种车内噪声预测的方法

• Format: Patent
• Language: Chinese
• Published: 01.06.2018
• Subjects: CALCULATING; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; PHYSICS; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

本发明公开了种车内噪声预测的方法，该方法根据逐维分析理论确定设计人员所关心的车内噪声响应的波动范围。首先，实现区间参数的标准化，在参考点处以区间参数每个维度上的平面切割车内噪声响应所在曲面，确定近似多项式函数的阶数，进步确定数值积分点个数。其次，选择对应的数值积分点，计算在数值积分点处的车内噪声响应，确定近似多项式函数，进步确定最大值点与最小值点。最后，组合形成最大值点向量和最小值点向量，确定车内噪声响应的波动范围。本发明考虑了工程领域普遍存在的不确定因素对车内噪声响应的影响，将传统车内噪声分析拓展为车内噪声区间分析，可以预估车内噪声响应的波动范围，符合工程领域实际需求，应用前景明朗。 The invention discloses a vehicle interior noise prediction method. According to the method, a fluctuation range of vehicle interior noise responses concerned by a designer is determined according to a dimension-by-dimension analysis theory. Firstly, interval parameters are standardized; curved surfaces in which the vehicle interior noise responses are located are segmented by planes in the dimensions of the interval parameters at reference points; the order number of an approximate polynomial function is determined; further the number of numerical integration points is further determined; secondly, corresponding numerical integration points are selected; the vehicle interior noise responses at the numerical integrati