定常状态 meaning in English
stationary regime
stationary state
steady state
Examples
- Method of steady state
定常状态法 - In the second part , firstly , the mathematical model for predicting hydrodynamic characteristics of varivec propeller under steady or unsteady condition are present , based on the general propeller lifting - surface theory , potential flow theory and green theorem . then , theoretical calculation methods for predicting hydrodynamic characteristics of varivec propeller designed above paragraphs are present , based on the finite basic solution method , the unsteady vortex lattice method and hess - smith method
在理论计算部分，本文首先基于常规螺旋桨升力面理论、势流理论和格林定理建立了定常和非定常状态下全方向推进器水动力性能计算的数学模型，然后利用有限基本解法、非定常涡格法和赫斯?史密斯方法对全方向推进器定常和非定常状态下的数学模型进行了数值离散，接下来针对前面所设计的全方位推进器进行了数值预报。 - In the paper , active control to rotor vibration with sma is studied : 1 ) the material performance of sma , especially the coupled relation of strain , stress and temperature , is studied in nonlinear coupled thermoelasticity theory and the linear result is modified ; 2 ) the nonlinear dynamic behavior of rotor system with sma bearing is studied in the nonlinear theory and the dynamic stability theory and the deference of the soft / hard nonlinear system is pointed out
1 ）运用非线性热弹性耦合理论研究记忆合金材料的力学性能，特别是应力、应变和温度三者之间的耦合关系，改进了原有的线性结果。 2 ）运用非线性理论和运动稳定性理论研究带有记忆合金支承的转子系统在非定常状态的非线性动力学行为，指出了软、硬非线性系统的区别。 - The way to eliminate chaos phenomenon through adjusting system parameters is indicated . the nonlinear dynamic behavior of journal bearing - rotor system in large parameter space is studied in numerical integral method and floquet theory and the first and second bifurcation behavior of nonlinear rotor system are discussed ; the concept is advanced that realizing the controllable nonlinear stiffness with sfd with the soft - nonlinear of sma in the super - elasticity state to make the vibration amplitude of system always be in the small solution state to reduce the vibration amplitude of rotor system
运用数值积分方法结合floquet理论对滑动轴承-转子系统的大参数范围非线性动力学特性进行了全面的研究，详细地讨论了系统的一次和二次分岔行为； 5 ）提出了用形状记忆合金在超弹性状态下的软非线性，结合挤压油膜阻尼器实现系统刚性的非线性可控，降低系统在非定常状态下的最大振幅的构想。