VRXPERIENCE(VRX) Sound集成VRX SoundAnalysis in Ansys FluentVRX Sound: 心理声学-聚焦于声音刺 激与个人感官之间的关系.-可以计算声音的若干心理学指标.-Note that soundscan be Stationary, Non-stationary, and Impulsivey· 静态声音· 瞬态声音· 冲击声音VRX Sound: 心理声学指标Loudness响度 - A sensory scale of sound intensity. It was developedexperimentally based on the research work in the field of psychophysics in thelate 19th century (E. Weber, G. Fechner) and in the 1950s (S. S. Stevens). Units of loudness are sones and phons.Sound Levels声强 – Overall acoustics sound pressure levels in decibels (can beA-weighted).Sharpness锐度 - An attribute that is related to the timbre of a sound, and is asubjective attribute describing the perception of the spectral balance of agiven sound. Unit of sharpness is theacum.TonalityProfile音调 – Identifies emerging tones (number,frequencies, levels, etc.) to determine each tone’s contribution in theperception of a sound.ArticulationIndex - a dimensionless sound metric that indicateshow much background sound levels interfere with human speech. Its value ranges from 0 (speech cannot beunderstood) to 1 (all speech can be clearly understood).基于Ansys Fluent 的仿真从仿真到声学分析流程声音主观声品质感受的量化评价流程客户目标：在开发早期评估汽车空调系统设计在整车系统级别的NVH表现，并优化产品设计；标定测试与仿真声学结果的关联性，定义实际工作状态下，HVAC噪音的接受标准及声品质评价准则。解决方案：独创的混合NVH解决方法，有机结合CAE结果和测量数据，根据电机设计、传输路径、驾驶条件、道路噪音和风噪声，创建驾驶员耳边的NVH声音感知。跨物理场耦合电磁和结构域，以获得NVH和声学的CAE仿真结果。应用价值：凭借系统级的早期虚拟NVH性能评估，节省NVH原型机迭代和反复验证测试的成本。更早的明确精准的产品NVH开发要求，避免因为模糊的NVH需求而影响浪费整个工程的开发时间。通过早期对产品NVH缺陷特征的分析，优化EoL下线检查流程，从而有效控制产品生产质量。
