【摘要】 本文讨论了热力学非对称理论以及目前应用它的过程中存在的问题，在此基础之上编制了改进的程序，可以更深人地理解脉冲管的内部过程．从给出的一些计算结果来看，计算的精度可能会提高２０％以上更多还原

【Abstract】 In this article, the theory of thermodynamic non-symmetry effect and some problems in using this theory by former researchers are discussed. Then we give a modified simulation procedure to improve calculation accuracy. Understanding of mechanism inside pulse tube refrigerator is thus further deepened. Some results are given for comparison, which shows that accuracy of refrigeration power and mass flow rate calculation may improve by over 20%.更多还原