CAJ | 학술논문

本文针对小麦发育后期倒伏问题，同时考虑风荷载和自重共同作用对小麦的影响，利用多自由度系统振动的理论建立了具有五自由度的小麦力学模型，计算出一定风级下对小麦根部产生的倒伏弯矩。由于根部复杂的根须分布情况，文章提出了整体的扩底桩模型，给出了根部对地表的抗倒伏弯矩的计算公式，并对比两种弯矩对小麦是否发生根倒伏做出预测。
본문침대소맥발육후기도복문제，동시고필풍하재화자중공동작용대소맥적영향，이용다자유도계통진동적이론건립료구유오자유도적소맥역학모형，계산출일정풍급하대소맥근부산생적도복만구。유우근부복잡적근수분포정황，문장제출료정체적확저장모형，급출료근부대지표적항도복만구적계산공식，병대비량충만구대소맥시부발생근도복주출예측。
By using multi-freedom systems vibration theory, we establish the mechanical model of wheat lodg-ing resistance under the wind of wheat and self-weight. On the basis of this model, wheat is regarded as a plastic material. Combined with the third strength theory, the stress of section can be calculated. As a result of the com-plex distribution of root, we put forward an expanding pile model, and a function of calculating the stress of sec-tion. We then compare two kinds of stress of sections to predicate whether the wheat will lodge.