[1]
S L Semiatin. ASM Handbook Volume 14A, Metalworking: Bulk Forming [M]. AP Almere: ASM International N.V., 2005.
Google Scholar
[2]
CHEN Hua. Effect of forging process parameters on re-crystallization behavior of 7050 aluminum alloy [J]. Aluminum Fabrication,2007,(3):33-35.
Google Scholar
[3]
LIANG Xin, CHEN Kang-hua, CHEN Xue-ha. Effect of isothermal forging rate on microstructure and properties of 7085 aluminum alloy [J]. Materials Science and Engineering of Powder Metallurgy, 2011, 16(2):290-295.
Google Scholar
[4]
Bosch Group.4-way directional servo-valve.RE29564 [M/OL]. Stuttgart: Bosch Rexroth AG, Industrial Hydraulics, 2003 [2012-07-17]: http://www.boschrexroth. com/RDSearch/rd/r_29564/re29564_2010-09.pdf.
Google Scholar
[5]
Herbert E. Merritt. Hydraulic Control Systems [M]. Cincinnati: John Wiley & Sons, 1967:174-223.
Google Scholar
[6]
Easy5 Support Team, Boeing Mathematics and Computing Technology. Thermal Hydraulic library User Guide for Version 4.1 [M]. Santa: MSC.Software, 2002:VI.1-VI.7.
Google Scholar
[7]
Bosch Group. Meter-in pressure compensator, direct operated Type ZDC, RE 29 224/02.03 [M/OL]. Stuttgart: Bosch Rexroth AG, Industrial Hydraulics, 2003 [2012-07-17].http://www.boschrexroth.com/country_units/america/united_states/en/Products/bri/Products_and_Catalogs/a_download/re29224_0203328417.pdf?searchQuery=zdc.
Google Scholar
[8]
ZHANG Li-ping. Hydraulic control system and design [M]. Beijing: Chemical Industry Press, 2006:240-241.
Google Scholar
[9]
Jinhua Zhang, Jian Zhuang, Haifeng Du, Sun'an Wang. Self-organizing genetic algorithm based tuning of PID controllers [J] .Information Sciences, 2009, 179(7): 1007-1018.
DOI: 10.1016/j.ins.2008.11.038
Google Scholar
[10]
Rong-Maw Jan, Chung-Shi Tseng, Ren-Jun Liu. Robust PID control design for permanent magnet synchronous motor: A genetic approach. Electric Power Systems Research, 2008, 78(7):1161-1168.
DOI: 10.1016/j.epsr.2007.09.011
Google Scholar
[11]
C. Canudas de Wit, H. Olsson, K. J. htrom, P. Lischinsky. A New Model for Control of Systems with Friction. IEEE TRANSACTIONS ON AUTOMATIC CONTROL, 1995, 40(3):419-425.
DOI: 10.1109/9.376053
Google Scholar
[12]
Xuan Bo Tran a, Nur Hafizah, Hideki Yanada. Modeling of dynamic friction behaviors of hydraulic cylinders. Mechatronics, 2012, (22): 65–75.
DOI: 10.1016/j.mechatronics.2011.11.009
Google Scholar