A Study of Simulation Experiment of Car Steering Stability Based on ADAMS

2012 ◽  
Vol 548 ◽  
pp. 758-761
Author(s):  
Qiang Wang
Keyword(s):  
Simulation Model ◽  
Simulation Experiment ◽  
Simulation Analysis ◽  
Analysis Software ◽  
Car Model

Build a whole car model with ADAMS/Car, a simulation analysis software of mechanical kinetics to perform simulation experiment of car steering stability. Design and carry out experiment of snaking motion and turning braking. Prove the correctness of simulation model through analysis of the findings of experiment and comparison of them with the findings of real car experiment.

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.

scholarly journals Improving Quality and Occupational Safety on Automated Casting Lines

2017 ◽  
Vol 17 (3) ◽  
pp. 69-72
Author(s):  
S. Kukla
Keyword(s):  
Simulation Model ◽  
Working Conditions ◽  
Manufacturing Systems ◽  
Occupational Safety ◽  
Simulation Experiment ◽  
Simulation Analysis ◽  
System Organization ◽  
Modelling And Simulation ◽  
Low Degree ◽  
Basic Parameters

Abstract The paper presents a practical example of improving quality and occupational safety on automated casting lines. Working conditions on the line of box moulding with horizontal mould split were analysed due to low degree of automation at the stage of cores or filters installation as well as spheroidizing mortar dosing. A simulation analysis was carried out, which was related to the grounds of introducing an automatic mortar dispenser to the mould. To carry out the research, a simulation model of a line in universal Arena software for modelling and simulation of manufacturing systems by Rockwell Software Inc. was created. A simulation experiment was carried out on a model in order to determine basic parameters of the working system. Organization and working conditions in other sections of the line were also analysed, paying particular attention to quality, ergonomics and occupational safety. Ergonomics analysis was carried out on manual cores installation workplace and filters installation workplace, and changes to these workplaces were suggested in order to eliminate actions being unnecessary and onerous for employees.

A Novel Transmitting System for Electromagnetic Sounding Based on Tri-state Boost Converter

2019 ◽  
Vol 12 (6) ◽  
pp. 494-499
Author(s):  
Gang Li ◽  
Binren Zhang
Keyword(s):  
Simulation Model ◽  
Output Power ◽  
Basic Principle ◽  
Simulation Experiment ◽  
Dynamic Performance ◽  
Boost Converter ◽  
Electromagnetic Sounding ◽  
Important Method ◽  
Geophysical Exploration ◽  
Electromagnetic Detection

Background: Electromagnetic detection is an important method of geophysical exploration. The transmitting system is an important part of the electromagnetic detection equipment. Methods: The general topologies of a transmitting system for EM instrument are analyzed. The basic principle of EM detection is interpreted. In order to improve the output power and give consideration to the dynamic performance, an electromagnetic transmitting system based on the tri-state boost converter is proposed in this paper. Results: The principle of the proposed transmitting system is analyzed. The topology of the proposed transmitting system is illustrated and the working modes of tri-state boost converter are given. Conclusion: The simulation model is established and the simulation experiment is carried out to verify the feasibility of the new electromagnetic transmitting system.

Dynamic Analysis of DVG 850 High-Speed Machining Center

2012 ◽  
Vol 487 ◽  
pp. 203-207
Author(s):  
Gong Xue Zhang ◽  
Xiao Kai Shen
Keyword(s):  
High Speed ◽  
Simulation Analysis ◽  
Response Analysis ◽  
Improved Method ◽  
Analysis Software ◽  
Element Analysis ◽  
Harmonic Response ◽  
Machining Center ◽  
Calculation Results ◽  
Harmonic Response Analysis

Purpose, with the application of workbench finite element analysis software, get the analysis results of DVG 850 high-speed vertical machining center via the modal analysis and harmonic response analysis. Use the calculation results for reference, put forward the improved method, and prove the credibility of the simulation analysis by testing DVG 850 prototype.

A Method to Define the Best Weld Sequence Using a Limited Number of Welding Simulation Analysis

2015 ◽  
Author(s):  
Mahyar Asadi ◽  
Ghazi Alsoruji
Keyword(s):  
Simulation Model ◽  
Surrogate Model ◽  
Simulation Analysis ◽  
Combinatorial Problem ◽  
Fem Analysis ◽  
Simulation Models ◽  
Computational Time ◽  
Optimal Sequence ◽  
Welded Structure ◽  
Welding Sequence

Weld sequence optimization, which is determining the best (and worst) welding sequence for welding work pieces, is a very common problem in welding design. The solution for such a combinatorial problem is limited by available resources. Although there are fast simulation models that support sequencing design, still it takes long because of many possible combinations, e.g. millions in a welded structure involving 10 passes. It is not feasible to choose the optimal sequence by evaluating all possible combinations, therefore this paper employs surrogate modeling that partially explores the design space and constructs an approximation model from some combinations of solutions of the expensive simulation model to mimic the behavior of the simulation model as closely as possible but at a much lower computational time and cost. This surrogate model, then, could be used to approximate the behavior of the other combinations and to find the best (and worst) sequence in terms of distortion. The technique is developed and tested on a simple panel structure with 4 weld passes, but essentially can be generalized to many weld passes. A comparison between the results of the surrogate model and the full transient FEM analysis all possible combinations shows the accuracy of the algorithm/model.

scholarly journals Optimal Design and Simulation Analysis of Spike Tooth Threshing Component Based on DEM

