在经典力学里,假若一个系统的任何约束是非定常约束,则定义此系统为非定常系统。非定常约束的方程式显性地含时间。假若约束方程式不显性地含时间,则称此约束为定常约束。
本文所考虑的是二阶非定常系统稳定性的积分不等式判别法。
In this paper we shall discuss the criteria of stability for second-order linear nonautonomous, systems using the integral inequality.
本文将一维非定常不可压流体力学方程组,应用于整个低速透平压缩机系统。
The fluid mechanics equations of one-dimensional incompressible unsteady flow are adopted in whole low-speed turbo-compression system.
文中利用一维等熵非定常气体的运动方程计算系统的各参数,并把所得参数作为设计和试验的参考数据。
Kinematic equation of one-dimensional isoentropic nonsteady air was used to calculate system parameters for reference of design and experiment.
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