CAD of Gating System for Injection Mold Based on the Secondary Development Technology of PRO/E

2010 ◽  
Vol 148-149 ◽  
pp. 453-457
Author(s):  
Zheng Hao Ge ◽  
Yi Qu ◽  
Ya Nan Zhou
Keyword(s):  
Flow Rate ◽  
Material Properties ◽  
Cost Reduction ◽  
Secondary Development ◽  
Injection Mold ◽  
Gating System ◽  
Second Development ◽  
Development Technology ◽  
Pressure Fall

The gating system is usually made up of the sprue, the runner, the gate and the slag well. It is an important component of the mold. On the basis of relationship among runner’s geometry, the pressure fall of plastic melt flowing in runner, flow rate and material properties, we can use the UDF library features and Pro / Toolkit functions in PRO / E software to do the second development of PRO / E software. As a result, we can establish the CAD module of gating system for the injection mold. The module has the perfect function and good generality and can help the designer for cost reduction. It may be used whenever you want to use. The PRO / E software has a powerful function to design mold. Taking these as a base, it is very convenient for the module to design the gating system of injection mold.

Application of Ug Re-Development Technology in 3-D Parameterized Modeling of Injection Mould Parts

2012 ◽  
Vol 522 ◽  
pp. 847-850
Author(s):  
Long Xiang ◽  
Wen Lei Sun ◽  
Lian Ying He ◽  
Jian Zhang ◽  
Shu Jun Guo
Keyword(s):  
Secondary Development ◽  
Mold Design ◽  
Injection Mold ◽  
Design Efficiency ◽  
Parameterized Design ◽  
Development Tools ◽  
Parts Library ◽  
Parameterized Modeling ◽  
Development Technology ◽  
Open Api

On the foundation of deeply studying UG re-development technology and synthetically utilizing its secondary development tools, including UG/Open MenuScript, UG/Open UIStyler, UG/Open API and Visual C++ 6.0, a dedicated 3D parts library of injection mold is established, parameterized design of injection mold is achieved and mold design efficiency improved.

Research on Enterprises Resettlement in the Second Urban Land Resource Development - Taking High-Tech Zone in Suzhou for Example

2013 ◽  
Vol 357-360 ◽  
pp. 1465-1469
Author(s):  
Yong Du ◽  
Wen Xue Yu
Keyword(s):  
Resource Development ◽  
Urban Land ◽  
Space Distribution ◽  
Secondary Development ◽  
High Tech ◽  
Land Resource ◽  
Construction Land ◽  
Second Development ◽  
Industrial Enterprises ◽  
The City

As cities are expanding of China, many industrial enterprises have been surrounded in the center of the, which have a big effect on the environment of the city. As a result, its necessary to remove these enterprises. The second urban land resource development is an efficient solution to the problem. This article takes the secondary development of land in High-tech Zone of SuZhou for example and defines second development of land. In addition, puts forward suitable type of settling down the moving enterprises because of urban land second development. The study aims at promoting the rational use of land, adjusting space distribution of construction land, disposing land resource reasonably, increasing using rate of the construction land and makeing ecological environment of the city be better.

scholarly journals Measurements of Flat-Plate Milk Coolers

2014 ◽  
Vol 62 (5) ◽  
pp. 1057-1064
Author(s):  
Vlastimil Nejtek ◽  
Jiří Fryč ◽  
Josef Los
Keyword(s):  
Flat Plate ◽  
Flow Rate ◽  
Cost Reduction ◽  
Cooling System ◽  
Cooling Water ◽  
Electricity Consumption ◽  
Measured Data ◽  
Cooling Process ◽  
Throttle Valve ◽  
Plate Cooler

