TPA / In-situ TPA: Data collection, identification of Blocked Forces, model synthesis, model verification, export.
The TPA project enables the complete execution of TPA, including the identification of Blocked Forces in accordance with ISO 20270:2019. This workflow integrates the advantages of both experimental and numerical methods, systematically guiding through all essential requirements and optional processes in a step-by-step manner.
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basic information
Transmission of structural propagation sound through step-by-step guidance Path analysis › Definition of TPA model using measurement point library and (optional) 3D model › Model calculations and validation methods included in APR 600: › Blocked Forces in accordance with ISO 20270:2019 › Indirect force measurement (IFD) using inverse matrix › Evaluation of interface quality (Interface Completeness Criterion Plus, ICCplus) › Calculation and visualization of transfer functions, coherence, impulse response, and excitation spectrum › Data export to the structural analysis package of the Prognoise project and ArtemiS SUITE › Additional methods and export options available by combining with ASP 601, ASP 602, and ASP 603
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Applications/Examples of results
- Automatic calculation and documentation of Blocked Forces in compliance with ISO 20270:2019 enables result exchange in a standard format. - Utilization of a combination of simulated transfer functions and measured excitation forces for the hybrid TPA approach. - Benchmarking at a detailed component level. - Definition of Path-Level objectives. - Result export to an interactive PreSense NVH simulator (requires ASP 602 and ASP 603). - Virtual audible experience of real-world driving.
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Company information
HEAD acoustics Japan Co., Ltd. has been active as a leading company in the fields of dummy head-related recording and playback systems, acoustic analysis based on human auditory characteristics, and communication measurement technology for over 25 years. HEAD acoustics has consistently been a pioneer in developing innovative technologies such as dummy head-related binaural technology, acoustic analysis related to human hearing, interactive sound simulation systems, and transmission path analysis. HEAD acoustics will continue to focus on research and development through collaboration with universities and other research institutions and participation in international research projects.
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