摘要
舰用设备抗冲击性能的频域分析是一种常用的工程评估方法。建立了某型柴油机的有限元模型,通过主要部件的模态试验进行了修正。根据国军标GJB1060.1-91的规定,基于DDAM方法确定了计算模型的冲击输入,并对柴油机模型在三向冲击输入下的冲击响应进行了分析。结果表明,柴油机抗冲击性能的频域分析是一种有效的评估方法,通过评估,该柴油机模型符合国军标的要求。
The frequency domain analysis of marine equipment anti-shock capacity is a common engineering evaluation method.A finite element model of a diesel was established,and modified using the modal tests of its main components.According to GJB1060.1-91,the shock load of the computation model was cletermined based on the DDAM method.Then,its shock response was analyzed under each shock load.The results indicated that the frequency domain analysis of marine equipment anti-shock capacity is an effective evaluation method,and this diesel model meets the requirement of the GJB.
出处
《振动与冲击》
EI
CSCD
北大核心
2010年第11期171-176,共6页
Journal of Vibration and Shock
基金
国家自然科学基金(10672181)
海军十一五预研究项目(401030502)