Measuring in laboratory conditions was performed with the aim to collect a sufficient quantity of measured data for the qualified application of flat-plate coolers in measuring under real operating conditions. The cooling water tank was filled with tap water; the second tank was filled with water at a temperature equivalent to freshly milked milk. At the same time, pumps were activated that delivered the liquids into the flat-plate cooler where heat energy was exchanged between the two media. Two containers for receiving the run-out liquid were placed on the outputs from the cooler; here, temperature was measured with electronic thermometer and volume was measured with calibrated graduated cylinder. Flow rate was regulated both on the side of the cooling fluid and on the side of the cooled liquid by means of a throttle valve. The measurements of regulated flow-rates were repeated several times and the final values were calculated using arithmetic average. To calculate the temperature coefficient and the amount of brought-in and let-out heat, the volume measured in litres was converted to weight unit. The measured values show that the volume of exchanged heat per weight unit increases with the decreasing flow-rate. With the increasing flow-rate on the throttled side, the flow-rate increases on the side without the throttle valve. This phenomenon is caused by pressure increase during throttling and by the consequent increase of the diameter of channels in the cooler at the expense of the opposite channels of the non-throttled part of the circuit. If the pressure is reduced, there is a pressure decrease on the external walls of opposite channels and the flow-rate increases again. This feature could be utilised in practice: a pressure regulator on one side could regulate the flow-rate on the other side. The operating measurement was carried out on the basis of the results of laboratory measurements. The objective was to determine to what extent the use of flat-plate coolers under specific conditions results in cost reduction and improved milk cooling process. The measurement was performed in several cycles. The first measurement took place in the existing system without the use of the flat-plate cooler. The volume of drawn milk was monitored throughout the milking process along with its temperature, temperature in the tank and electricity consumption of the cooling system. At the second stage, the flat-plate cooler was introduced into the cooling process, which was followed by monitoring the milk and cooling water volume, their temperature, temperature in the tank and electricity consumption of the cooling system. The measured data indicate considerable power cost reduction if upstream flat-plate coolers are applied.

Optimization of Aircraft Mid-Fuselage Structure Design Based on Parametric Modeling

2014 ◽  
Vol 933 ◽  
pp. 423-427 ◽  
Author(s):  
Chao Ying Zhang ◽  
Hu Liu ◽  
Yun Peng Ma
Keyword(s):  
Structural Response ◽  
Aircraft Design ◽  
Element Model ◽  
Parametric Model ◽  
Structure Design ◽  
Parametric Modeling ◽  
Secondary Development ◽  
Typical Structure ◽  
Development Technology ◽  
Cae Technology

In aircraft preliminary design, fuselage structure design is important, and to reach the lightest weight is the main target for aircraft design, especially for civil aircraft. Based on CAD/CAE technology, the paper selects a typical structure layout form of aircraft mid-fuselage to study the method of structure model quickly creation and optimization. First, it focuses on fuselage parameterized modeling method, based on CATIA secondary development technology, to create the mid-fuselage parametric model. Then, based on Patran command language, the CAD model achieves automatic meshing. Finally, selecting an appropriate strategy and using iSIGHT integrated with fuselage parametric model and finite element model, and referring to the calculated the structural response by Nastran to realize mid-fuselage structure optimization.

scholarly journals An Alternative Solution of Train-Track Dynamic Interaction

2019 ◽  
Vol 2019 ◽  
pp. 1-14
Author(s):  
Zhaowei Chen ◽  
Hui Fang
Keyword(s):  
Calculation Method ◽  
Secondary Development ◽  
Train Track ◽  
Computational Accuracy ◽  
Explicit Integration ◽  
Application Range ◽  
Computing Platform ◽  
Development Technology ◽  
Railway Engineering ◽  
Track Bridge

Train-track interaction (TTI) is a classic research topic in railway engineering, which consists of three main parts, namely, train model, track model, and wheel-rail interaction. To improve the computational accuracy and broaden the application range, an alternative calculation method to investigate TTI based on secondary development technology of the commercial software ANSYS through APDL language is introduced in this article. Primarily, the train-track interaction theory is briefly presented. On this basis, TTI is programmed and implemented on the computing platform of ANSYS by fully taking the nonlinear wheel-rail interaction into consideration. In this calculation method, the train model, which is established based on multibody dynamics theory and solved by an advanced explicit integration method, is programmed into ANSYS through APDL language, while the track part is simulated according to finite element theory. Then, the proposed calculation method is validated with field test results to verify the validity. Finally, a numerical demonstration is conducted employing the present method. Results show that the introduced method is effective and able to investigate TTI. Different complicated track systems can be accurately simulated employing this method. Moreover, this method is also adoptable to explore train-bridge interaction and train-track-bridge interaction.

Key Technologies of Development of Intelligent Overall Layout Design System for Bus Body

2011 ◽  
Vol 121-126 ◽  
pp. 928-932
Author(s):  
Jing Xin Chen ◽  
Jing Xian Chen ◽  
Jing Zhang
Keyword(s):  
Three Dimensional ◽  
Layout Design ◽  
Parametric Modeling ◽  
Secondary Development ◽  
Design System ◽  
Database Access ◽  
Body Development ◽  
Development Technology ◽  
Bus Body ◽  
Function Module

Based on the requirements and characters of overall layout design of bus body, development process, overall structure, function module and deduction network of Intelligent Overall Layout Design System for Bus Body were built. It is illustrated systematically how the object-oriented modeling technology, deduction technology based on knowledge, secondary development technology based on CATIA, three dimensional parametric modeling methods and technology of database access etc were applied to the design and development of the system. The function of the system was verified through a case of specific bus body overall layout design.

