take a moment to read this. Free download of the materials ⇒ https://www.idaj.co.jp/whitepaper/0018/form.html
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basic information
There is a growing recognition that sound, which can be heard without conscious awareness, is one of the important factors that determine the added value of a product. In response to this, as CAD and CAE technologies develop, the demand for acoustic analysis has been increasing year by year, and many software solutions for acoustic analysis are being sold to solve various challenges. Will implementing such software solve all problems? In reality, operating the software correctly requires advanced experience and skills. For example, it is necessary to convert various parts and materials into models suitable for acoustic analysis, determine the parameters used in those models through measurements, experiments, or estimations, and input them into the software. Additionally, inspections for verifying the analysis or understanding the current state of the product often require measurements or experiments, and knowledge of experiments and measurements is essential to make acoustic analysis meaningful. At IDAJ, we offer a variety of acoustic engineering services centered around CAE for such acoustic design. Experienced specialists in acoustic analysis will assist you in solving your acoustic-related challenges.
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Applications/Examples of results
We propose appropriate solutions after hearing the challenges faced by all companies and engineers requiring acoustic analysis. Acoustic Design Examples - Example 1: The impact of sound bridges in double walls - Example 2: Evaluation of sound insulation performance of a soundproof package designed for a generator - Example 3: Noise control measures for Universal Mist (MUM602) - A comparative study of numerical acoustic analysis and acoustic measurement - Example 4: Muffler noise reduction design - Analysis of acoustic transmission loss and radiated sound
Company information
While focusing on MBD and CAE technologies and their surrounding technical areas, we specialize in building virtual products and collaborative design processes through cutting-edge digital engineering. We have formed partnerships with leading software vendors of the era to provide top-level digital engineering technologies in Japan, including solutions for thermal fluid analysis, structural analysis, electromagnetic field analysis, acoustic analysis, system simulation, optimization technologies, embedded software development environments, and simulation process data management (SPDM) solutions. We offer a comprehensive engineering environment necessary to solve the diverse and complex challenges faced by our customers. Official Blog: https://www.idaj.co.jp/blog/ IDAJ YouTube Channel: https://www.youtube.com/channel/UCGCd8pB5Lwq_noIoxpgJrrw/featured X: https://twitter.com/IDAJ_CAE Facebook: https://www.facebook.com/IDAJ.CAE
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