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于OptiStruct拓扑优化模态老是出现下面这个问题,求指教,万分感谢,急
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在OptiStruct中做一个光学支架的拓扑优化,要求是模态频率不能低于120Hz,运算中总是出现下面这个问题,不知道怎么解决,求指导,万分感谢,急!!
上面说 mode number 1 used in the optimization problem > number of modes found 0 Increase frequency range and/or number of modes within corresponding EIGRL card in input data and rerun model
上面说 mode number 1 used in the optimization problem > number of modes found 0 Increase frequency range and/or number of modes within corresponding EIGRL card in input data and rerun model