Advanced Materials Research Vols. 655-657

Abstract: The 3D model of a multi-functional office chair is completed by SolidWorks and imported into ADAMS. On this basis, we establish damping rubber model by ANSYS and import it into ADAMS through the interface between ADAMS and ANSYS. In this way, the damping rubber is added to dynamics simulation of the chair. The simulation results show that the damping rubber model established by ANSYS can bring perfect damping effects between the gear and base when the rubber is used in the chair. The results also show that the design of the multi-functional office chair can fully meet the requirements.

Abstract: Established the 3D model of the automatic feeding punch mechanism in SolidWorks and imported it into ADAMS to make dynamic simulation. Kinetic curves of the actuating mechanism were measured. These curves show the cooperation between the pressing mechanism and the feeding mechanism is well. The transmission angle and working length were measured. Calculated the coefficient of travel speed variation is 1.77 and the required power is 1.7KW. Finally, choose the type Y100L1-4(2.2KW) motor in the given resistance. The results show the mechanism can fulfill the anticipative design requirements and successfully verify the feasibility of the design project.

Abstract: To prepare for the Kneading Mixer paddles structure optimization,five independent parameters were selected to establish paddles, material pot diameter D, minimum clearance e, hollow paddle helix angle α2, and the angular velocity of two paddle ω1,ω2.Then establish geometric relationships and the constraints. And using pro / E software parameters-driven to achieve the parametric design of the complexity paddles.

Abstract: The software compiled by VB had good visualization and the finite element analysis of ANSYS was a rapid, precise and effective method, both of these advantages were combined by the interface technology between VB and ANSYS. Through parameterizing the structure, material and load of the lifting lug, a friendly human-machine interaction interface was developed in this paper. This software improved shipyard's engineering designers work efficiency at all levels, the safety of hull block turn-over and lifting was improved too.

Abstract: This paper established a model of mechanical arm of hot extruding and upsetting machine. According to design requirements of mechanical arm of hot upsetting extruding machine, established the 3D model of parts and the parts assembly by using 3D modeling software SolidWorks. This design realizes cyclical movement of mechanical arm that 120° level rotation and up-downswing 15° by incomplete gear mechanism and cam mechanism, and verified the feasibility of designing the project by SolidWorks.

Abstract: Established the model of automatic feed punching mechanism by using 3D modeling software SolidWorks, we finished the 3D model of parts and parts assembly according to the design automatic feed punching mechanism’s requirements. This design based on the double-crank seven-bar mechanism as pressing mechanism and cam mechanism as feeding mechanism, completed the combination of pressing mechanism and feeding mechanism and the automation of the mechanism.

Abstract: This paper introduces the secondary development of Pro/E with VB , established the parametric design software of friction plate which including part design module and quotation module. In parts design module user can input parts parameters for automatically model regeneration in Pro/E. Quotation module solved the common problems such as long time-consuming and inaccurate calculation, provided a more convenient, fast and practical tool for quoted price.

Abstract: Based on Dynamics of Flexible Multi-body theories, the flexible multi-body model of tower crane is established, by using the module of ADAMS/FLEX. The vibration characteristics of tower crane is analysed during the case of braking slewing motion by introducing the modal neutral file of tower crane flexible jib and mast. Advices are given in this paper for the dynamic analysis and the control design of tower crane.

Abstract: A precision air bearing rotary stage driven by direct-driven motor is proposed. The structural characteristic of the rotary system is introduced, and the mechanism of structural thermal deformation and heat dissipation of aerostatic direct drive rotary stage were analyzed. The simulation models of static and transient temperature field are built, and thermal-structure coupled filed is calculated. The internal steady thermal field diagram and key nodes temperature curve of the rotary stage are obtained. Based on the temperature analysis results, the rotary stage structural deformation is established. The cooling method is provided, and result shows that the cooling way is effective.

Abstract: As the EMUs (Electrical Multiple Unit) light frame structure, combined of many complex surfaces, building its geometric model directly is a big challenge. Reverse Engineering Technology is adopted to make the light frame redesign. Considering the characteristics of the frame surface with big curvature changed, irregular contours of structural features and IGES based model, authors proposed the model reconstruction method, by using independent geometric module in Pro/E. Firstly, establish base planes from IGES file, then duplicate light frame surface from IGES file to generate a set of intersection curves with the base planes and surface duplicated above as mixed guide curves. After that, curvature analysis technique is presented for intersection curves precision check. And finally, the 3D model is reconstructed by boundary blend technology. The original data imported can be removed from this model in order to support parts redesign as well as their manufacturability analysis. Research outcomes above offer an efficient innovation solution for surface reconstruction with curvature changed dramatically and IGES based model as well.