Collaborative Design Optimization of Main Movement System of Hydraulic Piston Engine

2012 ◽  
Vol 605-607 ◽  
pp. 448-452
Author(s):  
Dian Lun Xue ◽  
Hong Xin Zhang ◽  
Ying Liu
Keyword(s):  
Collaborative Design ◽  
Optimization Method ◽  
Collaborative Optimization ◽  
Connecting Rod ◽  
Piston Engine ◽  
Working Process ◽  
New Type ◽  
Movement System ◽  
Optimizing Model ◽  
Type Power

Hydraulic confined piston engine (HCPE) is a new type power device directly turning indicating work into hydraulic power, whose working process is related to many disciplines. The optimal design of its main movement system is very important for improving performance. Based on the minimum volume, the MDO model was constructed. The model includes systematic level optimizing model and disciplinary level optimizing model of crankshaft and connecting rod. Computed with collaborative optimization method, the total volume reduces by 12.62%, among which the volume of connecting rod increases by 9.26%, but crankshaft reduces by 14.06%. The result is more integrally optimal because of considering the collaborative effect between subsystems.

Load Analysis of Crankshaft of Axial Three-Cylinder Hydraulic Confined Piston Engine

2010 ◽  
Vol 34-35 ◽  
pp. 1692-1696 ◽  
Author(s):  
Hong Xin Zhang ◽  
Tie Zhu Zhang ◽  
Qin Hai Zhao
Keyword(s):  
Friction Stress ◽  
Mathematic Model ◽  
Von Mises Stress ◽  
Connecting Rod ◽  
Piston Engine ◽  
Future Design ◽  
Stress Study ◽  
New Type ◽  
Von Mises ◽  
Type Power

Hydraulic confined piston engine (HCPE) is a new type power device which can directly turn indicated work into hydraulic power, and three cylinders axial HCPE prototype has been manufactured. The load and stress study on its crankshaft is very important for future design. The working principles of HCPE was discussed, the mathematic model of its working process was constructed, and the load on crankpin by connecting rod was obtained by simulation. The total contact model of crankshaft reflecting the actual conditions was built, through which Von Mises stress, contact stress and friction stress of crankshaft were calculated. The maximum of Von Mises stress occures at the fillets of main shaft neck. The fatigue secure coefficient of crankshaft is about 2.85, which meets the demand.

Analysis on Energy-Flow of a Bipropellant-Powered Hydraulic Free Piston Engine

2011 ◽  
Vol 121-126 ◽  
pp. 3102-3106
Author(s):  
Bi Zhong Xia ◽  
Gang Su ◽  
Hai Bo Xie ◽  
Hua Yong Yang
Keyword(s):  
Energy Flow ◽  
Maximum Speed ◽  
Piston Engine ◽  
Working Process ◽  
Free Piston ◽  
Heating Value ◽  
Working Cycle ◽  
Free Piston Engine ◽  
New Type ◽  
Working Efficiency

Bipropellant-powered hydraulic free piston engine (BHFPE), as a new type of HFPE, takes advantage of bipropellant in place of conventional fossil fuel, and adopts a catalytic ignition instead of the conventional spark or compression ignition. In this paper, the operational principle and working process of a BHFPE are described firstly, then the chemical formula and molar mass as well as the heating value of the bipropellant i.e. kerosene/HTP combination are dealt with respectively. Thereafter analysis on the internal energy-flow i.e. energy input, transfer, dissipation and output, during a working cycle of the BHFPE are analyzed. Additionally the operating parameters such as working efficiency, maximum speed of the free piston assembly (FPA) and the output hydraulic energy are derived.

Power System Analysis and Design of the Six-Cylinder Hydraulic Confined Piston Engine

2013 ◽  
Vol 765-767 ◽  
pp. 57-61 ◽  
Author(s):  
Lian Jun Cheng ◽  
Ji Peng Zhang ◽  
Wei Huo ◽  
Tie Zhu Zhang
Keyword(s):  
Power System ◽  
System Analysis ◽  
Combustion Engine ◽  
Connecting Rod ◽  
Piston Engine ◽  
System Analysis And Design ◽  
Analysis And Design ◽  
Power System Analysis ◽  
Theoretical Support ◽  
New Type

Hydraulic Confined Piston Engine (HCPE) is a new type of internal combustion engine which can directly convert thermal energy into hydraulic energy. Power system of the six-cylinder HCPE is studied in this paper. The power system model is built; the power system analysis and design are carried through. The new type of crank connecting rod mechanism is proposed in the six-cylinder HCPE. Fitting-curves of movement, force, and torque for the key parts are drawn to provide theoretical support for the prototype of the six-cylinder HCPE.

Study on Mix-Variable Collaborative Design Optimization

2012 ◽  
Vol 215-216 ◽  
pp. 592-596
Author(s):  
Li Gao ◽  
Rong Rong Wang
Keyword(s):  
Design Optimization ◽  
Product Design ◽  
Optimization Algorithm ◽  
Collaborative Design ◽  
Optimization Problems ◽  
Optimal Solution ◽  
Collaborative Optimization ◽  
Continuous Variables ◽  
Complex Product ◽  
Divide And Rule

In order to deal with complex product design optimization problems with both discrete and continuous variables, mix-variable collaborative design optimization algorithm is put forward based on collaborative optimization, which is an efficient way to solve mix-variable design optimization problems. On the rule of “divide and rule”, the algorithm decouples the problem into some relatively simple subsystems. Then by using collaborative mechanism, the optimal solution is obtained. Finally, the result of a case shows the feasibility and effectiveness of the new algorithm.

Sign in / Sign up

Export Citation Format

Share Document