Vibration分析无法输出力的结果
警告信息如下：WARNING: While processing expression "FY(43)" for MODEL_test.Output_T4.output_channel_variable
the use of an FX, FY, FZ, FM, TX, TY, TZ or TM measure
using only a single marker argument was detected.Whereas
in the F77 Solver this measures the sum of *action-only*
forces acting at this marker, in the C++ Solver the total
sum of *all* forces acting on the marker is measured.Please
adjust your model accordingly
但是位移和模态是有输出结果的，请大神帮忙看看到底是什么问题。
测的是一个弹簧力输出，弹簧一端与大地相连，一端与Part相连，在part上加载正弦载荷，测量弹簧与大地点相连的marker的输出力。
是否是需要增加一个弹簧的质心marker？
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