Papers by Keyword: Virtual Prototype

Abstract: The paper deals with design, modeling, and dynamic analysis of an integral (4-wheel) steering system for 2-axle cars. The study is focused on the steering box of the rear wheels, which is based on cam - follower mechanism. In the proposed concept, the integral steering intends to improve the stability and handling of the vehicle by considering the integral steering law, which is formulated in terms of correlation between the steering angles of the front and rear wheels. In this regard, a double-profiled cam is designed, whose profile dictates the translational movement of the follower, which is connected to the rear left and right steering tie-rods. The dynamic modeling and simulation of the 4-wheel steering vehicle was performed by using the MBS software package ADAMS. The results of the dynamic tests demonstrate the handling and stability performances of the proposed system, in relation with a classical 2-wheel steering vehicle.

Abstract: The paper presents the works performed by the authors in the field of AS/RS systems design and experimental small scale AS/RS physical model set-up for educational purposes. First part of the paper presents the virtual prototype of the 3D CAD model of the AS/RS system and the developing of the physical model set-up of an experimental small scale AS/RS for educational purposes. The specific hardware for control the AS/RS system and software for programming it are also included in a second part of the paper.

Abstract: The paper presents the works performed by the authors in the field of AS/RS systems design and experimental small scale AS/RS physical model set-up for educational purposes. First part of the paper presents the virtual prototype of the 3D CAD model of the AS/RS system and the developing of the physical model set-up for an experimental small scale AS/RS for educational purposes. The specific hardware for control the AS/RS system and software for programming it are also included in a second part of the paper.

Abstract: The steering quality is one of the most important targets which reflect the flexibility of the vehicles. In this paper, the basic composition of the changeable tracks was introduced and then a virtual prototype of the shovel loader with four tracks was established according to the truth designing dimensions. After which the simulation was done to analysis it’s steering qualities. The results indicate that the shovel loader with four tracks have strong maneuverability and stability when turning around. This simulation provides theory supports for the further research of this new kind of tread structure.

Abstract: This paper has introduced the method how to establish a model for the virtual prototype of new type folding-arm gondola CD 250 based on the ADAMS technology, then to do analyses and inspection for the built virtual prototype, and to combine the test results with the traditional DOF calculation to sum up the feasible calculation method for DOF, finally, further verify the rationality of the model, which provides the necessary foundation for subsequently utilizing the virtual prototype technology to analyze the working condition of the gondola.

Abstract: A new type of vibration platform was presented and its dynamic characteristics was studied in this paper, A virtual prototype model of vibration platform was built by using software Soldworks and ADAMS.The flexible body model of spring was built based on ADAMS flexible module,rigid-flexible coupled dynamic of vibration platform were analyzed by using simulation, the natural frequency, model of vibration and frequency response were further analyzed. The stiffness of spring and flexible cable were optimized according to the analysis results, The post-optimality simulation results show that the stability and frequency response of vibration platform have improved.

Abstract: Aiming at the current situation of long cycle and high cost for planetary reduction gears designing and manufacturing in the field of engineering machinery, analysis on the environment has been established by using reducer virtual prototype in this paper, simultaneously the article brings forward a strong realization system from virtual simulation to finite element analysis. The results show that the virtual prototype model possesses high reliability and rapid correction method, it can shorten the design cycle greatly, and the method has certain practical application value.

Abstract: The achievement of space orbit service space autonomous docking technology. At present, many kinds of autonomous docking mechanism are appeared according to different service object. In order to widen the application range from lives of docking mechanism, design a space rod - cone docking mechanism in this paper. The mechanism can be in the context of a larger space, achieve self-occupied docking. And based on the ADAMS-View to complete the mechanism dynamics virtual prototype. According to the space orbit autonomous docking technology, set up virtual prototype mainly docking detection parameters, Analysis of dynamic characteristics in the whole of the docking process and complete the mechanism.

Abstract: The main approach to obtain nanomaterial is nanospinning technology at present. Due to the inherent characteristics of nanomaterial itself, which are easily affected by the electric field force effect of spinning. And for the spinning machine nozzle electric field is relatively complex, so nanospinning products at present, is easily affected by the electric field force and dissipated. So, the nanospinning collection efficiency is low. This paper adopts an oval enhanced electrostatic mechanism, method of using additional electric field to improve the balance obtained nanomaterial collection rate. And the construct high voltage electrostatic spinning machine virtual prototype,complete the analysis of the improved method of static electric field. The analysis results indicate that the electric field can effectively improve the collection rate of nanospinning. Through the study of the additional electric field strength further size on the electric field force and the ellipse, can more effectively improve the collection rate of nanospinning products.

Abstract: In order to observe the kinematic characteristic and dynamic characteristic of working state of hydraulic excavator, and aim at the complexity and time consuming of the numerical calculation and field test, the hydraulic excavator working device motion simulation and analysis scheme is put forward. By kinematics simulation, the envelope trajectory of the manipulator and the basic working parameters are got; by dynamics simulation, the force of each hinge in symmetrical and offset loadings is got, and the most hazardous working condition and hinge are determined. Thus provided the basis for strength analysis and design optimization of hydraulic excavator working device. Accordingly, a simulation analysis method to study the dynamics of the working device in hydraulic excavator is provided.