n.分叉;分岐;分岐點(diǎn)
The primary resonance bifurcation problems are discussed for an arch structure with parametric and forced excitation. 摘要研究拱型結(jié)構(gòu)在參數(shù)激勵(lì)與強(qiáng)迫激勵(lì)聯(lián)合作用下的主共振情形的分叉問(wèn)題。