| 苏文献，蔡玉珺，范正炼，施卿海.基于有限元模拟的换热管与折流板碰撞研究[J].轻工机械,2017,35(1):25-29 |
| 基于有限元模拟的换热管与折流板碰撞研究 |
| Study of Collision of Heat Exchange Tube and Baffle Plate Based on Finite Element Analysis |
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| DOI：10.3969/j.issn.1005-2895.2017.01.006 |
| 中文关键词: 换热管 折流板 碰撞力 ANSYS非线性瞬态分析 |
| 英文关键词:heat exchange tube baffle plate collision force ANSYS nonlinear transient analysis |
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| 中文摘要: |
| 为了研究换热管与折流板的碰撞特性，基于漩涡脱落原理，建立了换热管振动的简化模型，并利用ANSYS非线性瞬态分析，研究简化模型分别在不同的间隙、流体力下换热管与折流板碰撞力随时间的变化规律。结果表明：当流体力偏大时，间隙越大，碰撞力越大；当流体力偏小时，间隙越大碰撞力越小。流体力越大，换热管与折流板之间的碰撞力
越大，但增长速率随流体力的增大而减小。 |
| 英文摘要: |
| ln order to study the collision characteristics of the heat exchange tube and the baffle plate, a simplified model of the heat exchange tube vibration was established based on vortex shedding principle, and the ANSYS nonlinear transient analysis was used to analyze the heat pipe and baffle plate collision force changing with time of simplified model respectively in different gap, the fluid force. The results showed when the fluid force was larger, the gap was bigger, the collision force was bigger; when the fluid force was smaller, the gap was bigger, the collision force was smaller. The
greater the fluid force, the greater the collision force between the heat exchange tube and the baffle plate, but the growth rate would decrease with the increase of the fluid force. |
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