【摘要】 对大型斗轮挖掘机臂架,通过考虑局部动力效应,推导了在地震荷载作用下结构单元的修正公式.计算结果表明,考虑局部动力效应,可以使计算结果更为精确.在进行大型复杂结构的动力响应分析时,考虑局部效应可获得较为精确的计算结果.更多还原

【Abstract】 The modified formula for the boom of large complicated bucket wheel excavator has been put forward under earthquake,included the local dynamic effect.Considering the influence of local dynamic effect,the result of calculating is more accurate.When the dynamic response of a large complicated structure is analyzed,a more precise result and a more simplified calculation model will be got if the local dynamic effect is considered.更多还原