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The research has important reference value for the theory analysis of hybrid systems and engineering applications. 1 Introduction Aircraft tractor is a kind of important ground airport equipment, mainly used for moving a plane on the ground to minimize the running time of the aircraft engine [1].
With the continuous development of civil aviation, the demand of the aircraft tractor's quantity and performance is higher and higher.
Table 5 the pressure of the hybrid system and the driving mode of the vehicle when towing different aircraft models Aircraft weight (t) 70t 120t 150t 230t 280t System pressure (MPa) 16.82 16.87 20.25 16.89 21.56 Driving Mode 2WD 2WD 2WD 4WD 4WD 5 Conclusions The hybrid vehicle's practical engineering constraints, the design of vehicle performance indicators and the mutual effects of the components in the power system are analyzed.
Chen, "Hybrid Electric Vehicle Parameters Multi-objective optimization based on Genetic Algorithm", Automotive Engineering, Vol.31, issue 1, 60-64, 2009 [9] W.H.
Ji, "Genetic - Simulated Annealing Algorithm Applied to Optimization of Hydraulic Manifold Design", Chinese Mechanical Engineering, Vol.17, 2021-2025, 2007

ANSYS materials set Double-click the Engineering Data sets the structure of the material, and in the window [8], setting the density of a cross shaft is7800kg/m3, Poisson's ratio is 0.25, and the elastic modulus is 2.07e11 as shown in Figure 3.
The Eighth National Conference on Earthquake Engineering, 2010: 291-297
Earthquake engineering and engineering vibration, 2008, 28 (3): 74-87
Engineering mechanics, 2011, 25 (6): 38-43
Journal of civil engineering, 2011, 41 (6): 1-8

Study on the safety monitoring and control technology of artificial island construction on radiating sandbar Zhongling Zong1, a, Zhendong Zhang1 , Dongrui Yao1 1College of Civil Engineering, Huai hai Institute of Technology, Lianyungang 222000, China adongfangansys@163.com Keywords: radiating sandbar; artificial island; safety monitoring; control technology; numerical simulation.
Yu: China Harbour Engineering, (2008) No.1, p.8-12.
Yu: Port & Waterway Engineering, (2009) No.3, p.94-103.
Cai: Port & Waterway Engineering, (2011) No.9, p.1-8.
Wang: Port Engineering Technology, Vol. 48 (2011) No.4, p.36-37.

Error Analysis of 4-Crossing Hall Sensor with Frequency Domain in Measurement of Material Imperfection Sirisuk Suwannasuk1, a, Witsarut Sriratana2, b * and Riichi Murayama3, c 1, 2Faculty of Engineering, King Mongkut’s Institute of Technology Ladkrabang, Bangkok 10520, Thailand 3Department of Intelligent Mechanical Engineering, Faculty of Engineering, Fukuoka Institute of Technology, Fukuoka 811-0295, Japan asirisuk_suwan@hotmail.com, bkswitsar@kmitl.ac.th, cmurayama@fit.ac.jp Keywords: 4-crossing Hall sensor, Frequency domain, Measurement, Material, Non-destructive.
William and Palm III, Introduction to MATLAB for Engineers, McGraw-Hill Companies, Inc., 2011
Walsh, An Engineer’s Guide to MATLAB-with Application from Mechanical, Aerospace, Electrical, Civil and Biological Systems Engineering, Pearson Education, Inc., 2011
Murayama, Analysis of Hall Effect Sensor Placement Based on Frequency Domain, The Society of Instrument and Control Engineers (SICE Annual Conference 2013), Nagoya, 14-17 September 2013

Effect of Nonlinear Shear Strength Characteristic on the Slope Stability of Super High Rockfill Dam Lihong CHEN 1, a, Jian YANG2, b, Youren YUAN 3, c and Tao SUN 4, d 1 School of civil engineering and architecture, Beijing Jiatong University, Beijing 100044, China 2 Chinese Water resource and Hydropower Research Institute, Beijing 100044, China 3 Kunming Hydroelectric investigation, design and research Institute, 650051, China 4 Sichuan Hydropower design and research Institute, Chengdu 610000, China a LHChen@bjtu.edu.cn, bYangj@iwhr.com, cYuanyouren@163.com, cSuntao@163.com Keywords：：：：Nonlinear shear strength; limit equilibrium; Rockfill; Slope stability; Dam.
The design engineers may have the different opinion with the geology engineers for the design value of strength parameters.
Sometimes they think the design value provided by geology engineers is too conservative.
The earth dam design guideline of US Army Corps of Engineers specifies 2/3 of test results must large than the design value.
Lv, Z.Z Yin: Chinese Journal of Rock Mechanics and Engineering Vol.24 (2004), p. 2708-2711 [4] Chinese water resources and hydropower engineering geological investigation.

