Proceedings of the 2015 International Conference on Electrical, Automation and Mechanical Engineering

Session: Mechanical Analysis, Optimization and simulation

25 articles
Proceedings Article

The Product Innovative Design Methodology Integrating Reverse Engineering With Optimization — A Case Study on Automotive Styling

H.W. Xiong, J. Xu, C.X. Xu, M. Pan
In the styling phase of a product design, it’s difficult to meet aesthetic and performance requirements simultaneously. An innovative design methodology integrating reverse engineering (RE) with optimization is illustrated to settle such a problem. In the field of automotive styling, the stylist’s aesthetic...
Proceedings Article

Optimization of Cutting Force and Surface Roughness Based on Taguchi Technique for AA6061

E. Yahya, H. AIi salim
Optimization of machining parameters has great concerned in manufacturing environments, there for in this study cutting force and surface roughness are optimized based on machining parameters. Many researchers have established the relationship between the surface roughness and machining parameters, but...
Proceedings Article

Research of Production Scheduling Based on Theory of Constraints

X.M. Zhang, Y.L. Du
An improved DBR scheduling method is proposed based on discrete system simulation method. The simulation model is established to identify bottleneck resources and determine the buffer. The improved simulated annealing is used to optimize and determine the DBR control parameters. The example results confirm...
Proceedings Article

Mode-Switch Strategy for Dual-Motor Coupling System of Electric Vehicles Based on Optimal Dynamic Performance

S.M. Han, X.F. Yin, X.H. Wu
To improve the accelerating ability of electric vehicle, a mode-switch control strategy based on optimal dynamic performance for the dual-motor coupling system (DMCS) is put forward in this investigation. The configuration and work modes of the investigated DMCS system have been discussed at first, and...
Proceedings Article

Vibration Analysis of The End Conveyor Discharge Arm

G.Y. Lin, W.Z. Wang, Z.Y. Li, Z.B. Li
End conveyor is widely used in large open-pit mine, in order to gain the three diagonal elastic deformations of supporting elements as well as the discharge arm vibration model, by making reasonable assumptions. The discharge arm system is simplified to single degree of freedom model, using the geometric...
Proceedings Article

Research and Development of Test Rig Prototype for Remanufactured Automatic Transmission

J. Ma, Q.C. Wang, Q. Chen, Y.H. Meng
The paper puts forward a new model of electric-loading test rig for testing remanufacture automatic transmission to meet the demands for testing different types of remanufactured automatic transmissions. The sub-systems, including electric & electronic control systems and the mechanical components, were...
Proceedings Article

The Dimensionless-Parameter Robust Optimization Method Based on Geometric Approach of Pulley Block Compensation In Luffing Mechanism

Y. Xue, M.S. Ji, N. Wu
When using the minimum unbalance torque as the objective function to establish the optimization mathematical model of pulley block compensation in luffing mechanism, the dimensional optimal solutions do not have extension applicability. To solve this problem, a new optimization mathematical model, using...
Proceedings Article

Study of Pressure Distributions in A Flexural Gas Squeeze Film

J. Li, T. Zhang, C.J. Liu
Near field acoustic levitation (NFAL) has been used in non-contact handling and transportation. The levitation force is generated by the squeeze film. In order to descript the levitation force precisely, we built a mathematic model of the squeeze film, considering the gas inertia and relevant nonlinear...
Proceedings Article

Effect of Bolt Number on Joint Stiffness of Disc and Drum Connected by Bolted Joints

H.Y. Wang, Z.Y. Qin, F.L. Chu
The disc-drum type rotors are widely used in large turbofan engines, where the drums are connected the adjacent disks with the bolted joints. In this paper, the joint stiffness characteristics of a disc-drum structure are investigated based on the finite element model. Firstly, the nonlinear finite element...
Proceedings Article

Dynamic Response of Rubbing Happening In A Flexible Rotor-Bearing System

J.M. Chen, D.X. Jiang, T.T. Deng, J.S. Wang, J.L. Zhong, S.B. Wang
To reduce the steam loss and raise the efficiency of the steam turbine, the vapour seals are applied in the inner cylinder of the steam turbine. The small gap may easily results in the rubbing happening in the inner cylinder. Sometimes, the rotor is a flexible rotor. In this paper, dynamic response of...
Proceedings Article

Structural Optimization for Column of Gantry Machine Tool Using Response Surface Method

M.J. Twu, S.B. Yu
As the first part of an ongoing integrated project for developing a desktop gantry grinding machine tool, the structural optimization of column part is taken as the focus of the study. The thickness, height, and width of column are the design variables. The objective of optimization is to minimize volume...
Proceedings Article

The Investigation on the Mechanical Endurance Degradation of Nafion Membrane

Y. Xiao, C. Cho
As a solution of high efficiency and clean energy, fuel cell technologies, especially proton exchange membrane fuel cell (PEMFC), have caught extensive attention. However, after decades of development, the performances of PEMFCs are far from achieving the target from the Department of Energy (DOE). So,...
Proceedings Article

Impact Predictions of Face Gear Rim Thicknesses on Mesh Stiffness of Face Gear Drives

