振动与冲击
振動與遲擊
진동여충격
JOURNAL OF VIBRATION AND SHOCK
2014年
22期
78-82,105
,共6页
周军伟%何琳%徐荣武%崔立林%XU Rong-wu%CUI Li-lin
週軍偉%何琳%徐榮武%崔立林%XU Rong-wu%CUI Li-lin
주군위%하림%서영무%최립림%XU Rong-wu%CUI Li-lin
机械噪声%实时预报%频响函数%传导函数%激励源%工况联合
機械譟聲%實時預報%頻響函數%傳導函數%激勵源%工況聯閤
궤계조성%실시예보%빈향함수%전도함수%격려원%공황연합
mechanical noise%real-time prediction%frequency response function(FRF)%transmissibility function(TF)%exciting force%operational conditions combination
据线性时不变系统自身具备的响应传导特性,将力-响应传递函数模型转化为响应-响应传导函数模型用于船舶机械噪声预报。理论推导传导函数法用于响应预报的约束条件,分析其用于船舶机械噪声实时预报的可行性。给出传导函数的求解方法-工况联合法,并对其应用条件进行分析论证。双层圆柱壳体模型试验结果表明,传导函数法用于近、远场机械噪声预报时均具有较高精确度。
據線性時不變繫統自身具備的響應傳導特性,將力-響應傳遞函數模型轉化為響應-響應傳導函數模型用于船舶機械譟聲預報。理論推導傳導函數法用于響應預報的約束條件,分析其用于船舶機械譟聲實時預報的可行性。給齣傳導函數的求解方法-工況聯閤法,併對其應用條件進行分析論證。雙層圓柱殼體模型試驗結果錶明,傳導函數法用于近、遠場機械譟聲預報時均具有較高精確度。
거선성시불변계통자신구비적향응전도특성,장력-향응전체함수모형전화위향응-향응전도함수모형용우선박궤계조성예보。이론추도전도함수법용우향응예보적약속조건,분석기용우선박궤계조성실시예보적가행성。급출전도함수적구해방법-공황연합법,병대기응용조건진행분석론증。쌍층원주각체모형시험결과표명,전도함수법용우근、원장궤계조성예보시균구유교고정학도。
The traditional response estimation model is based on force-response relationship.According to the transmissibility concept in linear time invariant system,a new response estimation method by the name of transmissibility function (TF)method was provided based on response-response relationship.The principle of the method was interpreted in mathematic formula and the restriction condition was presented.Then,an engineering technique called operational conditions combination was presented for calculating the transmissibility function (TF)of vibration responses,and the guideline on how to devise the scheme of working conditions was discussed.The performance of the developed transmissibility function method was validated by a cylindrical double-shell vibration test.