大倾角靠背汽车座椅振动传递特性及舒适性研究

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中图分类号：TB18 文献标志码：A DOI：10.16385/j.cnki.issn.1004-4523.202508092

Vibration transmissibility and comfort of large-backrest-angle automotive seats

SU Zhixin，LIN Zefeng，YIN Weitan，LIU Chi，ZHENGXu，QIUYi （Collge of Energy Engineering，Zhejiang University，Hangzhou 31oo18，China）

Abstract;Thisstudycoductedexpeimentontbrationtrasmissoncharacteriticsoftheumanodyitigonacaseatiae backrestclinationagleandivestigatedibrationcomfortTwelveparticipatseruitedtositinacarseat，wichwasofgedit bothanormalbackrestandalarge-anglebackrest.Theywereexposedtoverticalandlateralsingle-axisrandomvibrations.Vibration acelerationsweremeasudattevbratortable，theseatcuson，andthebackrest，alowingfortecalculationofseatrasmisiilt Aditionally，themagtdestimatiometodasusedtobtaintheartipants’subjectievbratiodscomfortTeexperieaalyd theinflueceofbaodectioatioampideandacstagoeatvibatirasmsibiltndsueiesore studyfoundthatunder verticalvibrationexcitation，comparedtothenomalbackrest，theresonancepeak frequencyandpeak valueof transisibilityatboththeseatcusonandbackrestincreasedwithtelargeanglebackrest.Underlateralvibrationexcitation，thefist resonancepeakvaeofbackresttrasmisibilitydecreasedwithtelarganglebackretVibrationcomfortatigsdreasdwitieasing vibration excitationamplitude forboth backrestconfigurations.When the total weighted acceleration was below 0.19ms2r.m.s. ，the comfort level with the normalbackrest waslower thanthat withthe large-anglebackrest；whenthe total weightedacceleration exceeded 0.19ms2r.m.s. ， the comfort level with the normal backrest became higher than that with the large-angle backrest.

Keywords：humanfactorengineeing;whole-bodyvibration;seatransmisibility;subectivecomfort;backrestinclinatioangle

近年来，中国新能源汽车和自动驾驶技术发展迅猛，车内空间的设计与利用方式向多元化和智能化迈进，车辆乘员对乘坐舒适性的要求也随之提高。（剩余18860字）