H.S. Chen, Z.M.Q. Li, X.S. Liu, H. Wu, J. Wang
Mesh stiffness is one of fundamental parameters of face gear dynamics. Thus, a calculation solution of mesh stiffness of face gear drives was constructed by finite element method. The impact of face gear rim thicknesses on mesh stiffness was predicted. The analytical results indicate that a face gear...
Proceedings Article

The Study of Load Distribution for Combination Bearing in Wellbore Trajectory Control Tool

D. Feng, Z.W. Liao, H. Zhang, L. Shi, C.Y. Xia, S.Z. Wei
In this paper, the load distribution of combination bearing in wellbore trajectory control tool has been carried out the theoretical study, it is concluded the response of combination bearing in pure radial & axial load bearing. Based on this study, the working state of combination bearing has been simulated...
Proceedings Article

Path Planning Based on Bi-RRT Algorithm for Redundant Manipulator

X.Z. Zang, W.T. Yu, L. Zhang, S. Iqbal
For the manipulator which is used to execute maintenance tasks in the Tokamak reactor, solving the problem of collision-free path planning is the premise. This paper introduced the Single-RRT and Bi-RRT algorithms then used Bi-RRT algorithm to make the path planning for the motion of a redundant manipulator...
Proceedings Article

Workspace Analysis of A 2-DOF Planar Parallel Mechanism

Y. Y. Chen, X.Z. Han, F. Gao, Z.H. Wei, Y. Zhang
A 2- Degree Of Freedom (DOF) planar parallel mechanism is introduced and the inverse solution of the kinematics and Jacobin matrix and workspace analysis are carries out. The mathematical conditions of which the singular configuration of the manipulator occurred based on Jacobin matrix and the relationship...
Proceedings Article

Stability Analysis and Modification of Guide Support System of Piston Rod in Labyrinth Reciprocating Compressor

H.N. Tang, S.J. Wang, X.Y. Dong
Based on the characters that the piston rod of labyrinth reciprocating compressors is supported by a guide bearing system in the direction of movement, simplified mechanical model of piston rod is established. To determine the effect of relevant parameters on the vibration and stability of piston rod,...
Proceedings Article

Numerical Simulation of Turbulent Flow Over Staggered Tubes Using Multi-Relaxation Time Lattice Boltzmann Method

J. Park
A multi-relaxation time lattice Boltzmann method (MRT-LBM) fluid flow analysis code is developed based on a two-dimensional D2Q9 lattice model and sub-grid eddy viscosity model of Smagorinsky. Benchmarking of the MRT-LBM is performed for a turbulent flow over staggered tube bundles at Reynolds number...
Proceedings Article

Experimental Comparison of Hyperelastic Model on Skin

N.F. Adull Manan, J. Mahmud
This study aims to determine the hyperelastic parameters of skin (ovine). Firstly, experimental procedures involving mechanical tensile tests on ovine skin are conducted according to ASTM International Standard. Then, experimental data and hyperelastic model for biomaterials are integrated. Finally,...
Proceedings Article

Investigation of An Electronically Controlled Hybrid Hydrogen–Gasoline Engine Powered Passenger Car

L.J. Hao, M. Chen, C.X. Ren, C.W. Ji
Hydrogen is very promising as engine fuel due to its excellent combustion and emission characteristics. In order to improve the emission of a spark-ignited gasoline engine car a set of hydrogen injection system was added to its gasoline engine and the engine can be fuelled with gasoline, hydrogen or...
Proceedings Article

Design and Simulation of An Energy Management Algorithm for Extended-Range Electric Bicycles

D.W. Yao, G. Fan, C. Zhang, J.H. Jiang, F. Wu
A composite energy management algorithm for extended-range electric bicycles was established on the basis of traditional constant power and tracking power control strategies. With the calculation results of driving power demand and state of charge (SOC) value of battery, the algorithm can optimize the...
Proceedings Article

The Modified PID Network of Aeroengine Multivariable Decoupling Control System

J. Ying, H. Rong, J.Y. Dai, F.T. Huang
To solve the decoupling problem in aeroengine multivariable contrl system,in this article,using the modified PID network design the decoupling controller for aeroengine multivariable system. PID network weights using gradient learning algorithm, the network weights fixed more slowly and were easy to...
Proceedings Article

A New Optimal Velocity Control Function Considering Driver’s Anticipation Effect

B.G. Cao
Considering longitudinal spatial deviations from expected referenced equilibrium point (plan), a new two dimensional (2-d) optimal velocity function considering driver’s nonlinear adjustment effect is presented. We call it as super desired velocity, simplified as SDV. Unlike existing optimal velocity...
Proceedings Article

Methods of Constructing Analytic Functions to Generate Airfoil Profiles

H.B. Jiang, Y.R. Li, Z.Q. Cheng
To facilitate the airfoil design, this paper studied the methods of constructing analytic functions to generate airfoil profiles. By Taylor series, Joukowsky airfoil function was simplified to a simple expression, and its coefficients and exponents were redefined as general constants. A series of simple...
Proceedings Article

Generalized Inverse Reconstruction for Periodic Nonuniform Sampling

J.Y. Luo, L. Lei
A traditional assumption underlying most data converters is that the signal should be sampled at a rate exceeding twice the highest frequency. In this paper, we employ a method for low-rate sampling of multi- band signals via applying periodic nonuniform sampling in shift-invariant spaces generated by...