Moldflow-Based Optimization Design of Gating System in Injection Mold for Automobile Bumper

2014 ◽  
Vol 1061-1062 ◽  
pp. 465-470 ◽  
Author(s):  
Bin Xu ◽  
Zhi Yuan Rui
Keyword(s):  
Design Optimization ◽  
Optimization Design ◽  
Weld Line ◽  
Injection Pressure ◽  
Optimization Method ◽  
Optimum Number ◽  
Injection Mold ◽  
Gating System ◽  
Filling Process ◽  
Filling Time

The gating system of an injection mold for car bumper was studied. A design optimization scheme is proposed to optimize both the number and locations of the gates by analyzing the filling process, in order to reduce the part war page and weld line, numerical simulation of injection mold filling process is combined with the design optimization method to find the optimum number of gates and their locations to achieve balanced f low and less weld lines while satisfying the limit of injection pressure. Moldflow software was applied to make analysis and comparison of various gating system in terms of their filling time, injection pressure and clamp force, weld line and distribution of air traps, and an optimized gating system was obtained. The result shows that this method can effectively reduce costs, shorten development cycle and improve the efficiency of molding design.

Deep Solvent Trough for Thin Layer Chromatography

1979 ◽  
Vol 62 (5) ◽  
pp. 1181-1182
Author(s):  
Mary W Trucksess ◽  
Leonard Stoloff
Keyword(s):  
Thin Layer ◽  
Thin Layer Chromatography ◽  
Development Time ◽  
Solvent Polarity ◽  
Secondary Development ◽  
Thin Layer Plate ◽  
Second Development ◽  
Slow Moving ◽  
Layer Chromatography ◽  
Score Line

Abstract A deep solvent trough for thin layer chromatography is described. By use of this device a second development of a thin layer plate containing slow moving background compounds can be made without interference from these compounds when the solvent polarity is increased. A score line across the plate, separating the compounds of interest from the background, in combination with a solvent depth that bridges the score line, results in interference-free secondary development and reduced development time.

Study on Numerical Simulation Technology Based on ANSYS of Fracture Behavior in Metal Forming Process

2011 ◽  
Vol 130-134 ◽  
pp. 976-979
Author(s):  
Yan Guo Shi ◽  
Bao Jun Yao ◽  
Qing Ling Zhang ◽  
Xin Hua Mei
Keyword(s):  
Metal Forming ◽  
Fracture Process ◽  
Fracture Behavior ◽  
Fracture Criterion ◽  
Secondary Development ◽  
Ansys Software ◽  
Forming Process ◽  
Development Technology ◽  
Metal Forming Process ◽  
Simulation Results

This title use the ANSYS Secondary Development Technology as platform, developed the user101 element that stable for fracture process simulation, and embedded fracture criterion into ANSYS software. Realized the fracture forecast on metal forming process and verified the simulation results through the experiment.

A Secondary Development System on Grader Working Device Oriented to Mechanism Optimization

2011 ◽  
Vol 84-85 ◽  
pp. 115-119
Author(s):  
Rui Mu ◽  
Na Zhao ◽  
Yong Jun Pan
Keyword(s):  
User Interface ◽  
New Product Development ◽  
Optimization Design ◽  
Design Method ◽  
Complex Structure ◽  
Secondary Development ◽  
Development System ◽  
Second Development ◽  
Parametric Programs ◽  
Working Device

Because of the complex structure of grader working device, its optimization is a repeated, continuously improved process. A new model has to be set up before each optimization. In order to solve the problem of repeating modeling and improve the product optimization efficiency, a second development system of working device is established. Parametric driving about working device is realized in term of spatial mechanism. At first, the overall design framework of this second development system was established, then customized user interface was completed based on UG/Open API and parametric programs about the working device system were complied based on UG/Open Grip subsequently. The connection among customized user interface, parametric programs and human-computer interaction was realized by using Visual C++, the integrated second development system design of working device was eventually completed. This second development system could not only provide engineers with a rapid design method to shorten the new product development cycle, but solve the problem of repeating modeling during optimization design as well.

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