长春理工大学学报（自然科学版）
長春理工大學學報（自然科學版）
장춘리공대학학보（자연과학판）
JOURNAL OF CHANGCHUN UNIVERSITY OF SCIENCE AND TECHNOLOGY(NATURAL SCIENCE EDITION)
2013年
6期
82-85
,共4页
附加质量快%振动工作变形(ODS)%车内噪声%减噪%横向推力杆
附加質量快%振動工作變形(ODS)%車內譟聲%減譟%橫嚮推力桿
부가질량쾌%진동공작변형(ODS)%차내조성%감조%횡향추력간
additional mass%operating deflection shape (ODS)%interior noise%noise reduction%horizontal push rod
针对某型MPV轿车高速行驶时车内低频轰鸣噪声问题，对该车分别进行工作变形和底盘悬架系统对车内噪声测点的传递路径分析发现，横向推力杆是车内低频噪声的产生激励源。为节约成本，采用在横向推力杆上安装附加质量块的方法解决车内低频噪声问题。通过理论计算确定附加质量块的大小和安装位置，并对安装附加质量块后的车内噪声进行测试，发现附加质量块的安装可有效降低该型轿车车内低频噪声问题。
針對某型MPV轎車高速行駛時車內低頻轟鳴譟聲問題，對該車分彆進行工作變形和底盤懸架繫統對車內譟聲測點的傳遞路徑分析髮現，橫嚮推力桿是車內低頻譟聲的產生激勵源。為節約成本，採用在橫嚮推力桿上安裝附加質量塊的方法解決車內低頻譟聲問題。通過理論計算確定附加質量塊的大小和安裝位置，併對安裝附加質量塊後的車內譟聲進行測試，髮現附加質量塊的安裝可有效降低該型轎車車內低頻譟聲問題。
침대모형MPV교차고속행사시차내저빈굉명조성문제，대해차분별진행공작변형화저반현가계통대차내조성측점적전체로경분석발현，횡향추력간시차내저빈조성적산생격려원。위절약성본，채용재횡향추력간상안장부가질량괴적방법해결차내저빈조성문제。통과이론계산학정부가질량괴적대소화안장위치，병대안장부가질량괴후적차내조성진행측시，발현부가질량괴적안장가유효강저해형교차차내저빈조성문제。
In order to solve the low frequency roar noise problems of a certain type of multi-purpose vehicles at high speeds,analysis of working deformation and transfer path of chassis suspension system effect on the interior noise mea-suring point were studied.It is shown that horizontal push rod was the stimulus source of interior low frequency noise.In order to save the cost, additional masses added to the horizontal push rod were used to solve low frequency noise in the car,the size and installation position is determined through the theoretical calculations.In the end,interior noise test of car fitted the additional mass was examinedand found that the additional mass can effectively reduce interior low fre-quency noise problem of this type car.
