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叶盘耦合共振条件中激励阶次的确定

DOI: 10.13700/j.bh.1001-5965.2013.0455, PP. 984-987

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Abstract:

为了确定叶盘耦合共振条件中激励阶次的影响因素,首先建立了转静件干涉条件下叶盘结构所受激励阶次的简化图像描述,根据其与采样问题中混叠现象图形描述的相似性,对激励阶次的确定公式进行了新的理论推导,然后利用简单的叶盘结构实验件对确定公式进行了数值与实验验证.数值计算与实验研究均表明,转静件干涉条件下转子叶盘所受激励阶次等于静叶数和它最靠近的动叶数整数倍的差的绝对值,静叶数多于转子叶片数的一半时,也会发生叶盘耦合共振现象.

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