shell-to-shell distance 中文意思是什麼
shell-to-shell distance
解釋
容器外殼間距離-
Consulting about foreign study, the research showed that the speed of firing can be improved by modifying the machanism of the automatic, and at the same time two problems must be solved, one is that more mechanisms should act at the same time to reduce the time of the whole actions of automatic mechanisms, the other is that the time of each mechanism ' s action should be reduced. the time can be reduced by several ways. the first one is to reduce the mass of mechanism, the second one is to increase the force applied on the mechanism and reduce the resistance, the third one is to shorten the working distance, the fourth one is to give abstention and cushion to mechanism before action ends. this thesis includes the following topics : discussion of the theory of the automatic and shell - swing design, establish the kinematic and dynamic models of the main structures in automatic and perform the corresponding mechanical analysis, set up a compendious cyclical diagram for the automatic ; the computer simulation to the navy gun ' s firing parts
由現有艦炮自動機循環圖可知，制約射速提高的幾個因素是：後座、復進佔用的時間較長，約占總循環時間的三分之一；供彈機的動作單獨佔用循環時間，且較長；輸彈機的輸彈時間較長；各機構動作重疊少；參考國內外的研究情況，本文提出了在採用改進完善現有自動機機構來提高射速時，必須考慮以下兩點： （ 1 ） 、力求在同一時間內能使更多的機構參與工作，並處理好各動作之間的銜接（即介面技術） ，以便縮短整個自動機的動作循環時間。 -
By measuring pressure induced by dynamiting which located various positions of the circular shell, the localizational effect of impact force on the circular shell is disclosed. also, pvdf piezofilms are used to determine accurate time while projectile contacting target, accurate time while two interfaces of the target contacting at a initial distance of 5, and the contacting pressure between the two interfaces when the projectile is in 500m / s to looom / s. experimental results, which are consonant with computer simulation, supply support to engineering
通過對化爆模擬加載試驗中柱殼不同角度壓力的監測，揭示了化爆模擬產生的壓力局域化效應，為進一步模擬設計提出研究的方向；採用pvdf壓電薄膜來監測彈靶碰撞的時刻、細小間隙的閉合時間以及由此產生的壓力變化，通過對pvdf壓力計測試結果分析以及和數值模擬結果的比較，獲得規律性的認識，為進一步的應用提供了技術支持。 -
Studies the shield and anti - jamming techniques and designs the shield shell. designs the transmit microcircuit adapts to the far distance transmission. using the passive high - precision current transformer founds a method to measure dielectric loss based on fft which can eliminate effects of harmonic and current frequency excursion and conducts an experiment
利用所研製的高精度無源單匝穿心式小電流互感器，建立了一種基於fft的介質損耗測量方法，它可以有效地消除諧波和工頻信號波形不工整的影響，並進行了實驗驗證。
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