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 transmit 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 acoustical 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 look. 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. Correspondingly, 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 address these challenges. Will implementing such software solve all problems? In reality, correctly operating the software 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 validating the analysis or understanding the current state of the product often require measurements or experiments, and knowledge of experimentation and measurement 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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We propose appropriate solutions after hearing the challenges from all companies and engineers that require 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 case study for Universal Mist (MUM602) – A comparative study of numerical acoustic analysis and acoustic measurements - Example 4: Muffler noise reduction design – Analysis of acoustic transmission loss and radiated sound
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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 form partnerships with leading-edge software vendors of the era, providing a comprehensive engineering environment necessary to solve our customers' increasingly diverse and complex challenges using top-level domestic digital engineering technologies, including 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.
