CAJ | 학술논문

确定不同参数下割缝筛管的抗挤压强度的变化趋势是合理设计割缝筛管的重要依据.利用CATIA软件,根据弹塑性有限元法建立了不同参数下割缝筛管强度分析的空间力学模型,该模型可以通过任意改变尺寸参数,对其抗挤压强度进行综合因素的有限元力学分析.结果表明:缝长是影响割缝筛管抗挤压强度的主要因素,在缝数和缝宽一定的情况下,随着缝长的增大抗挤压强度降低,不同缝长,降低的程度不同;在其他参数不变的情况下,缝间距变化对割缝筛管的抗挤压强度系数影响很小.研究结果为合理地选择割缝筛管的设计参数、提高其使用寿命提供了一定的理论依据.
학정불동삼수하할봉사관적항제압강도적변화추세시합리설계할봉사관적중요의거.이용CATIA연건,근거탄소성유한원법건립료불동삼수하할봉사관강도분석적공간역학모형,해모형가이통과임의개변척촌삼수,대기항제압강도진행종합인소적유한원역학분석.결과표명:봉장시영향할봉사관항제압강도적주요인소,재봉수화봉관일정적정황하,수착봉장적증대항제압강도강저,불동봉장,강저적정도불동;재기타삼수불변적정황하,봉간거변화대할봉사관적항제압강도계수영향흔소.연구결과위합리지선택할봉사관적설계삼수、제고기사용수명제공료일정적이론의거.
The important issue of appropriate slotted liner design is determining the collapsing strength changing trend of the slotted liner under different parameters. Steric mechanical model of slotted liner strength was established with different parameters as per elastoplasticity finite element method by using CATIC software. Finite element analysis on the comprehensive factors of slotted liner collapsing strength can be completed through changing any size input in the model. The results show that the primary effect factor of slotted liner collapsing strength is the length of slots, with same amout of slots and same slot width, slotted liner collapsing strength decreases as the length of slots increasing, the decreasing rate vary with different slot length. The slots space has a little influence on the collapsing strength of the slotted liner if other parameters are same. The research results provide theoretical criterion for slotted liner designing parameters selection and working life improvement.