Inverse approach to determine piston profile from impact stress waveform on given non-uniform rod

来源期刊：中国有色金属学报(英文版)2001年第2期

论文作者：朱萍玉 刘德顺 彭佑多 陈安华

文章页码：297 - 300

Key words：impact; piston profile; non-uniform rod; inverse numerical approach; stress waveform

Abstract: An essential problem in the design of mechanical impact systems is the impact of a piston on a rod. The impact of a semi-finite cylindrical piston on a non-uniform rod was studied. Based on wave mechanics and characteristic line theory, an inverse numerical approach to determine the piston profile was proposed, by means of which the geometry of an impact piston may be determined from the given stress waveform for a given rod profile. Numerical results show that the given stress waveform may be produced by means of the alternatives of design of piston and rod. There is good agreement between the experimental results and numerical results.