Especially , we implement " concavity " methods in the linear damping case , m = 2 特別地,利用凹方法考慮線性阻尼情形即m = 2 。
Non - linear damping characteristics of mrf dampers was described qualitatively , providing a theoretical basis for the design of mrf dampers with mixed mode of pressure - gradient flow and shearing flow in a single cylinder 定量描述了磁流變液阻尼器的非線性阻尼特性,為單筒壓差流動和剪切流動混合模式磁流變液阻尼器的設(shè)計提供了理論依據(jù)。
The motion of a type of nonlinear damped oscillation is analyzed to resort the method of numerical analysis , and compared it with the motion of the linear damped oscillation 摘要用數(shù)值分析方法分析一類非線性阻尼振動問題,與線性阻尼振動進(jìn)行比較,得到非線性阻尼振動狀態(tài)每次過= 0位置的時刻稍后于線性阻尼振動狀態(tài)。并分析了將非線性阻尼振動當(dāng)作線性阻尼振動的條件。
In this paper , to counter a flexible beam undergoing large overall motion impacting a fixed slope surface under the effects of grativity , the normal contact model is established based on the hertz theory and non - linear damping term , the tangential contact model is developed by adopting linear tangential contact stiffness to consider the effects of friction force during impact process , and the consistent linear dynamic model including impact is derived by using mode assumption method and lagrangin equation 針對在重力場下作大范圍回轉(zhuǎn)運(yùn)動的柔性梁與一固定斜面發(fā)生斜碰撞的情況,根據(jù)hertz接觸理論和非線性阻尼項建立法向碰撞接觸模型。引入線性切線接觸剛度建立切向碰撞接觸模型,以考慮接觸過程中由于切向相對速度的換向作用引起的摩擦力的變化。利用假設(shè)模態(tài)法和lagrangian方程建立系統(tǒng)含碰撞過程的一致線性化的動力學(xué)模型。