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Balancing method without trial weights for rotor systems based on similitude scale model
Ruiduo YE, Liping WANG, Xiaojie HOU, Zhong LUO, Qingkai HAN
《机械工程前沿（英文）》 2018年 第13卷 第4期 页码 571-580 doi: 10.1007/s11465-018-0478-x
A balancing method without trial weights based on the dynamic similitude scale model was proposed as a solution to the balancing problem of a large-scale rotor system. This method could be used to directly obtain the required coefficients for the balancing problem of the prototype system through a similarity model test without a prototype test. Thus, the weight test process of the prototype system was effectively eliminated in the proposed balancing method. First, with the rotor system as the research object, the analytical expression of the influence coefficient was derived on the basis of rotor dynamics theory. Then, through calculation and dimensional analysis methods, the similitude relationships of the rotor system and the influence coefficient were deduced on the basis of dynamic similitude theory. The correctness of the proposed similitude relationships was verified through numerical simulation and experiment. The balancing method without trial weights was proposed based on the similitude relationship of the influence coefficient. The effect of the balancing method without trial weights was compared with that of the traditional influence coefficient method through numerical simulation, and the results verified the correctness and effectiveness of the proposed balancing method. The results of this study provide theoretical supplements for the balancing method and the similitude design of the rotor system.
关键词： rotor system dynamic similitude balancing without trial weights influence coefficient
Similitude design for the vibration problems of plates and shells: A review
Yunpeng ZHU, You WANG, Zhong LUO, Qingkai HAN, Deyou WANG
《机械工程前沿（英文）》 2017年 第12卷 第2期 页码 253-264 doi: 10.1007/s11465-017-0418-1
Similitude design plays a vital role in the analysis of vibration and shock problems encountered in large engineering equipment. Similitude design, including dimensional analysis and governing equation method, is founded on the dynamic similitude theory. This study reviews the application of similitude design methods in engineering practice and summarizes the major achievements of the dynamic similitude theory in structural vibration and shock problems in different fields, including marine structures, civil engineering structures, and large power equipment. This study also reviews the dynamic similitude design methods for thin-walled and composite material plates and shells, including the most recent work published by the authors. Structure sensitivity analysis is used to evaluate the scaling factors to attain accurate distorted scaling laws. Finally, this study discusses the existing problems and the potential of the dynamic similitude theory for the analysis of vibration and shock problems of structures.
杨锐,王应时
《中国工程科学》 2003年 第5卷 第10期 页码 83-87
通过对2种不同类型的燃气轮机燃烧室的数值计算，研究了不同燃烧类型对燃气轮机燃烧室效率模化试验中压力指数选取的影响。结果表明，压力指数除受到燃料、余气系数等影响之外，燃烧类型也有很大影响。对于以碳氢化合物为燃料，化学反应控制类型燃烧室模化中N值相对较大，大致范围为1.6～2.0。当燃烧过程受扩散控制时， N值相对较小，大致范围为1.0～1.4。
标题 作者 时间 类型 操作
Balancing method without trial weights for rotor systems based on similitude scale model
Ruiduo YE, Liping WANG, Xiaojie HOU, Zhong LUO, Qingkai HAN
期刊论文
Similitude design for the vibration problems of plates and shells: A review
Yunpeng ZHU, You WANG, Zhong LUO, Qingkai HAN, Deyou WANG
期刊论文
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