摘要
利用ANSYS软件对公司新开发的高速汽轮机调节级叶片进行强度分析,分析后发现原设计叶片存在强度安全隐患。根据原叶片的应力分布状态,在机组通流保持不变的情况下,对叶根和轮缘结构进行结构优化和强度分析,分析结果表明优化后的叶片强度达到设计要求,同时在机组的调速范围内,叶片的振动性能也满足设计要求。
In this article, by using ANSYS, the strength of governing stage blade in newly developed high speed turbine was analyzed. It was found that there existed strength risk in originally designed blade. Under the condition in which flow volume in machines is unchanged and based on the stress distribution in original blade, structural optimization for the blade root and impeller edge was carried out. Then it was shown from analysis result that the strength of blade has been satisfied for design requirement. Also, the anti-vibration characteristic of the blade has reached the requirement within the speed governing stage scope of the machine set.
引文
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