Collaborative Simulation Technology Research Articles

Research on inflation and floating-up process of unmanned underwater vehicle based on collaborative simulation technology

For solving the problem of unmanned underwater vehicle (UUV) recovery, a multidisciplinary collaborative simulation method is proposed to simulate the inflatable deployment of an annular airbag and the motion of an UUV: a) a deployment dynamic model of the underwater airbag is established, the volume expansion rate curve of the airbag during the inflatable deployment process based on the control volume algorithm is obtained, and the accuracy of the model is verified by experiments; b) under the condition of a constant volume expansion rate of the airbag, a hydrodynamic model that couples the six-degree of freedom rigid body motion and the local deployment of the airbag is established, and calculations are performed using a custom program. The simulation method is used to study the effects of the ‘stop’ water depth on the motion characteristics of the vehicle, and the accuracy of the calculations is verified via the two-way fluid-structure interaction method. According to the calculation results for the effective deployment volume of the airbag and the motion curve of the centre of mass of the underwater vehicle, the ultimate floating depth of the vehicle can be predicted, which provides a reference for engineering implementation.

Finite Element Analysis and Optimization of Thermal Deformation of Resin Concrete Manufacturing Bases

Resin concrete generally has good mechanical properties, excellent thermal stability and great vibration resistance, the model of the ultra-precision machining center bed is established to study the thermal stability of the resin concrete using virtual reality and collaborative simulation technology based on Pro/E and ANSYS Workbench. The main factors that affect the machine tool bed thermal deformation were found through analyzing the deformation results and the materials and restrain conditions were optimized. The results proved that the optimized machine tool bed has good thermal stability and theoretical basis was provided to improve the thermal stability of the ultra-precision machining centers.

Fatigue Analysis of Planet Carrier Based on Collaborative Simulation

The fatigue analysis of planet carrier of shearer cutting unit was carried out based on collaborative simulation technology. Through co-simulation, the fatigue cloud of planet carrier was obtained, which provided a basis for planet carrier structural optimization and improved the planet carrier reliability.

Research on Moving Target Monitoring Collaborative Simulation Technology Based on Multi-Channel

Multi-channel Virtual reality simulation technology is a kind of simulation technology, which support the grand scene and high degree of immersion, has better visualization effect. In this paper, a moving target monitoring collaboratory simulation technology based on multi-channel is studied. Firstly, study the mathematical modeling foundation of Multi-Channel technology systematically, based on the mobile target spatial model and co-simulation technology, select the appropriate applications of multi-channel technology, building laboratory simulation platform and achieved a space-based six-degree of freedom simulation of multi-channel moving target monitoring simulation. The experiment has proved that in multi-channel target monitoring co-simulation technology used in this paper has strong practicality, combine with a moving target-space model and co-simulation technology, the advantages of objective observation to solve the requirements like large-scale, realism, immersion requirements, etc.

A HLA-Enabling Method in Collaborative Simulation Environment for Complex Product Development

HLA-based collaborative simulation is an effective way to integrate different disciplinary models together for the design and development of complex product. In this paper, the HLA-enabling method based on HLA agent model is proposed to make models created through commercial software compatible with HLA standard. Next, a prototype system for forging manipulator system based on such HLA-enabling method is developed accordingly, where an approach of developing ABAQUS engine agent is proposed, which solves the difficulty of wrapping ABAQUS software. Finally, a case study on forging and manipulating process is conducted and verifies the high fidelity and effectiveness of our collaborative simulation technology.