Simulation Analysis and Optimization of Lubricating Oil System

2021 ◽  
Author(s):  
Qiongxiao Wu ◽  
Jianjun Wang ◽  
Jingming Chen ◽  
Pengzheng Li
Keyword(s):  
Simulation Model ◽  
Simulation Analysis ◽  
Sudden Change ◽  
Pressure Change ◽  
Lubricating Oil ◽  
Maximum Pressure ◽  
Closing Time ◽  
Original Design ◽  
Relief Valve ◽  
Simulation Results

Abstract Based on the one-dimensional simulation model of lubricating oil system is established and analyzed by using FLOWMASTER software, this paper proposes a new method of optimizing lubricating oil system by PID technology. Ensure that the configuration requirements and control strategies of the relevant accessories of the simulation model are satisfied with the design requirements. Firstly, by simulating lubricating oil pressure fluctuation and lubricating oil flow distribution under Open/Close Valve in different opening and closing time, the optimal opening/closing time of Open/Close Valve is determined to be 0.2 s and 0.5 s respectively. Secondly, by writing the controller script file combined with a controller to realize automatic unloading relief valve simulation, determine the relief valve pressure regulating range of 0∼0.38 MPa, For precision of constant pressure valve of oil spill, the simulation results show that the average 10 m3/h flow caused by pressure changes of about 0.06 MPa. Under the flow sudden change signal of about 40 m3/h, the maximum pressure change is less than 0.1 MPa. Through the simulation results, it is found that most of the lubrication parts in the original design have the phenomenon of flow redundancy, which causes unnecessary pump power loss. The system is optimized by PID technology. By comparing the simulation results before and after optimization, it is found that the speed of constant displacement pump could be changed in time by PID controller, and the flow redundancy could be improved significantly, so the lubricating oil system could be lower consumption and achieve the purpose of optimization.

scholarly journals Dynamic Simulation of UHMWPE Cable Winding Process of Parallel Grooved Multi-Layer Drum Based on ADAMS

2021 ◽  
Author(s):  
Fankai Kong ◽  
Wenbo Cui ◽  
Fei Chen ◽  
Zhenyang Wang ◽  
Zhongchen Zhou
Keyword(s):  
Simulation Model ◽  
Dynamic Simulation ◽  
Simulation Analysis ◽  
Virtual Prototype ◽  
Prototype Model ◽  
Specific Load ◽  
Rotating Speed ◽  
Simulation Results ◽  
Prototype Software ◽  
Selection Of

According to the insufficient force analysis of the cable in the process of winch retraction, especially the insufficient research on the flexible cable retraction process such as the UHMWPE cable, the dynamic simulation analysis of the retraction process of the parallel grooved multi-layer drum and UHMWPE cable cable is carried out by using the virtual prototype software ADAMS. The simulation model of the cable is created by using the macro command program, and the virtual prototype model of the cable drum is completed, and the force changes of the cable under different rotating speeds are simulated.The simulation results show that the contact force between the cable and the double winding drum can be quickly stable under the specific load, and with the increase of the rotating speed, the maximum value of the tension change of the cable increases, but it is finally stable at a fixed value. The results can provide some reference for structural strength calculation of cable storage drum, selection of high molecular polyethylene cable and dynamic analysis of cable arranger under load.

Nonlinear Model and Digital Simulation Analysis of Valve Controlled Cylinder Base on Power Bond Graph

2011 ◽  
Vol 80-81 ◽  
pp. 841-844
Author(s):  
Ling Yu ◽  
Yan Chun Zhao ◽  
Chun Qiang Jia
Keyword(s):  
Simulation Model ◽  
Nonlinear Model ◽  
Dynamic Characteristics ◽  
Simulation Analysis ◽  
Digital Simulation ◽  
Bond Graph ◽  
Scientific Basis ◽  
Slide Valve ◽  
Power Bond Graph ◽  
Simulation Results

In this paper the nonlinear model of zero open symmetrical cylinder controlled by four-way slide valve system was established base on power bond graph. The flexible simulation model was building up by the use of simulink toolbox in MATLAB. The model’s dynamic characteristics were stimulated. The simulation results showed the nonlinear model could reflect the dynamic characteristics of the valve controlled cylinder accurately. So it provided scientific basis for estimating the characteristics and correct using of the controlled cylinder system.

