摘要
飞机舱内局部区域振动水平较高会直接影响乘坐的舒适性。本文首先采用ISO2631-1:1997(E)国际标准对飞机舱内振动舒适性进行评估,基于实测谱开展了人体振动舒适性主观评价试验,并通过主观反馈结果确定了减振设计的目标频带。其次,设计了一种隔振装置用于隔离作用于起落架舱内的气流脉动压力,并通过有限元仿真计算验证了减振效果。最后,通过人体振动舒适性试验验证了减振措施的主观体验效果,统计结果表明,接近90%的受试人员都表示"没有不舒适",证明了减振措施的有效性。
Vibration level directly affects the riding comfort for commercial aircraft. In this research, the international standard ISO 2631-1: 1997(E) is employed to evaluate the riding comfort of an aircraft. Meanwhile, human subjective assessments are given by conducting the experiments in which the spectrums are measured in the flight. The target frequency band which plays an important role for the riding comfort are also distinguished from the experiment. A vibration isolation apparatus is designed to isolate the impulsive pressure acting on the panels in landing gear well. Its vibration control effectiveness is verified by simulation in Abaqus software. Finally, the control effects are replayed on a shaking table and assessed by several volunteers subjectively.
作者
李凯翔
张飞
Li Kaixiang;Zhang Fei(Laboratory of Aeronautical Acoustics and Vibration,Aircraft Strength Research Institute,710065,Xi'an,China)
出处
《应用力学学报》
CAS
CSCD
北大核心
2021年第2期839-843,共5页
Chinese Journal of Applied Mechanics
基金
民机项目(2018F8)。
关键词
主观体验
振动
舒适性
减振设计
subjective assessment
vibration
comfort
vibration attenuation design
