NDLI: Parameters optimization design of air-liquid-combined impact pickaxe

Content Provider	IEEE Xplore Digital Library
Author	Xinglong Zhang Shengli Song Zhitao Tan Yang Chen
Copyright Year	2013
Description	Author affiliation: Dept. of Mech. Eng., PLA Univ. of Sci. & Tech, Nanjing, China (Xinglong Zhang; Shengli Song; Zhitao Tan; Yang Chen)
Abstract	Parameters optimization design of a new light air-liquid-combined impact pickaxe is proposed in this paper, which contributes to an outstanding performance of impact pickaxe. Firstly, kinetics analysis of impact pickaxe with three-segment method was made and kinetic equations were established to simplify abstract problems to mathematical models. Secondly, mathematical optimization models were established to solve the multi-objective optimization design problems; In which, design variables, such as, initial volume and pressure of nitrogen chamber, action area of piston rod, resistance coefficient of piston and working pressure are fully concerned to make objective functions of energy and flow minimum. Thirdly, a nonlinear dynamic model of the hydraulic pickaxe was established, a best stroke process was gotten with improved Euler method. Finally, the optimization parameters of impact pickaxe was determined, which is of small size, high performance. Besides, impact points experiment are used to testify impact performance of pickaxe. After repeated impact tests, impact energy date was ascertained by 58J, which is slightly smaller than theoretical value, but right and reasonable compared with the theoretical value.
Starting Page	326
Ending Page	331
File Size	2090252
Page Count	6
File Format	PDF
ISSN	23250690
e-ISBN	9781479925193
DOI	10.1109/ICAMechS.2013.6681802
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-09-25
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Pistons Impact pickaxe Stroke Impact energy Optimization design Improved Euler method Working flow Nitrogen Artificial intelligence Optimization
Content Type	Text
Resource Type	Article

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