In the paper, the research on the quality of rolled stepped shaft for overcoming geometrical limitation and standard design of 3-roll cross wedge rolling mill is reported.
对三辊楔横轧轧件质量、克服几何限制条件措施及轧机定型设计等进行了研究。
Because of the smaller ratio of slenderness, the theory of Timoshenko beam is more suitable than Bernoulli-Euler beam's for analysis of the dynamic behavior of stepped shaft.
由于这类轴具有较小的长径比，因此，在分析它的振动时，采用铁木辛柯梁理论比欧拉梁理论更为合适。
Taking a stepped shaft as example, the paper shows the part information expressed with the part description model based on ontology can describe the part rationally and effectively.
以某阶梯轴为例，表明利用基于本体的零件描述模型对零件信息进行表达，可以更加合理有效地描述领域本体知识库中的零件信息。
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