The embodiment of the invention provides a rigid-wall passenger compartment and a sound-sound, sound-vibration coupling and sound absorption verification system and method, and relates to the technical field of research of NVH sound-sound, sound-vibration coupling characteristics and interior sound absorption performance. The passenger compartment comprises a passenger compartment body; the body accessories are installed on the passenger compartment body and include one or more of a vehicle door, windshield glass, a front wall thin plate, an instrument board, a trunk shelf and typical interiors; the covering assembly is arranged on the inner side of the passenger compartment body and used for detachably covering the passenger compartment body and covering one or more of the body accessories. Typical sound-sound and sound-vibration coupling structures and interiors are integrated, the detachable covering assembly is arranged on the inner surface of the passenger compartment, coupling conditions capable of being progressively verified can be provided during testing and simulation calibration, the influence of all sub-sound cavities and structures of a real vehicle on a main sound cavity in the vehicle is simulated, the device can be used for simulation modeling calibration of the typical interiors, and the simulation calibration efficiency is improved. And the quantization of the influence frequency band of the interior trim on the noise in the vehicle and the noise reduction effect is realized.
本发明实施方式提供一种刚性壁乘员舱、声声、声振耦合及吸声验证系统及方法,涉及NVH声声、声振耦合特性及内饰吸声性能研究技术领域。乘员舱包括:乘员舱本体;安装于乘员舱本体的本体附件:车门、风挡玻璃、前围薄板、仪表板、行李箱搁物板及典型内饰中的一种或多种;覆盖组件,设置于乘员舱本体内侧,用于可拆卸的覆盖所述乘员舱本体,以及覆盖本体附件中的一者或多者。本发明集成典型声声、声振耦合结构及内饰,通过在乘员舱内表面设置可拆卸的覆盖组件,能够在进行测试及仿真标定时提供可递进验证的耦合条件,模拟实车各子声腔、结构对车内主声腔的影响,可用于对典型内饰的仿真建模标定,实现内饰对车内噪声影响频率段及降噪效果的量化。
Rigid wall passenger compartment, sound-sound, sound-vibration coupling and sound absorption verification system and method
刚性壁乘员舱、声声、声振耦合及吸声验证系统及方法
2023-05-05
Patent
Elektronische Ressource
Chinesisch
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / G01N Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften , INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES |
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