oil damping 中文意思是什麼
oil damping
解釋
油減震-
The structure and operating principle of an air - charged split - type adjustable shock absorber was described, e non - linear parameterized mathematical model of this shock absorber ' s damping characteristics was established according to fluid mechanics theory and the main structural affection factors to shock absorber ' s damping performance, such as the diameter of piston valve orifice, the diameter of adjustable orifice, the initial volume of gas chamber, the diameter of piston rod, the inner diameter of oil pipe and so on, were analyzed by simulations
摘要通過分析一種分體式充氣可調阻尼減振器的結構和工作原理，運用流體力學理論，建立了該減振器阻尼特性的非線性參數化模型，模擬分析了活塞阻尼閥孔徑、阻尼調節孔徑、氣室初始體積、活塞桿直徑、油管內徑等主要結構參數對減振器阻尼性能的影響，通過試驗測試，得到了減振器樣件的阻尼特性及其可調范圍。 -
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。 -
Traditional approach to raise damping is installing passive damper between cable and deck, such as viscous ( oil ) dampers
目前增加拉索阻尼的常用辦法是在拉索和橋面間安裝被動阻尼器，如油阻尼器。 -
The controllable dampers are designed according to two basic principles which change damping force by changing the flow area of valves in damper and changing flow behaviors of damping oil
主動阻尼器一般根據兩種原理進行設計? ?改變阻尼器阻尼通道的流通面積和改變阻尼器中阻尼液的流動特性。 -
The dynamics behaviors of the flexible jeffcott rotor system supported by unsteady short dynamic bearing are investigated. based on nonlinear unsteady - state dynamic n - oil film force model described by three functions the local stability of the periodic solutions with the controlling parameters, rotational speed ratio, imbalance amount, damping ratio and viscidity, are predicted by using the floquet multiplier. it is found that the period doubling bifurcation is caused by a certain imbalance amount and the hopf bifurcation is created by the lost stability of the oil - film
研究了非穩態動載短軸承支撐的jeffcott柔性轉子系統的動力特性，基於可用三個函數表示動態油膜的非穩態非線性油膜力模型，將轉速比、不平衡量、阻尼比、粘度作為控制參數，利用floquet乘子預測周期解的局部穩定性，發現倍周期分叉是由一定量的不平衡引起的，而hopf分叉是由油膜失穩造成的。 -
C. twin tube structure with stand from front to back, with heavy - caliber specification and imported damping oil will enhance the radiation capability
前後正立復筒式構造，採用大口徑規格，進口阻尼油，增加散熱性。 -
The research work focuses on the following four main investigations : 1. theory of fluid system design for adjustable linear oil damper by use of dynamic mathematical models and dynamic - parameter - compensat ing method, the first research of this item has established the generalized optimiz - - ation mathematical model of the fluid system of an adjustable linear oil damper ; by use of the mechanical generalized optimization theory and platform, the first research has also made a multi - objective and overall - performance optimal design to the fluid system which gives the damper both the best damping performances and the best economic capacities ; by modeling the whole damper and analyzing it by numerical method, the second research of this item has solved the problem of the damper ' s dynamical damping characteristics calculation, simulation and analysis
主要涉及以下四個方面的內容： 1 、可調式線性油壓減振器阻尼系統的設計理論採用動態數學模型和動態參數補償的方法對可調式線性油壓減振器的阻尼系統進行了廣義優化設計建模；運用機械廣義優化設計理論和平臺對可調式線性油壓減振器的阻尼系統進行了多目標、全性能的優化，實現了其技術性能和經濟性能的綜合優化設計；通過對整個油壓減振器進行建模與數值分析，解決了工程上對多級擬合線性油壓減振器的阻尼性能進行求解、對其動態特性進行分析的難點。 -
3. research on the parameter influence between linear oil damper and vertical dynamics of railway vehicles by developing software for simulation and analysis, this item has done research work on the parameter influence between linear oil damper and the vertical dynamics of railway vehicles. this research work has achieved some fruits on the engineering optimal damping rate choice method on the installation and maintenance guide lines etc. for the axis - box dampers
3 、線性油壓減振器與車輛垂向動力學研究為了向高速列車線性油壓減振器的參數優選提供方法，為其安裝與維護等問題提供了要求與準則，本文通過建立高速列車垂向動力學模擬與軸箱油壓減振器參數優選、運行分析軟體系統，從系統的角度對線性油壓減振器的運行與車輛垂向動力學品質的關系進行了研究。 -
It is showed by the results that, the rotor has different dynamics with respect to present results obtained by other researchers while the rotor is subjected to internal damping, nonlinear oil film forces and nonlinear elastic forces simultaneously. with increase of the rotary speed the rotor, quasi. periodic movement caused by internal damping will occur
發現當轉子通過油膜失穩進入倍周期運動時，由於非線性內阻力作用，還會發生概周期分岔形式的二次分岔，產生約1 / 6倍工頻的低頻運動。
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