Integrated discomfort modelling of combined noise and vibration exposure in turbofan aircraft cabin
基于滑行和巡航时前舱与中舱的噪声振动记录，通过6自由度模拟器实验，发现振动可减弱中舱滑行时的噪声不适，而噪声双向调节振动不适，并建立了高精度预测模型（调整R²=0.819），为客舱环境设计提供工程工具。
To address rising comfort expectations in turbofan aircraft cabins, this study developed a predictive model for multimodal discomfort from combined noise and vibration. The noise/vibration stimuli were generated based on recordings in front and middle cabins during taxiing and cruising and amplitude-modulated to four intensity levels. Using a 6-DOF vibration simulator replicating cabin dynamics, we exposed 26 participants to isolated and combined stimuli. Results revealed vibration attenuated noise discomfort in middle cabin during taxiing, while noise bidirectionally modulated vibration discomfort in middle cabin during taxiing or cruising and front cabin during cruising. Mutual inhibition neutralised cross-modal effects during peak taxiing conditions in middle section. Equivalence discomfort contours quantified the relative impact of each modality, identifying optimisation priorities. A multivariate regression model predicting combined discomfort from modality-specific inputs achieved high accuracy (adjusted R2 = 0.819), providing an engineering tool for cabin environment design.