摘要 本文使用SolidWorks軟體建立彈體模型,以及使用ADAMS模擬彈體飛行過程,彈體從發射、脫殼、張傘、降落傘減速以至於著海過程、下沉、上升至漂浮,完成時序分析,完成飛行之全部過程之動態模擬。 彈體被視為3D運動之剛體,由脫殼動力學及氣體動力學,推導出彈體在發射、脫殼及降落傘等受力之方程式;並根據初始條件及彈體形狀,經驗得到空氣升力與空氣阻力係數,導入ADAMS分析軟體中,完成彈體飛行模擬實驗。 模擬彈體飛行時,討論風速、初速度、發射角度、脫節力與脫節力持續時間對於彈體上之影響,以及天線展開機構之模擬,由ADAMS模擬實驗各種條件情況,且預測出精確之彈體的飛行路徑與落點。
Abstract This study model the sabot discard projectile body by SolidWorks software and simulate the process of all dynamic behavior of the projectile body by ADAMS software. The process is moderated landed from shooting, shelling, and the parachute’s deceleration. Sabot discard flight of dynamic simulation regards as 3D rigid body structure. Shelled dynamics and aerodynamics, derive out the equation of the projectile body which is shooting, shelling, and parachute’s landing, and receive the lift and drag coefficients, and put them into ADAMS , and finish the simulated flight of the projectile body. This study discusses the projectile body’s influence of wind velocity and initial velocity and shooting angle and sabot discard force and escape time on the projectile body, and the simulation of the expanded antenna mechanism. By various kinds of situations of ADAMS simulation predict the flight route and position of the projectile body.