活塞銷響 的英文怎麼說
中文拼音 [huósèxiāoxiǎng]
活塞銷響
英文
pin knock-
The reassigned smoothed pseudo wigner - ville distribution ( rspwvd ) is introduced, which has less interference and higher resolution than other time frequency distributions like wigner - ville, choi - williams etc. it is used to detect the multi - knocking of engine such as cylinder, piston pin, valve, crank bearing, connecting rod bearing and jib knocking. a new fault diagnosis technique based on the rspwvd for the engine multi - knocking problem is proposed. by comparing the bispectrum and bicoherence of the gear vibration signals, it is demonstrated that bispectrum has an advantage over bicoherence for feature extraction of such signals
第四章首次引入一種重分配方法，得到干擾項少而解析度高的重分配平滑偽魏格納維爾分佈（ rspwvd ） ；對發動機曲軸主軸承響、連桿軸承響、活塞銷響、活塞敲缸響、氣門響和挺桿響等常見機械異響故障振動信號特徵進行了全面地比較分析；通過對各種異響故障特徵信號的分析研究，提出基於rspwvd的發動機多異響故障診斷策略，利用該策略可以準確識別不同的發動機異響故障。Analysis of abnormal sound of piston pin in engine
發動機活塞銷異響分析Using gap elements to simulate the practical worki n g situation of a piston, a new finite element contact model is proposed both th e stress and deformation of the piston and the pressure distribution between the p iston and the pin are obtained the contact area and the pressure distribution v ary with the stiffness of the pin and the clearance between the piston and the p in
該文使用間隙元模擬活塞的實際工作狀態，提出活塞的有限元接觸模型，不僅可以得到活塞的應力和變形，還可以計算出活塞與活塞銷之間的壓力分佈以及銷的剛度、銷與銷座的間隙變化對接觸區域的大小和壓力分佈的影響Abstract : using gap elements to simulate the practical worki n g situation of a piston, a new finite element contact model is proposed both th e stress and deformation of the piston and the pressure distribution between the p iston and the pin are obtained the contact area and the pressure distribution v ary with the stiffness of the pin and the clearance between the piston and the p in
文摘:該文使用間隙元模擬活塞的實際工作狀態，提出活塞的有限元接觸模型，不僅可以得到活塞的應力和變形，還可以計算出活塞與活塞銷之間的壓力分佈以及銷的剛度、銷與銷座的間隙變化對接觸區域的大小和壓力分佈的影響Following the architecture description of rtps middleware, two critical implementation issues are carried out : the first, object - oriented multi - threaded architecture. to avoid negative effect brought by the block, and to improve the realtime responsive ability of the system, we decouple the event processing from its transportation ; the second, pooled memory allocationjn order to decrease the time - and - space overhead due to dynamic memory allocation, thus to improve the dynamic performance of the realtime publish - subscribe system and the predictability of runtime end - to - end qos, we adopt the pooled allocation to change many dynamic system calls into one static system call and several user interface calls in fixed time
通過將事件的輸送與處理解耦以避免阻塞所帶來的影響、改善系統的實時響應能力，通過面向對象的多線程並發以支持異步事件的實時並發處理並獲得系統結構上的靈活性；其二，池式內存分配。通過內存池分配方式將客戶的大量動態系統調用轉化為一次靜態系統調用和數次固定時間的用戶介面調用以減少動態內存分配的時空開銷，從而改善實時發布-訂閱系統的動態性能與提高其運行時端對端服務質量的（ end - to - endqos ）可預測性。分享友人