基于噪声声强最弱的泵控压机卸压特性研究.doc

文档介绍：
基于噪声声强最弱的泵控压机卸压特性
研究#
艾超1,2,3,孔祥东1,2,3,宋豫1,2,3,刘胜凯1,2,3,王光平1,2,3**
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10
(1. 先进锻压成形技术与科学教育部重点实验室(燕山大学),河北秦皇岛 066004;
2. 燕山大学河北省重型机械流体动力传输与控制实验室,河北秦皇岛 066004;
3. 燕山大学机械工程学院,河北秦皇岛 066004)
摘要:针对泵控压机液压系统卸压冲击问题,本文采用功率键合图的方法进行研究。首先,
建立了 RKP 泵及其它元件的功率键合图模型和以 RKP 泵为主控单元的泵控系统的功率键合
图模型。得到基于噪声声强最弱的理论卸压曲线,并通过仿真分析和实验验证,基于键合图
理论模型的仿真曲线与实测曲线吻合较好,并且具有较好的卸压效果。最后得出了理论卸压
曲线可获得最优的卸压特性。
关键词:机械电子工程;功率键合图;泵控压机;卸压特性
中图分类号:
15
The research of pressure-relief characteristics of
pump-controlled press based on the weakest sound intensity
AI Chao1,2,3, KONG Xiangdong1,2,3, SONG Yu1,2,3, LIU Shengkai1,2,3,
WANG Guangping1,2,3
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25
30
35
40
(1. Key Laboratory of Advanced Forging & Stamping Technology and Science (Yanshan
University), Ministry of Education of China, HeBei QinHuangDao 066004;
2. Hebei Provincial Key Laboratory of Heavy Machinery Fluid Power Transmission and Control,
Yanshan University, HeBei QinHuangDao 066004;
3. School of Mechanical Engineering, Yanshan University, HeBei QinHuangDao 066004)
Abstract: According to the problem of the pressure-relief shock of the hydraulic system of
pump-controlled press,this paper used the method of power bond graph to study. Firstly, the model
of the power bond graph of RKP pumps and ponents were established, and the model of
power bond graph of pump-controlled system which the RKP pump as the main control unit was