Analysis of acoustic transmission loss and radiated sound.
The muffler, represented by the automobile exhaust silencer, refers to a silencer (silencer) installed in a part that has ducts serving as pathways for sound and fluids. The sources of noise from this muffler can vary, but it often seems to be relatively low-frequency sounds associated with the explosion noise from the engine. To accommodate these low frequencies, the design incorporates acoustic elements such as expansion-type, resonator-type, branch pipes, and expansion resonance types that can resonate at low-frequency ranges, as well as interference-type, absorption-type, and resistance-type acoustic elements that are effective in a wide frequency range or mid-to-high frequency range. - The importance of coupled analysis considering acoustic transmission loss and sound propagation to external areas - For the design of high-performance automotive mufflers If you are interested in acoustic design, please take a moment to read this. Free download of materials ⇒ https://www.idaj.co.jp/whitepaper/0015/form.html
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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 resolve all issues? In reality, operating the introduced software correctly requires advanced experience and skills. For instance, 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 and 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 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 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 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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