Seismic Reliability Analysis of Complex Structure Zhiyong Zhang 1, a, Wenbo Huang 2, b, Yuefa Zhou 3, c, Tianshu Song 4, d 1,2,3,4College of Aerospace Engineering and Civil Engineering, Harbin Engineering University, Room 3095, Building 11, No.145, Nantong Street, Nangang District, 150001 Harbin, Heilongjiang Province, P.R.
Acknowledgements This work was financially supported by Harbin Engineering University Groundwork Foundation (05001).
Journal of Structural Engineering, ASCE 2001, 127(3): 296~305
Earthquake Engineering and Engineering Vibration, 1985, 5(4): 13~27.

Analysis of Structure of Elements for Automotive Industry SOŃTA Grzegorz1,a, DUDEK Agata2,b, SELEJDAK Jacek3,c, ULEWICZ Robert4,d 1Automotive Industry, Silesian Region, Poland, 2 Czestochowa University of Technology, Faculty of Production Engineering and Materials Technology, Institute of Materials Engineering, 42-200 Częstochowa, Al.
Armii Karajowej 19 Poland 3Czestochowa University of Technology, Department of Building Structures and Engineering, Faculty of Civil Engineering, 42- 200 Częstochowa, ul. 
Akademicka 3, Poland 4Czestochowa University of Technology, Faculty of Management, Institute of Production Engineering, 42-200 Częstochowa.
It was found during completed microstructure and mechanical properties analysis performed according to requirements applicable in the automotive industry and part’s specific engineering specification that steel 42CrMo4 is relevant material to be used in serial production for this particular gear wheel as a replacement for sinter Sint-D32.
Mielniczuk, Statistics for students of engineering and sciences , WNT, Warszawa, 2001 [in Polish]

Research on Test and Simulation of New Type Steering System for Construction Machinery MA Li-ying1,a, LIANG Nai-xing2,b, CAO Yuan-wen1,c and GUI Shao-xiong1,d 1School of Mechatronics and Automotive Engineering, Chongqing Jiaotong University, Chongqing 400074, China 2 School of Civil Engineering & Architecture, Chongqing Jiaotong University, Chongqing 400074, China amaliying801@yahoo.com.cn, bLiangnx@163.com, ccaoyw@cquc.edu.cn, dguishaoxiong@yahoo.com.cn *Corresponding author: MA Li-ying, tel:13983820936, E-mail: maliying801@yahoo.com.cn Key Words: 4WS, electro-hydraulic control system, experimental research, system simulation Abstract.
The results implied that a four-wheel steering system (4WS) would greatly reduce the turning radius of engineering machinery so as to improve their operating stability.
Research of Engineering Machine’s New Type Steering System.
The Work Principle of 4WS Electro-hydraulic Control System of Engineering Machine.
Modern Control Engineering (Third Edition).Beijing: Publishing House of Electronics Industry,2000

China 2College of Mechanical Science and Engineering, Jilin University, Changchun 130025, P.R.
This property makes the MRF a wide range of potential application in mechanical engineering and civil engineering [3-5].
This relationship must be considered by engineers in designing and utilizing the MRT.
Zhang: Journal of Ordnance Engineering College, Vol. 16 (2004) No. 1, pp. 6-9 (In Chinese)
Zheng: Key Engineering Materials, Vol. 392-394 (2009), pp. 497-503.

Therefore, the question of horizontal stress factor hasn’t been solved in engineering yet.
The continual approach to the problem doesn’t require any hypotheses of an engineering scheme (such hypotheses are known to be quite approximate).
It requires neither hypotheses of engineering schemes nor continual equations.
Earth Pressure in Silos / Proc. of the Second International Conference on Soil Mechanics and Foundation Engineering. – ICSMFE, London, 1948, Vol. 1, pp. 103–107
Stress Distributions in Storage Silo under Uniform Vertical Pressure / The 22th KKCNN Symposium on Civil Engineering, 2009, Thailand, pp. 535–540