When propellant is used in weapons with larger gas expanding ratio , the power capability accords with potential energy , and the power capability accords with impetus when gas expanding ratio is small 發(fā)射藥在氣體膨脹比大的武器上應(yīng)用時(shí),做功能力與潛能較為一致;在氣體膨脹比小的武器上應(yīng)用時(shí),做功能力與火藥力較為一致。
The results from simulation agree well with the conclusions of conference [ 21 ] , and indicate that the boundary conditions have no obvious effect on the displacement and stress ; that the displacement and stress increase with linear heat expanding ratio , and those decrease with the specific heat of material ; that the displacement increases with the heat transfer ratio , but the stress does not 數(shù)值模擬表明:邊界條件對(duì)位移和應(yīng)力的影響非常?。晃灰齐S著線熱膨脹系數(shù)、熱傳導(dǎo)系數(shù)的增大而增大,但是隨著比熱容的增大而減小;應(yīng)力的最大值隨著線熱膨脹系數(shù)的增大而增大,而隨著比熱容的增大而減小,而熱傳導(dǎo)系數(shù)k對(duì)應(yīng)力的影響比較小。