復合結構航空測量耙振動應變測量試驗研究
發(fā)布時間:2019-06-09 12:13
【摘要】:研究了配裝航空發(fā)動機進氣道的常規(guī)測量耙和新研復合結構測量耙的組成結構。針對某型新研復合結構航空測量耙,開展了振動應變測量試驗與研究。研究結果表明:復合結構航空測量耙危險振型為Y向一階彎曲模態(tài),最大應變出現在耙體根部截面,最大應變值為688.96με(換算為應力即139 MPa),遠小于耙體材料的屈服極限。說明新研復合結構航空測量耙設計合理有效,為該類測量耙的研制及改進提供了必要依據。
[Abstract]:The composition and structure of conventional measuring rake and new composite structure measuring rake equipped with aero-engine inlet are studied. The vibration strain measurement test and research are carried out for a newly developed composite structure aerial survey rake. The results show that the dangerous mode of rake measured by composite structure is Y direction first order bending mode, the maximum strain appears in the root section of rake body, and the maximum strain value is 688.96 渭 蔚 (that is, 139 MPa), is much smaller than the yield limit of rake material). It is shown that the design of aerial survey rake with Xinyan composite structure is reasonable and effective, which provides the necessary basis for the development and improvement of this kind of measuring rake.
【作者單位】: 中國飛行試驗研究院;
【分類號】:V233
本文編號:2495548
[Abstract]:The composition and structure of conventional measuring rake and new composite structure measuring rake equipped with aero-engine inlet are studied. The vibration strain measurement test and research are carried out for a newly developed composite structure aerial survey rake. The results show that the dangerous mode of rake measured by composite structure is Y direction first order bending mode, the maximum strain appears in the root section of rake body, and the maximum strain value is 688.96 渭 蔚 (that is, 139 MPa), is much smaller than the yield limit of rake material). It is shown that the design of aerial survey rake with Xinyan composite structure is reasonable and effective, which provides the necessary basis for the development and improvement of this kind of measuring rake.
【作者單位】: 中國飛行試驗研究院;
【分類號】:V233
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