Dacheng Cong
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Author Swipe
View article: Studies on Frequency Response Characteristics of High-Speed Railway Train End Relationship Test System with Flexible Bases
Studies on Frequency Response Characteristics of High-Speed Railway Train End Relationship Test System with Flexible Bases Open
A train end relationship test system was installed with a Stewart parallel robot on the reaction bases perpendicular to the ground, to test the fatigue and durability of train end relationship components, such as the transfixion way of a h…
View article: Adaptive Impedance Control of a Novel Automated Umbilical System for Propellant Loading
Adaptive Impedance Control of a Novel Automated Umbilical System for Propellant Loading Open
In this paper, an automated umbilical system based on a 6-dof (degree of freedom) hydraulic parallel mechanism is proposed to automate the rocket propellant loading process. The mechanical structure, vision acquisition algorithm, and contr…
View article: Root Based Optimization Algorithm for Task-Oriented Structural Design of a Multi-Axial Road Test Rig
Root Based Optimization Algorithm for Task-Oriented Structural Design of a Multi-Axial Road Test Rig Open
A novel root based optimization algorithm (ROA), which mimics the proliferation of plant roots, is proposed to evaluate the performances of a multi-axial road test rig over a prescribed workspace. Plant roots have developed complex behavio…
View article: A Method of Foot Trajectory Generation for Quadruped Robots in Swing Phase to Optimize the Joint Torque
A Method of Foot Trajectory Generation for Quadruped Robots in Swing Phase to Optimize the Joint Torque Open
According to the basic motion requirements of quadruped robots, the mechanism of quadruped robot with 12 degrees of freedom is designed, and the dynamic model of single leg and the description equation of foot position are established. In …
View article: Modified Quasi-Newton Optimization Algorithm-Based Iterative Learning Control for Multi-Axial Road Durability Test Rig
Modified Quasi-Newton Optimization Algorithm-Based Iterative Learning Control for Multi-Axial Road Durability Test Rig Open
The iterative learning control (ILC) based on the linear frequency-domain model has been employed to replicate the road conditions for the vehicle durability testing in the laboratory. Generally, the vehicle and the multi-axial hydraulic t…
View article: The Applications of Compliant Motion Control Technique on 6-DOF Hydraulic Parallel Mechanism
The Applications of Compliant Motion Control Technique on 6-DOF Hydraulic Parallel Mechanism Open
Most interaction control formulations focused on electrically driven parallel mechanism. In this paper, the combining practice applications of compliant motion control technique on six degrees of freedom (6-DOF) hydraulic parallel mechanis…
View article: Shock Wave Characteristics of Hydraulic Shock Wave Simulator with Variable Damping
Shock Wave Characteristics of Hydraulic Shock Wave Simulator with Variable Damping Open
For simulating the shock wave with high peak force in a short duration, a novel variable damping hydraulic shock wave simulator was developed, and it was used for simulating the cannon recoil motion. The working principle of this simulator…
View article: Fuzzy Logic Washout Algorithm Based on Serial Manipulator
Fuzzy Logic Washout Algorithm Based on Serial Manipulator Open
The previous motion simulator is almost all built on the basis of parallel mechanism, and the most used and most mature is based on the six degree of freedom steward platform, and the simulator of the series mechanism has not been widely s…
View article: Research on hydraulic control system of shift gear clutch of hydro mechanical automatic transmission
Research on hydraulic control system of shift gear clutch of hydro mechanical automatic transmission Open
The dynamic model of the hydraulic control system of the shift clutch is established through the flow equation of the valve port, the flow continuity equation and the balance equation of the valve core force, the piston motion of clutch cy…
View article: Optimal Design and Hybrid Control for the Electro-Hydraulic Dual-Shaking Table System
Optimal Design and Hybrid Control for the Electro-Hydraulic Dual-Shaking Table System Open
This paper is to develop an optimal electro-hydraulic dual-shaking table system with high waveform replication precision. The parameters of hydraulic cylinders, servo valves, hydraulic supply power and gravity balance system are designed a…
View article: Robust Tracking and Synchronization of Double Shaking Tables Based on Adaptive Sliding Mode Control With Novel Reaching Law
Robust Tracking and Synchronization of Double Shaking Tables Based on Adaptive Sliding Mode Control With Novel Reaching Law Open
To improve tracking and synchronization control precision of electro-hydraulic shaking tables system, this paper presents a novel adaptive reaching law sliding mode controller (ARLSMC) for double shaking tables system with parameter uncert…
View article: A strategy to simplify of the dynamic model of 6-DOF motion simulator
A strategy to simplify of the dynamic model of 6-DOF motion simulator Open
Highly nonlinearity and strong dynamic coupling exist in 6-DOF motion simulator.Usually, in order to make the system has good dynamic and static quality, a good controller need to be designed according to the nature of the dynamic model.Th…
View article: Attitude synchronous tracking control of double shaking tables based on hybrid fuzzy logic cross-coupled controller and adaptive inverse controller
Attitude synchronous tracking control of double shaking tables based on hybrid fuzzy logic cross-coupled controller and adaptive inverse controller Open
The purpose of shaking tables is to replicate the desired motion to specimen, which needs to ensure not only the synchronization precision of two tables, but the tracking precision for the desired signal. Due to the nonlinearity of system …