提出了有效床存量的概念、床压控制的原则、一次风机压头选择的依据。
In light of the operating condition, design principle, stress condition and the characteristic of air flow, the cause of fracture and mechanism of primary fan was studied and analyzed in this paper.从风机叶片的运行工况、设计结构和受力状况以及气流流动的特点等方面,研究和分析了叶片产生断裂的原因和机理。
Fan noise is the most primary noise fountain in the continuous wind tunnel.风扇噪声是连续式风洞最主要的噪声源。