Experimental Study of Motion Characteristics for Simulated Projectile

摘要：

　　Simulated projectile is used to evaluate measurement uncertainty of fragment velocity measurement system for its stable motion characteristics.Motion characteristics of simulated projectile will influence velocity measurement systems measure uncertainty evaluation,and it is necessary to analyze its motion characteristics.Experimenting with light screen velocity measurement system which is unbiased,consistent and efficient.Establishing simulated projectiles motion distance-time model by the least squares method to calculate simulated projectiles displacement-velocity data,evaluate simulated projectiles displacement-velocity characteristics under uniformly variable motion.Results show that velocity-displacement curves linearity under uniformly variable motion is smaller than three thousandths,that is to say,simulated projectile makes uniform variable motion and meets the requirements for assessing fragment velocity measurement systems measurement uncertainty.

关键词： Simulated Projectile Light Screen Velocity Measurement System Least Squares Principle

作者: Yu HANG Fang WANG Chunlin YI Fan YANG Weizheng CHEN

作者单位: School of Mechanical Engineering,Nanjing University of Science and Technology,Nanjing 210094,P.R.Chi Xian Modern Chemistry Research Institute,Shan Xi Xian 710065,P.R.China

会议类型: 国际会议

会议名称: The 5th International Conference on Mechanical Engineering and Mechanics(第五届国际机械工程与力学会议)

会议地点: 江苏扬州

会议语种:英文

页码: 486-490

在线出版日期: 2014-08-21（万方平台首次上网日期，不代表论文的发表时间）