Processes ◽  
2021 ◽  
Vol 9 (7) ◽  
pp. 1163
Author(s):  
Yajun Yu ◽  
Liangshan Li ◽  
Jiale Zhao ◽  
Xiangeng Wang ◽  
Jun Fu
Keyword(s):  
Optimal Design ◽  
Simulation Analysis ◽  
Process Analysis ◽  
Structural Parameters ◽  
Compressive Force ◽  
Microscopic Analysis ◽  
Analysis Software ◽  
Damage Rate ◽  
Tooth Type ◽  
Simulation Time

This paper takes a local drum-type corn thresher as an example. In order to make the threshing principle transform to the plate-tooth type, the width of the spike-tooth threshing component is increased gradually, and three threshing components of different shape and size are selected as the research objects. Based on the preliminary experimental research, the corn threshing process is simulation analyzed using the self-developed corn threshing process analysis software. The effects of the width of the threshing component on the corn ears threshing rate and kernel damage rate under different rates of drum rotation were studied from a macroscopic perspective. The results show that with the increase of drum rotation rate, both the corn ear threshing rate and kernel damage rate increase; with the increase of threshing component width, the threshing rate increases and the damage rate decreases; and when the component width is too large, the stacking between adjacent components has an impact on the threshing performance. The effects of threshing component width on the amount of kernel threshing and the total compressive force during the simulation time were investigated from microscopic perspective at different rates of drum rotation, and the results show that the microscopic analysis is consistent with the macroscopic analysis. Therefore, the optimization of the structural parameters and operating parameters of the threshing component was achieved. When the width of the threshing component was 25 mm and the roller speed was 187.50 rpm, the threshing performance was optimal, with a 98.04% corn ears threshing rate and a 2.56% kernel damage rate. This paper verifies the practical applicability of the corn threshing process analysis software and provides a reference for the optimal design of threshing devices.

Simulation Model of Crowd Evacuation Navigation in a Multi-Obstacle Environment

2020 ◽  
pp. 036119812097126
Author(s):  
Zhongrui Ni ◽  
Zhen Liu ◽  
Tingting Liu ◽  
Yanjie Chai ◽  
Cuijuan Liu
Keyword(s):  
Simulation Model ◽  
Simulation Experiment ◽  
Control Algorithms ◽  
Prototype System ◽  
Evacuation Simulation ◽  
Agent Based ◽  
Crowd Management ◽  
Navigation Simulation ◽  
Local Navigation ◽  
Crowd Evacuation

The simulation of a crowd evacuating public buildings can be an important reference in planning the layout of buildings and formulating evacuation strategies. This paper proposes an agent-based crowd model; a crowd evacuation navigation simulation model is proposed for the multi-obstacle environment. We introduce the concept of navigation factor to describe the proximity of the navigation point to the exit. An algorithm for creating navigation points in multi-obstacle environment is proposed along with the global navigation and local navigation control algorithms of the crowd. We construct a crowd evacuation simulation prototype system with different simulation scenes using the scene editor. We conduct the crowd evacuation simulation experiment in the multi-obstacle scene, recording and analyzing the relevant experimental data. The simulation prototype system can be used to derive the evacuation time of the crowd and analyze the evacuation behavior of the crowd. It is expected to provide a visual deduction method for crowd management in an evacuation emergency.

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.

Research on the Kinematics Simulation of Out-Moving Jaw Crusher Based on Nastran

2013 ◽  
Vol 433-435 ◽  
pp. 63-66
Author(s):  
Jiang Yong
Keyword(s):  
Simulation Model ◽  
Simulation Analysis ◽  
Dynamic Performance ◽  
Theory Model ◽  
Structure Design ◽  
Side Plate ◽  
Jaw Crusher ◽  
Kinematics Simulation ◽  
Motion Characteristics ◽  
Dynamic Performance Analysis

In this paper, out-moving jaw crusher machine is regarded as the research object and we established the simulation model of virtual prototype based on Nastran. Through the simulation analysis of the movement process, trajectories of moving jaw side plate and a movable jaw toggle plate and related parameters were obtained and compared and verify the simulation model and theory model. The results show that: the simulation model reflects the motion characteristics of the theoretical model well. So it provides theoretical reference for improvement of dynamic performance analysis and structure design of jaw crusher and has important application value in engineering.

Simulation Analysis of Aviation Aluminum Alloy Reaming Processes by Using PCD Reamer

2020 ◽  
Vol 866 ◽  
pp. 3-11
Author(s):  
J. Yin ◽  
W. Yang ◽  
Yong Guo Wang
Keyword(s):  
Aluminum Alloy ◽  
Cutting Force ◽  
Thrust Force ◽  
Simulation Analysis ◽  
Cutting Temperature ◽  
Spindle Speed ◽  
Analysis Software ◽  
Element Analysis ◽  
Speed Increase ◽  
Cutting Processes

Cutting force and cutting temperature are two important parameters in the cutting processes. In this paper, AdvantEdge finite element analysis software was used to simulate and analyze the reaming process of aviation aluminum alloy 7050 by using PCD reamer. The cutting simulation model was established to investigate the effect of spindle speed, feed per tooth on thrust force and cutting temperature. Simulation results showed that the cutting force increased with the increase of feed per tooth at different spindle speeds. And in the case of different feed per tooth, the cutting force decreased slightly as the spindle speed increase. Besides, from the cutting temperature distributed in the reamer, the cutting temperature near the tip of the tool in the reaming process was highest, the cutting temperature increased with the increase of both spindle speed and feed per tooth.

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