HTRI换热器振动分析？ 这是个很好的议题。 请原谅我的某些可能的欠缺和对于标准的可能的不完全理解。 我个人认为不管你用何种官方发布的或者通用方法计算显示有振动可能都要进一步振动分析。如果你是遵照gb151设计的那么就不可豁免。 就gb151, e3 振动的判据:e3.2 b)对于顺排管束，按公式（e16）计算的无因次共振参数ψ 2000 和htri 的chen number 定义类似。 请参照 htri report stv-12, updated methods to predict acoustic vibration in heat exchangers, para. 3.1 current htri method. “chen and yung [10] indicated that acoustic vibration did not develop unless the value of ψ was greater than 2000 and that strong acoustic vibration did not develop until ψ exceeded 4000. the method used by htri software for predicting acoustic vibration, which is based on the results of the comparative study of acoustic vibration criteria by eisinger et al.[5], can be summarized as follows: • a frequency match must exist for acoustic vibration (i.e. 0.8fe =4000, acoustic vibration is probable. • if fa1 1.2fe and ψ =1300, the user is prompted to explore resonance at higher order modes.查看更多
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