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文献[1]用加权余量法把魏氏(Westergaard)的经典解推广到部份吸收库底条件上,获得了成功。这种解法的实质是以经典解的形式为基础,变动经典解的级数系数,使其适应更复杂的边界条件。因此,更确切地说,应叫做变动系数法,而加权余量法,只是用来决定级数系数的一种手段。近几年笔者曾见到一些用此法获得成功的例证,感到有两个问题值得注意。现作讨论如下。
The literature [1] uses the weighted residual method to generalize Westergaard’s classical solution to partial absorption bottom conditions and has achieved success. The essence of this solution is based on the form of classical solutions, changing the coefficients of the series of classical solutions to adapt to more complex boundary conditions. Therefore, more precisely, it should be called the coefficient of variation method, and the weighted residual method is just a means to determine the coefficient of the series. In recent years, the author has seen some examples of successful use of this method, and feel that there are two problems worth noting. The discussion is as follows.