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六、锤击振动试验方法的精度分析为证明本方法的精度,用等直梁(1207×49×10毫米)进行计算和试验,其固有频率的计算及试验值见表1,振型比较见图9、10。
VI. HAMMER VIBRATION TEST METHOD ACCURACY To prove the accuracy of this method, the calculation and test of the natural frequency with straight beam (1207 × 49 × 10 mm) are shown in Table 1. For the comparison of modes Figure 9,10.