CAJ | 학술논문

对小麦茎秆进行受力分析，运用挠曲线近似方程的叠加，势能驻值原理，建立了茎秆在穗重和风载双重作用下茎秆抗倒伏的精确模型，并给出临界风力的具体表达式。结果表明：茎秆的高度越高，承载的临界力越小，但并不是简单的反比例关系；抗弯刚度与倒伏临界力成显著的正线性相关；单穗重的增加也会降低抗倒伏临界力。
대소맥경간진행수력분석，운용뇨곡선근사방정적첩가，세능주치원리，건립료경간재수중화풍재쌍중작용하경간항도복적정학모형，병급출림계풍력적구체표체식。결과표명：경간적고도월고，승재적림계력월소，단병불시간단적반비례관계；항만강도여도복림계력성현저적정선성상관；단수중적증가야회강저항도복림계력。
Mathematical model for wheat stem lodging resistance is considered during its later growth period. Through the mechanical analysis of wheat stalk,by applying adding approximate equation of deflection curve and principle of resident potential energy,a accurate lodging resistance model under the ear weight and wind is established.Moreover,the formula of critical force is given.Results indicated that:relationship between wheat stem height and the critical force is not simple inverse proportion;there is a notable positive linear correlation between bending rigidity and critical force;single spike weight increased will also reduce the critical force of lodging resistance.