Study on Impact of Powertrain Mounting Stiffness on Vehicle Vibration Characteristics

2012 ◽  
Vol 605-607 ◽  
pp. 1154-1157
Author(s):  
Yu Zhuo Men ◽  
Hai Bo Yu ◽  
Hua Wang ◽  
Liang Xu
Keyword(s):  
Simulation Model ◽  
Simulation Analysis ◽  
Drive Shaft ◽  
Dynamics Simulation ◽  
Interpolation Function ◽  
Vibration System ◽  
Nonlinear Characteristics ◽  
Model Reliability ◽  
Simulation Results ◽  
Stiffness And Damping

ADAMS was used to establish the dynamics simulation model of a truck vehicle vibration system, while the engine, drive shaft and tire excitations were added to the model. For nonlinear characteristics of rubber mounting components stiffness and damping, input was conducted by the use of interpolation function SPLINE. Through the comparison of road tests and simulation results, the model reliability was verified and simulation analysis was conducted on this basis. The results show that reasonable selection and matching of powertrain mounting stiffness, mounting position could effectively improve the performance of vehicle vibration system.

Simulation Analysis of Automotive Exhaust Muffler Performance Based on GT-Power

2011 ◽  
Vol 48-49 ◽  
pp. 1061-1064
Author(s):  
Ming Yi Zhu ◽  
Xiang Yang Zhao ◽  
Qing Liu
Keyword(s):  
Simulation Model ◽  
Insertion Loss ◽  
Pressure Loss ◽  
Simulation Analysis ◽  
Experimental Results ◽  
Automotive Exhaust ◽  
Working Process ◽  
Vehicle Development ◽  
Development Cycle ◽  
Simulation Results

Using GT-Power software to establish the simulation model of the working process of an engine coupled with the muffler, insertion loss and pressure loss are obtained, simulation results are consistent with the experimental results, which verifies the correctness of simulation model.Therefore, it is important to shorten the vehicle development cycle and reduce cost.

Design and Simulation Analysis of Tamper System for Multifunction-Paver

2011 ◽  
Vol 268-270 ◽  
pp. 875-880
Author(s):  
Guo Yang Wu
Keyword(s):  
Simulation Model ◽  
Vibration Frequency ◽  
Pid Controller ◽  
Simulation Analysis ◽  
Response Speed ◽  
Hydraulic Impact ◽  
Simulation Results ◽  
The Stability

In this article, the tamper system of multifunction- paver has been simulated by AMESim, and the simulation model of the tamper system of multifunction- paver has been established. The simulation results show that the hydraulic impact of the system will be decreased and the response speed of the system will be improved, when accumulator and PID controller are equipped. Simultaneously, the stability of vibrated system will go down with the increase of vibration frequency. When vibration frequency is over 20 HZ, the performance of system will go bad, and the vibration of system will be significantly enhanced.

Inertial Piezoelectric Micro Rotary Actuator

2012 ◽  
Vol 487 ◽  
pp. 208-211
Author(s):  
Jian Ming Wen ◽  
Ji Jie Ma ◽  
Zhong Hua Zhang ◽  
Guang Ming Cheng ◽  
Jun Wu Kan
Keyword(s):  
Simulation Model ◽  
Dynamic Simulation ◽  
Simulation Analysis ◽  
Angular Speed ◽  
Sine Wave ◽  
Rotary Actuator ◽  
Dynamic Simulation Model ◽  
Piezoelectric Stacks ◽  
Simulation Results ◽  
Good Agreement

A newly inertial piezoelectric rotary actuator is proposed based on controlling the orderly changes of friction force between the rotator and supporting faces in mechanical way. The dynamic simulation model of the actuator is derived. A prototype small inertial rotary actuator characterized by two symmetric piezoelectric stacks has been fabricated based on the proposed method. The actuator can rotate when it is powered with a square-wave or sine-wave voltage. The experimental and simulation results show that its angular speed is proportional to both the driving voltage’s amplitude and the frequency. The experimental results also show good agreement with the simulation analysis.

