CAJ | 학술논문

分析了反向扩孔气动冲击器工作原理，并对活塞进行运动和动力学分析，建立活塞运动的微分方程组；对工作过程中冲击器内三个气腔的容积和压力变化规律进行分析，建立活塞在不同运动阶段期间三个气腔的容积和压力变化方程组，以及活塞在不同运动阶段期间三个气腔间气体质量交换的流量方程组。通过上述研究建立反向扩孔气动冲击器工作过程的数学模型和仿真方法。研究冲击器的性能参数与结构参数之间的理论关系，在此基础上建立冲击器的优化设计方法，为反向扩孔气动冲击器的应用提供理论支持。
분석료반향확공기동충격기공작원리，병대활새진행운동화동역학분석，건립활새운동적미분방정조；대공작과정중충격기내삼개기강적용적화압력변화규률진행분석，건립활새재불동운동계단기간삼개기강적용적화압력변화방정조，이급활새재불동운동계단기간삼개기강간기체질량교환적류량방정조。통과상술연구건립반향확공기동충격기공작과정적수학모형화방진방법。연구충격기적성능삼수여결구삼수지간적이론관계，재차기출상건립충격기적우화설계방법，위반향확공기동충격기적응용제공이론지지。
The piston's differential motion equations were built based on the working principles of reverse countboring pneumatic impactor as well as the kinematics and dynamics of the piston.The variations of three air chambers volume and pressure in impactor were analysed in working process.The volume and pressure variation equations of the three chambers and the flow equations of gaseous mass exchange among the three chambers were built in different moving stages of the piston.Based on the above study,a mathematical model and a simulation method of the working process of reverse counterboring pneumatic impactor were set up.The relationships between performance parameters and structure parameters of impactor were studied theoretically.On this basis,an optimization design method of impactor was proposed. The results provide theoretical support to the application of reverse counterboring pneumatic impactor.