臺灣博碩士論文加值系統

由於液壓引擎腳（Hydraul ic engine mount ）部品之設計開發，牽涉到橡膠、液壓油、部品之結構，因此本論文藉由一簡化之模型，改變其膠料、液壓油、油室之結構（流道長度與孔徑），利用實臉儀器，於液壓引擎腳之主要制振頻率範圍（4-20Hz ) ，測試其靜動態特性值－靜彈性係數Ks、損失係數（Loss Factor）、絕對彈性係數K*，之變化，並將之圖形化以分析其各參數變化之影響。 依本實測結果，損失係數tanδ與流道長度成正比，損失係數tanδ對頻率之峰值與流道長度成反比，而損失係數tanδ與流道孔徑成正比，損失係數tanδ對頻率之峰值與流道孔徑成正比，K*值於較小孔徑狀態時，可於低頻時即增加，而較大孔徑狀態時，需要較高頻K*值才會增加，K*值於較長流道狀態時，可於低頻時即增加，而較短流道狀態時，需要較高頻K*值才會增加。

There are many processes included to development a hydraulic engine mount ; rubber materials , liquid oils , the structure of the engine mount , etc . The purpose of this thesis is to understand various parameters which affect the static/dynamic modulus of engine mount . The parameters which included in this thesis are the rubber materials , the liquid oils , structure of component and the dynamic vibration frequency . From results , the value of loss factor increased as increasing the length of orifice , while the peak value of loss factor as a function of frequency was found increased as decreasing the length of orifice . On the other hand , the value of loss factor increased as increasing the size of aperture on orifice . The peak value of loss factor as a function of frequency was also found increased as increasing the size of aperture on orifice .