落震試驗 的英文怎麼說
中文拼音 [làzhènshìyàn]
落震試驗
英文
drop test-
With an analysis of soil liquefaction potential for free field of nanjing metro line 1 under 7 degree earthquake, as well as for excavated field, in line with railway engineering anti - earthquake design specification, dynamic triaxial tests and theoretical analysis using efficient stress method, the author comes to the conclusion that, when metro plate is located at layer s and the layer is thick, liquefied area is at metro bottom plate ; in some local section liquefied area is at metro top plate, or arch sides at the top of metro in most places
摘要採用鐵路工程抗震設計規范、動三軸試驗及有效應力的理論分析相結合的方法，對南京地鐵南北線（ 1號線）區間隧道開挖后其地基土在7度地震情況下的土層液化情況進行分析得出：當隧道底板坐落在5層且5層較厚時的液化區出現在隧道襯砌底板處；局部地段液化區出現在隧道頂部及拱腰；大部分地段的液化區出現在隧道頂板上方。In this paper, the mathematics model and simulation model of the passive landing gear shock absorber was built, and was verified by drop test. aimed at acquiring suitable efficiency diagrams, two simple semi - active control algorithms were designed. the mathematics model and simulation model of the semi - active landing gear shock absorber was built
在本文中，建立了被動控制起落架緩沖系統數學模型和模擬模型，並通過落震試驗對該模型進行參數校驗；以合適的功量圖為控制目標設計出兩種半主動簡單控制律，建立了半主動控制起落架緩沖器數學模型和模擬模型；通過數字模擬對這兩種控制方法進行了比較，認為半主動控制較被動控制有很大的優越性。Then the horizontal load to aeroplane undercarriage tyre can be obtained more accurately by making use of the proposed model and results of drop - test simultaneously
根據起落架落震試驗結果和該數學模型，可以得到考慮動態效應的起落架機輪水準載荷。The mathematic model of predicting the horizontal load subjected to aeroplane undercarriage tyre based on the drop - tests was built by analyzing dynamic loads acting on drop - test platform which is supported by three - poles, and the coefficients in the mathematic model were determined by means of the least - square method according to the results of static tests
摘要通過分析3點支撐落震平臺的動態受力情況，確定了起落架機輪投放到落震平臺上后，落震平臺水準方向的各種載荷情況，從而利用測量落震平臺水準載荷的間接測量方法，建立了起落架機輪水準載荷測量方法的數學模型， ?採用在落震試驗臺水準方向上進行試驗標定的方法，確定了數學模型中的有關待定系數。分享友人