﻿ 基于AMESim的筒盖系统建模与特性分析
 舰船科学技术  2017, Vol. 39 Issue (12): 158-162 PDF

1. 中国船舶重工集团第七一三研究所，河南 郑州 450015;
2. 河南省水下智能装备重点实验室，河南 郑州 450015

The cover system model and characteristic analysis Based on AMESim
WU Li-zhu1,2, ZHANG Jian-yu1,2
1. The 713 Research Institute of CSIC, Zhengzhou 450015, China;
2. The Underwater Intelligent Equipment Laboratory of Henan Province, Zhengzhou 450015, China
Abstract: The design of mechanical structure and hydraulic system of cover system directly affects the tactical index of the submarine to ground guided missile launcher, the opening time an angle are the main features of the cover system. In This paper, the influence regulation of the critical parameters of the cover system on the opening characteristics is revealed by numerical simulation, the simulation model cover system was established in AMESim environment, the effects of motor speed, pump displacement, overflow valve pressure, cover quality, cylinder stroke and other critical parameters on the opening characteristics were obationed. The results show that, the maximum flow allowed by the hydraulic system determines the opening time of the cover system, the load under the opening process is determined by the gravity of the cover and the back pressure formed by the proportional speed control valve, the stroke of the route of cylinder plays a decisive function in opening angle, the proportional speed control valve and control strategy decide the maximum flow of hydraulic system together.
Key words: the covers system     hydraulic system     simulation analysis     opening characteristics     AMESim
0 引 言

1 筒盖系统组成及工作原理 1.1 筒盖系统工作原理

 图 1 筒盖系统结构图 Fig. 1 Structure diagram of cylinder cover system
1.2 液压系统原理

1）筒盖开盖过程中，当开盖角度超过90°时，由于重力作用，油缸负载方向突然变化，回油节流调速使回路回油腔有一定背压，减小筒盖震动，增加缓冲效果，使筒盖运行速度平稳；

2）回油节流调速回路中，油液经节流阀发热后直接回油箱冷却，对液压系统泄漏量影响较小。

1）流量提升阶段A：比例调速阀电信号在3s内从0 V提升到18 V，此过程中井盖加速开盖，最终开盖角度大约为27°。

2）流量平稳阶段B：比例调速阀维持18 V电信号4 s，此过程中井盖平稳开盖，最终开盖角度大约为68°。

3）流量降低阶段C：比例调速阀电信号在3 s内从18 V降低到0 V，此过程中井盖开盖速度降低，通过流量节流增加开盖过程中背压，以减缓开盖到位过程中对机械挡块的撞击。

 图 2 液压系统原理简图 Fig. 2 Hydraulic system schematic diagram

 图 3 比例调速阀信号 Fig. 3 Proportional speed control valve signal
2 仿真模型

 图 4 筒盖系统仿真模型 Fig. 4 Simulation model of barrel cover system

 图 5 油缸位移 Fig. 5 Cylinder displacement

 图 6 开盖角度 Fig. 6 Opening angle

 图 7 比例调速阀流量 Fig. 7 Flow rate of proportional speed control valve
3 开关盖特性参数分析

3.1 电机转速

 图 8 电机转速对开盖特性影响 Fig. 8 The motor speed characteristics of the influence of open cover
3.2 液压泵排量

 图 9 液压泵排量对开盖特性的影响 Fig. 9 The motor speed characteristics of the influence of displacement of hydraulic pump
3.3 溢流阀压力

 图 10 溢流阀压力对开盖特性影响 Fig. 10 Effect of relief valve pressure on opening characteristics

3.4 筒盖质量

3.5 油缸行程

 图 11 筒盖质量对开盖特性影响 Fig. 11 Effect of cylinder cover quality on opening characteristics

 图 12 油缸行程对开盖特性影响 Fig. 12 Influence of cylinder stroke on opening characteristics
3.6 比例调速阀额定流量

 图 13 比例调速阀额定流量对开盖特性影响 Fig. 13 Influence of rated flow rate on opening characteristics of proportional speed control valve
4 结 语

1）液压系统的允许的最大流量决定了筒盖系统的开盖时间；在小于系统最大流量的范围内，流量越大，开盖时间越短；

2）开盖角度在91°之前筒盖的重力起到主要负载的作用；在开盖角度超过91°后，比例调速阀的背压起到主要负载作用；

3）油缸与筒盖的相对位置及比例调速阀的控制策略一定的情况下，油缸行程小于0.35 m时，油缸的行程决定了开盖角度；

4）比例调速阀的额定流量与控制策略共同决定液压系统的最大流量，控制策略一定情况下，比例调调速阀额定大于70 L/min后开盖时间和角度变化微小。

 [1] 倪火才. 潜地弹道导弹发射装置构造[M]. 哈尔滨: 哈尔滨工程大学出版社, 1998. [2] 李志红. 出口节流调速系统负载变化对液压缸压力的影响[D]. 长沙: 湖南农业大学, 2003 [3] 付永领, 祁晓野. AMESim系统建模和仿真—从入门到精通[M]. 北京: 北京航空航天大学出版社, 2006.