潛艇強度 的英文怎麼說
中文拼音 [qiántǐngqiángdù]
潛艇強度
英文
submarine intensity-
In the end of this thesis, basis on the structure dimension of a specifically submarine, some solutions for strengthening structure are discussed, such as increasing the thickness of shell, reducing the spacing of frames, increasing the bending inertial moments of frame and setting the intermediate stiffer, when the extreme diving depth becomes 450m or 600m. comparing these structure weights, the excellent solution is the lightest structure
本文最後以某核潛艇指揮艙的結構形式作為計算實例,對下潛深度分別增加到450米和600米的情況,選擇增加殼板厚度、縮小肋骨間距、增加肋骨尺寸以及加設中間支骨等加強方案,經分析確定其中結構重量最輕的方案為最佳設計方案。With the using of high strength steel and the development of the structure design, the fatigue strength becomes more and more prominent and the rules of design can no longer meet the demand of the design nowadays
由於新的高強度鋼材料的使用,和結構設計發展的需要,潛艇結構的疲勞強度問題更加突出,現行設計規范已經不能滿足設計的要求。Provided that the submarine structure strength is met, noise is vital to submarine battle ability
在保證潛艇結構強度的前提下,安靜性和隱身性對提高潛艇的戰鬥力至關重要。The using rules about the fatigue strength in " design and calculation standard for submarine structure " is worked out according to the standard that the ultimate time of submergence is less than 500
現行的「潛艇結構設計計算規則」中關于疲勞強度的設計,是按照極限下潛次數不超過500次的標準進行校核。The numerical simulation technique is used to study on the fatigue properties of submarine with high strength steel. the numerical simulation model is established and its feasibility is validated. at last, the possibility of establishing a kind of calculation and design methods of fatigue life in submarine structure is primarily analyzed
本文把疲勞裂紋閉合模型通過切片合成法引入到潛艇結構疲勞強度計算上來,建立了潛艇結構疲勞強度的數字模擬計算的數學模型,分析該方法在潛艇結構疲勞強度計算上應用的可行性,為建立一套計算和設計潛艇結構疲勞強度的方法作了初步的探討。The opening stress and the life of crack growth is calculated and compared with the test results and the experience formula. the feasibility of the newman theory of opening stress used in the high strength steel is validated. then through the slice synthesis method, the three dimension surface crack of the weld joint of cone - cylinder is decomposed into many plane through cracks
本文將基於裂紋閉合現象建立的帶狀屈服模型,用在平面貫穿裂紋中,計算此時的裂紋張開應力和疲勞裂紋擴展壽命,與試驗結果和經驗公式比較,驗證newman裂紋張開應力理論在高強鋼中的可行性;然後,用切片合成法,把潛艇結構凸錐柱結合殼焊縫處的三維表面裂紋分解成平面貫穿裂紋,用帶狀屈服模型的理論來分析平面貫穿裂紋,得到裂紋沿深度方向的擴展速率,進而得到潛艇結構的疲勞壽命。分享友人