Advanced Materials Research Vols. 945-949

Abstract: In this paper, the FEM analysis of helicopter gondola for live working is analyzed with ANSYS, and based on modeling a simplified gondola model, which includes the appropriate elements selecting and the boundary conditions processing. The maximum stresses and the maximum deformations are calculated under nine kinds of load conditions, to determine which parts of the gondola are in danger, then provides references for the subsequent structure design of gondola.

Abstract: In this paper, the experimental research and the finite element analysis are carried out to investigate the spontaneous burst phenomenon of the tempered glasses in the lamination process of the PV modules. The simulation and the relevant analysis demonstrate that the spontaneous burst of the tempered glasses of the PV modules in the lamination process is closely associated with the toughening quality and the camber or bending of the glass. It is revealed by the simulation and experiments that the application of the unqualified toughened and camber or bending glasses is one of the main reasons of the spontaneous burst phenomenon in the lamination process of the PV modules.

Abstract: Accurate full vehicle handling prediction can be used to evaluate the vehicle dynamic performance. This paper presents the prediction and correlation of full vehicle handling with ADAMS/Car. After building the initial model, major flexible component, steering friction and damping was introduced to optimize the model that makes the model much more accurate. The model will be used to run four major vehicle handling events; the predicted results are compared with measured data. The correlation includes time history of steering wheel angle, steering torque, lateral acceleration, side slip angle, roll, yaw etc. It also includes the derivates such as understeer gradients, steering gradients, side slip gradients, roll gradients etc. It is shown that good correlations are obtained in handling;

Abstract: In the process of exploiting and trial-manufacturing the bus school, we find the small stiffness is insufficient, and there exits such phenomenon that small skin fractures and deformations. This paper Builds a three-dimensional model of the school bus by using CATIA software, and then imports the model into Workbench software, establishing a body frame finite model for free modal analysis. Analyzing the free modal of the body frame based on Workbench, we get the body frame’s inherent frequency and vibration mode, and evaluate the body frame vibration characteristics, and put forward improvement proposal on the problem of body frame.

Abstract: The mechanical design of computerized glove machine was traditional. It was not only lack of theoretical analysis of key institutions, but running stability needed to be improved. We analyzed the impact of the needle and cams which was based on the computerized glove machine’s knitting theory and key process points. On the basis of SolidWorks, 3-D model of computerized glove machine’s knitting element was created; We imported the 3-D model to ANSYS/LS-DYNA system and realized the motion simulation of needle and cams. As a result, we got the curves of needle’s displacement, velocity and acceleration. According to the simulation parameters of needle’s movement, the knitting element was optimized design. The result reveals that acceleration reaches a maximum of 0.63×10⁵m/s² when knitting time is 0.052ms. It reduces nearly 16% compare to the result before design optimization of knitting element. The smooth of computerized glove machine is being improved significantly.

Abstract: This paper describes an automated design system for trimming die structure. Considering the complexity of trimming dies, a modular design method was used to define module’s functions and determine the design processes of trimming dies. Through analyzing the relationship of structure and function of trimming dies, the systematic analysis of modularization for trimming dies is achieved from assembly-level division. By using parametric design method, the internal connection between modules is analysis from part-level division, and the module-based design process of complex part is accomplished. The CAD system for trimming dies is developed on platform of UGNX software. The application results show the high efficiency and design flexibility.

Abstract: According to design requirements of the slicer,3D model was assembled in SolidWorks;Alternating motion of the slicer applies slider-crank mechanism.With the friction wheel cover,friction wheel can be arbitrary thickness within a certain range of sections. Using the SolidWorks software development can shorten design time and save money.

Abstract: Due to the diversity of bulk cargo, different capacity of throughput and complexity of environmental requirements, different grabs need to be designed rapidly to meet demands of users. However, current grab design is inefficiency and relies on experience of designers because there are still no mature and agreed specifications. Together with the design ideas, experience and standards, grab virtual design system, which is the output of secondary development on the basis of common mechanical CAD system by using virtual design theory, is developed and applied to devise new grab. Its application has shortened the design cycle and improved the design efficiency.

Abstract: At present, the accurate dynamic modeling and simulation of complex movement mechanism using a single software is a difficult problem. The paper proposes the "collaborative simulation run" method of multi-domain model based on the interfaces of multi simulation software, and it can achieve the design and analysis of complex mechanism system. Selecting the 3D modeling software Pro/E, the dynamics analysis software ADAMS and finite element analysis software ANSYS as a collaborative modeling analysis platform, the transmission relationship between software data interfaces is studied, and the rigid flexible coupling dynamic modeling process of complex mechanism through the Pro/E, ANSYS and ADAMS is explored, which prepares accurate model for dynamic simulation of complex mechanism. The study results show that the multi-software collaborative modeling method is suitable for complex mechanical dynamics modeling.

Abstract: To avoid the disadvantages of the traditional storage system, the dense storage system is presented. In the dense storage system, many cargo boxes can be stored on the shelf depth direction, and the shuttle car is adopted as the transport equipment. Based on Flexsim software, through the simulation analysis, the results showed that the efficiency of the intensive storage system decreases, but the storage area and equipment costs are greatly reduced.