对低马赫数叶轮离散噪声的机理及计算方法进行了研究，并推导了离散噪声的声压计算式、低马赫数下近似计算式和轴心线上的计算式，还实验验证了计算模型。
Research is carried out on the discrete noise theory and calculation method, the calculation model of discrete noise and the approximate formula under small Mach number are verified by experiments.
仿真结果不但揭示了装备损伤机理和战场环境及条件之间的内在关系，也验证了我们所建立的模型的可行性和合理性。
The simulation result not only posts the inner relationship between the equip damage mechanism and battle environment and condition. , but also validate the feasibility and rationality of our models.
主要通过机理分析建立了氧量软测量模型，仿真验证表明建立的氧量软测量模型能够较好的反映实际氧量的变化。
Setting up the soft-sensing models of oxygen content through mechanism analysis, and this soft-sensing model fit well with the practical oxygen content, which is illustrated by the simulations.
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