mass unbalance 中文意思是什麼
mass unbalance
解釋
質量不平衡-
Fist ly, use mass equivalent method to predigest the original rotor system. secondly, use transfer matrix arithmetic to have finished the relative program to calculate the critical speed of flexible multi - tray rotor bearing system by matlab language. thirdly. finish program the unbalance response using riccati - transfer matrix arithmetic and finity buck arithmetic. fourthly, answer to the high vibration of uncontroled system when cross the critical speed, come out to adopt changing clearance damper bearing to control the viberation
本文對多柔盤轉子-支承系統的振動現象做了以下初步探索：用質量離散化方法把原轉子系統簡化；採用matlab語言編制了對傳遞矩陣法計算多柔盤轉子-支承系統的臨界轉速；用matlab語言對riccati傳遞矩陣法和有限元法編制了程序計算系統的不平衡響應；並針對其過臨界轉速時振動較大的現象，提出採用變間隙控制油膜剛度和阻尼，從而使原系統的在特定轉速（臨界轉速）的一段范圍內不平衡響應減小；並從被動控制與主動控制兩方面進行數值模擬，取的了較好的控制效果。 -
Then a 16dof rotors system with 2. span, 4. disk and 4. support is modeled in the form of plural ode, considering the unbalance of mass, external damping, nonlinear oil film forces as well as elevation of the bearings
（ 4 ）針對求復數ode周期解及穩定性分析，討論了復數打靶法和floquet理論的應用問題，證明了復數ode與實數ode對應jacobian和單值矩陣的關系。 -
So, with the reciprocal mass of this combinational equipment, the dynamic unbalance of the crank has the special status in the field of the unbalance theory
由於有往復質量的影響，曲柄連桿機構不可能達到完全的平衡，有其特殊性，因此其理論在動平衡領域內佔有特殊地位。 -
So, with the reciprocal mass of this combinational equipment, the dynamic unbalance of the crank - connecting rod mechanism has the special status in the field of the unbalance theory
由於有往復質量的影響，曲柄連桿機構不可能達到完全的平衡，有其特殊性，因此其理論在動平衡領域內佔有特殊地位。 -
Secondly, based on the defects of the uptodate balancing machine which were employed in the motorcycle manufacture plants, this dissertation has presented a new method on the means of checking unbalance mass of the motorcycle engine crank set. it has adopted the hard - bearing balancing machine as the prototype ， utilized tow group of resistance sensors placed in vertical direction with one another to pick up the information which stand for the inertial force of the motor engine crank set when it is running
其次，通過對當前國內外曲柄連桿機構動平衡實驗的現狀及其存在問題的分析研究，提出了一種新的測試方法：在工作原理上採用硬支承型測力式動平衡機，在測量方法上應用互成900的兩點測量來失量合成任意一點旋轉慣性力大小及方向，這也是也是其不同於以往試驗機的最大之處。 -
Secondly, based on the defects of the uptodate balancing machine which were employed in the motorcycle manufacture plants, this dissertation has presented a new method on the means of checking unbalance mass of the motorcycle single - cylinder engine crank - connecting rod mechanism. it has adopted the hard - bearing balancing machine as the prototype, utilized tow group of resistance sensors placed in vertical direction with one another to pick up the information which stand for the inertial force of the motor engine crank set when it is running
其次，通過對當前國內外曲柄連桿機構動平衡試驗的現狀及其存在問題的分析研究，提出了一種新的測試方法：在工作原理上採用硬支承型測力式動平衡機，在測量方法上應用互成90的兩點測量來矢量合成任意一點旋轉慣性力大小及方向，這也是其不同於以往試驗機的最大之處。 -
Furthermore, on the theoretics of the balancing machine and associations with the practicalities of the motorcycle crank, it has reasoned out the test principles and mathematic model of the unbalance mass checking device of the motorcycle engine crank set, which is supported by the new method
提出了新型試驗方法所採用試驗裝置的測試原理和數學模型，並設計出了模型機。模型機正在製造中。第三：得到了一個結論：摩托車發動機曲柄連桿機構的動平衡率等於旋轉不平衡量除以往復不平衡量。 -
The purpose of " balancing " - of restoring uniformity of mass distribution insofar as possible - is not to eliminate all rotating system unbalance, but to bring it down to a tolerable level
平衡（使轉子質量分佈均勻）的目的並不是完全消除轉子的不平衡，而是將其降低至容許范圍內。 -
Furthermore, the request and conformation of the unbalance mass checking software, which is applied into this balancing prototype machine, has been brought forward in this dissertation
第四，對測試過程中數據定標進行了詳細研究。對數據採集、數據處理作了簡要分析。 -
This dissertation has presented a new method on the measuring and checking procedures of the dynamic unbalance of the motorcycle crank and made a deep research on its measuring device. what have been done is as follows : firstly, the dissertation has thoroughly discussed the basic theory of rotor unbalance such as its varieties ， characters and rules of the movement which is under the excitation of the inertial force and inertial moment induced by the unbalance mass. it also has deeply expounded the dynamic mechanics of the specially formed components ? crank, especially in the area of the crank integrated with shaft and piston
本論文針對摩托車發動機曲柄連桿機構為研究對象，對曲柄連桿機構動平衡的測試提出了一種新方法，並對其數字化測試裝置進行了深入研究，完成的主要工作及取得的成果如下：首先，對動平衡理論進行了詳細的探討，論述了不平衡產生的原因，不平衡種類及轉子在不平衡量產生的慣性力激勵下的運動規律，並對曲軸這一結構特殊的剛性轉子的平衡理論進行了闡述，重點研究了曲柄連桿機構這一往復式機械構件的力學特性。 -
This dissertation has presented a new method on the measuring and checking procedures of the dynamic unbalance of the motorcycle single - cylinder engine crank - connecting rod mechanism and made a deep research on its measuring device. what have been done is as follows : firstly, the dissertation has thoroughly discussed the basic theory of rotor unbalance such as its varieties, damages, characters and rules of the movement which is under the excitation of the inertial force and inertial moment induced by the unbalance mass. it also has deeply expounded the dynamic mechanics of the specially formed components - crank shaft, especially in the area of the crank - connecting rod mechanism
本論文針對摩托車單缸發動機曲柄連桿機構為研究對象，對曲柄連桿機構動平衡的測試提出了一種新方法，並對其數字化測試裝置進行了深入研究，完成的主要工作及取得的成果如下：首先，對動平衡理論進行了詳細的探討，論述了不平衡產生的原因、危害，不平衡的種類及轉子在不平衡慣性力激勵下的運動規律，並對曲軸這一結構特殊的剛性轉子的平衡理論進行了闡述，重點研究了曲柄連桿機構這一往復式機械構件的力學特性。 -
If the system parameter is known, the unbalance can be acquired from the response without adding trial mass, the responses are obtained from the program which emulates the real responses, correspondingly, the unbalance can be acquired by adding trial mass if the system parameter is unknown
當系統的參數已知時，不加試重的對轉子不平衡作了識別；當系統參數未知時，通過加一次試重的辦法來提取不平衡量。文中以一簡單模型轉子為例對方法的有效性作了檢驗。 -
Unbalance means the non - uniform distribution of the mass of a rotor about its axis of rotation
不平衡是指轉子相對于其旋轉軸質量分佈不均勻。
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