Study and Simulation Analysis of OFDM System Based on Simulink

2013 ◽  
Vol 706-708 ◽  
pp. 1967-1970
Author(s):  
Tong Qiang Li ◽  
Li Gang Xu
Keyword(s):  
Simulation Model ◽  
Communication System ◽  
Orthogonal Frequency Division Multiplexing ◽  
Simulation Analysis ◽  
Performance Characteristics ◽  
Frequency Division Multiplexing ◽  
Frequency Division ◽  
Ofdm System ◽  
The Future ◽  
Simulation Results

Orthogonal Frequency Division Multiplexing(OFDM) is going to become the most important technique in the future communication system. The paper presents the principle of OFDM,establishes a simulation model of OFDM communication system based on simulink.By utilizing the system,we briefly analyse the simulation results and conclude the the performance characteristics of OFDM system.

Kinematics Simulation of Residues Cutting and Ridge Cleaning Equipment Based on ADAMS

2010 ◽  
Vol 29-32 ◽  
pp. 819-823 ◽  
Author(s):  
Shi Hong Wu ◽  
Bu Zhang ◽  
Feng Yu He ◽  
Bao Fa Li
Keyword(s):  
Theoretical Analysis ◽  
Simulation Model ◽  
Simulation Analysis ◽  
No Tillage ◽  
Kinematics Simulation ◽  
Cleaning Equipment ◽  
Adams Software ◽  
Simulation Results ◽  
Ridge Tillage

The residues cutting and ridge cleaning equipments of Ridge-tillage planter are important working parts which can prevent no-tillage planter from clogging and ensure good quality of seeding. For this, How to use ADAMS software to establish the simulation model of residues cutting and cleaning equipment is introduced, and the simulation analysis of its cutting residues and cleaning the ridge is done in this paper. Simulation results show that running results are in line with the theoretical analysis, which improved the design of residues cutting and ridge cleaning equipment of No-tillage planter.

Simulation and Optimization of FSAE Racing Suspension

2013 ◽  
Vol 765-767 ◽  
pp. 366-369
Author(s):  
Dian Bo Ren ◽  
Xue Mei Fan ◽  
Jian Feng Wang ◽  
Yong Qiang Zhang
Keyword(s):  
Simulation Model ◽  
Simulation Analysis ◽  
Kinematics Analysis ◽  
Analysis Software ◽  
Front Suspension ◽  
Simulation And Optimization ◽  
Kinematics Simulation ◽  
Car Racing ◽  
Simulation Results

In this paper, kinematics analysis software ADAMS/Car was used to establish the FSAE car racing double wishbone independent front suspension simulation model, kinematics simulation analysis has been used to get the wheel beats of each parameters variation. For the simulation results, part of the suspension of the hard points position have been optimized by ADAMS/Insight module, to improve the characteristics of the suspension movement.

The Research on Effects of the Medium Blocking on Motion Performances of Main Steam and Feed Water Isolation Valves With its Driving Device

2017 ◽  
Author(s):  
Dalei Pan ◽  
Hua Zhong ◽  
Shenjie Gu ◽  
Guangyue Guo ◽  
Hongbo Kuang
Keyword(s):  
Simulation Model ◽  
Nuclear Power ◽  
Power Plants ◽  
Feed Water ◽  
Closing Time ◽  
Blocking Effects ◽  
Simulation Results ◽  
Electromechanical Equipment ◽  
Main Steam ◽  
Resistance Coefficients

This article presents the study of the medium block effects on the driving device performances of main steam and feed water isolation valves, which are typical electromechanical equipment in nuclear power plants. The equipment simulation model is established, which can calculate motion performances under all working situations. The medium blocking force models during the motion of valves are established and the blocking effects on the driving device performances are calculated and analyzed. The simulation results show that the medium block has little effects on the opening performances of the driving device, while it has important effects on the closing performances, especially on the quick closing, which suggests that the equipment should be lubricated to reduce resistance coefficients and the main parameters of electromechanical equipment should be tuned and calibrated to guarantee the quick closing time.

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