将气囊隔振器应用于舰船浮筏隔振装置,通过控制气囊充、排气可实现浮筏的姿态调整。目前以气囊工作高度为指标的控制方法,存在各个气囊压力分布不均和调节过程振荡的问题,针对该问题提出一种基于气囊工作高度、实际压力与最优压力偏差的浮筏姿态控制策略。将调整分为高度调整和水平姿态调整2个阶段:首先采用模糊控制快速将输出轴调整到对中高度,然后以“高排低充”的策略精确调整浮筏水平姿态。试验结果表明,该控制策略能更加快速、平稳、精确地调整浮筏姿态。
Air springs are equipped on ship floating raft vibration isolation system, and the attitude adjustment of floating raft can be realized by controlling the air bag charging and discharging. To solve the control problem of pressure distribution and raft oscillating in the course of raft's attitude adjustment, an control strategy is proposed based on air spring's height and press, which contains two stages: first, output shaft alignment is achieved using fuzzy control; then, using a strategy of ‘high-discharge or low-charge’ to adjust the horizon attitude precisely. Tests are carried out to verify the efficacy of this strategy, and the test results indicate that the designed control system is effective.
2016,38(9): 49-53 收稿日期:2016-4-27
DOI:10.3404/j.issn.1672-7619.2016.09.009
分类号:TP273
基金项目:国家自然科学基金资助项目(50909046)
作者简介:吴金波(1974-),男,副教授,研究方向为舰船运动仿真、水下机器人的操作与控制。
参考文献:
[1] 徐伟, 何琳, 吕志强, 等. 船舶主机气囊隔振系统动态特性分析[J]. 振动与冲击, 2007, 26(7): 122-124.XU Wei, HE Lin, LV Zhi-qiang, et al. Dynamic analysis of an air spring mounting system for marine main engine[J]. Journal of Vibration and Shock, 2007, 26(7): 122-124.
[2] 刘增华. 铁道车辆空气弹簧动力学特性及其主动控制研究[D]. 成都: 西南交通大学, 2007.LIU Zeng-hua. Study on the dynamics characteristic and active control of air spring on railway vehicle[D]. Chengdu: Southwest Jiaotong University, 2007.
[3] 何琳, 赵应龙. 舰船用高内压气囊隔振器理论与设计[J]. 振动工程学报, 2013, 26(6): 886-894.HE Lin, ZHAO Ying-long. Theory and design of high-pressure and heavy-duty air spring for naval vessels[J]. Journal of Vibration Engineering, 2013, 26(6): 886-894.
[4] 卜文俊, 单树军, 胡宗成. 基于模糊控制的超静定、多变量耦合空气弹簧隔振系统姿态控制[J]. 振动与冲击, 2007, 26(11): 174-177.BU Wen-jun, SHAN Shu-jun, HU Zong-cheng. Attitude control of statically indeterminate and multivariable coupling air spring vibration isolation system based on fuzzy contrller[J]. Journal of Vibration and Shock, 2007, 26(11): 174-177.
[5] 施亮, 何琳, 徐伟, 等. 船舶主机气囊隔振装置的对中可控性[J]. 海军工程大学学报, 2011, 23(5): 27-30, 35.SHI Liang, HE Lin, XU Wei, et al. Alignment controllability of ship main engine air suspension system[J]. Journal of Naval University of Engineering, 2011, 23(5): 27-30, 35.
[6] NIETO A J, MORALES A L, GONZÁLEZ A, et al. An analytical model of pneumatic suspensions based on an experimental characterization[J]. Journal of Sound and Vibration, 2008, 313(1/2): 290-317.
[7] 戚壮, 李芾, 黄运华, 等. 高速动车组空气弹簧垂向动态特性研究[J]. 机械工程学报, 2015, 51(10): 129-136.QI Zhuang, LI Fu, HUANG Yun-hua, et al. Study on the vertical dynamic characteristics of air spring used in high-speed EMU[J]. Journal of Mechanical Engineering, 2015, 51(10): 129-136.
[8] 张亚洲. 船舶推进装置-气囊隔振系统校中特性研究[D]. 西安: 西安科技大学, 2013.Zhang Ya-zhou. The study of the marine propulsion system alignment with air spring vibration isolation system[D]. Xi'an: Xi'an University of Science and Technology, 2013.
[9] 吕志强, 施亮, 赵应龙. 气囊浮筏隔振装置姿态控制问题[J]. 振动与噪声控制, 2013, 33(1): 40-43.LV Zhi-qiang, SHI Liang, ZHAO Ying-long. Attitude control of air spring raft isolation system[J]. Noise and Vibration Control, 2013, 33(1): 40-43.
[10] 许福玲, 陈尧明. 液压与气压传动[M]. 2版. 北京: 机械工业出版社, 2004.XU Fu-ling, CHEN Xiao-ming. Hydraulic and pneumatic transmission[M]. 2nd ed. Beijing: China Machine Press, 2004.
[11] 师黎, 陈铁军, 李晓媛, 等. 智能控制理论及应用[M]. 北京: 清华大学出版社, 2009.SHI Li, CHEN Tie-jun, LI Xiao-yuan, et al. Intelligent control theory and its application[M]. Beijing: Tsinghua University Press, 2009.