Reach on the Buffer Capacity Design between Body Shop Lines of Aar with Simulation Analysis

2013 ◽  
Vol 655-657 ◽  
pp. 1666-1669
Author(s):  
Xin Jin ◽  
Jian Su ◽  
Chang Hai Yang
Keyword(s):  
Simulation Model ◽  
Buffer Capacity ◽  
Simulation Analysis ◽  
Capacity Design ◽  
Body Shop ◽  
Automated Production ◽  
Car Body

In order to buffer the randomness failure of automated production car body shop is growing tendency to set buffer between lines to solve this problem. Then how to design the buffer capacity is the problem. This article did analysis of the basic planning data of body shop, then provides how to build simulation model and how to design the buffer capacity base on different planning phases through simulation analysis.

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.

Vorrichtungsfreies Fügen*/Fixtureless joining in car body assembly

2018 ◽  
Vol 108 (10) ◽  
pp. 703-707
Author(s):  
D. Kupzik ◽  
S. Coutandin ◽  
J. Fleischer
Keyword(s):  
Automotive Industry ◽  
Flexible Body ◽  
Body Shop ◽  
Car Body ◽  
New Models ◽  
Device Free

Die steigende Variantenvielfalt im Automobilbau durch neue Modelle und elektrische Derivate motiviert ein Umdenken im Karosserierohbau. In „SmartBodySynergy“ (SBS) wird ein flexibler Karosserierohbau in Werkstattfertigung entwickelt. Für dessen Umsetzung sind flexible Fügezellen notwendig. In diesem Artikel wird der Einsatz einer vorrichtungsfreien, kamerageregelten Bauteilpositionierung für den Einsatz in varianten- sowie vorgangsflexiblen Fügezellen untersucht und eine Demonstratorzelle vorgestellt.   The increasing diversity of variants in the automotive industry through new models and electrical derivatives motivates a rethinking of body shop construction. In „SmartBodySynergy“ (SBS), a flexible body shop is being developed in workshop production. For its implementation, flexible joining cells are necessary. This article examines the use of device-free, camera-controlled component positioning for use in variant- and process-flexible joining cells and introduces a demonstrator cell.

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.

The Distribution Design and Dynamic Simulation Analysis of the Flow of the Transmission’s Cooling and Lubrication System

2014 ◽  
Vol 633-634 ◽  
pp. 1303-1310
Author(s):  
Jing Ke Du ◽  
Shu Han Wang ◽  
Ting Bin Song ◽  
Teng Teng Kang
Keyword(s):  
Simulation Model ◽  
Simulation Analysis ◽  
System Modeling ◽  
Flow Distribution ◽  
Lubrication System ◽  
System Flow ◽  
Set Up ◽  
Cooling And Lubrication ◽  
Test Result ◽  
New System

The bearing lubrication system flow distribution design of the transmission was realized with a new system modeling method, targeted at the problem of a certain type of transmission’s bearings’ sintering. The heat-generated model and the flow-required model of the bearings and the gears were set up, and the required lubrication flow was obtained. The simulation model of the system flow distribution was established, the simulation analysis toward the dynamic characteristic of the transmission’s lubrication flow’s distribution was performed, and the results of the simulation analysis and the test were analyzed comparatively. The result showed that the simulation model matched the test result well, proving the effectiveness and correctness of the model of the transmission’s flow distribution.

Computer-Simulation Analysis of Foraging by Heteromyid Rodents in Relation to Seed Distributions - Implications for Coexistence

1994 ◽  
Vol 42 (4) ◽  
pp. 467 ◽  
Author(s):  
OJ Reichman ◽  
E Roberts
Keyword(s):  
Computer Simulation ◽  
Simulation Model ◽  
Simulation Analysis ◽  
Computer Simulation Model ◽  
Foraging Patterns ◽  
Uniform Distributions ◽  
Naturally Occurring ◽  
Sufficient Energy ◽  
Heteromyid Rodents ◽  
Seed Distribution

A number of hypotheses have been proposed to explain the mechanisms that promote coexistence among sympatric rodents in North American deserts. In an effort to determine how the distribution of seeds influences foraging patterns and coexistence in a three-species community of heteromyid rodents, we developed a computer simulation model that determines the efficiency of foraging for animals of different sizes. Specifically, the simulation determines how long it would take a forager to gather sufficient energy for 24 h if the animal stopped at seed patches of certain densities. The analyses were conducted for naturally occurring seed distributions and densities, for simulated normal and uniform distributions at natural densities, and for natural distributions at seed densities one-third those known to occur naturally. The results indicate that, under natural distributions and densities, each of the three species possessed unique optima for utilising seed patches of different density. However, when either the seed distribution or density differed from actual values, all three species had identical optima. The implications of these results for promoting coexistence are discussed.

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 Analysis of Motor Vehicle Ride Comfort Based on Adams

2012 ◽  
Vol 224 ◽  
pp. 243-247
Author(s):  
Cai Bin Li ◽  
Fu Yun Liu ◽  
Ju Cai Deng
Keyword(s):  
Simulation Model ◽  
Motor Vehicle ◽  
Ride Comfort ◽  
Simulation Analysis ◽  
Simulation Method ◽  
Damping Force ◽  
Vibration Experiment ◽  
Heavy Truck ◽  
Vibration Simulation ◽  
Stiffness And Damping

Applying ADAMS to vibration control field of heavy truck. The vibration simulation model of a truck is established. With the simulation model, different acceleration responses under different suspension stiffness and damping force are simulated. The simulation result is close to the actual result. It shows that the simulation method is benefit to reduce the number of vibration experiment and to forecast the vibration response of heavy truck.

Simulation Analysis of Production Control Methods in Manufacturing Systems

2012 ◽  
Vol 490-495 ◽  
pp. 1704-1708
Author(s):  
Shao Wei Feng ◽  
Jing Zhang ◽  
Shao Chun Ding
Keyword(s):  
Simulation Model ◽  
Manufacturing Systems ◽  
Production Control ◽  
Simulation Analysis ◽  
Production Performance ◽  
Buffer Size ◽  
Total System ◽  
Manufacturing Management ◽  
Performance Indexes ◽  
System Output

It is very important to improve shop production performance in manufacturing process. The main manufacturing management methods include Kanban and Drum Buffer Rope (DBR) systems. In this paper computer simulation is used to evaluate the performance of these manufacturing systems. A simulation model was developed to collect and analyze some key performance indexes including total system output, flow time and average WIP invention. The optimal buffer size was found out by studying the two manufacturing systems at different capacities. The systems were also compared with and without machine breakdowns. The simulation model provided a significant insight into the two systems and the benefits of both the systems were realized

Dynamic Characteristics Simulation of Radiator Fin Blanking Machine Hydraulic System

2014 ◽  
Vol 687-691 ◽  
pp. 496-499
Author(s):  
Jie Wang
Keyword(s):  
Simulation Model ◽  
Dynamic Characteristics ◽  
Hydraulic System ◽  
Simulation Analysis ◽  
Good Condition ◽  
Hydraulic Cylinder ◽  
Simulation Software ◽  
Product Line ◽  
Leading Role

The hydraulic system of radiator fin blanking machine plays a leading role in the radiator fin production. Its performance directly affects the efficiency and quality of product line. The hydraulic system of blanking machine for radiator was composed of blanking circuit and support circuit. The hydraulic system realizes the cutting action using the reciprocating movement of the hydraulic cylinder. The hydraulic system simulation model was built by the simulation software of AMESim in this paper. Using the simulation model, the simulation analysis of the dynamic characteristics of hydraulic system were completed. The hydraulic system has been through the debugging and put into production, running in good condition.

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