Research On 3D Virtual Simulation Technology Of Building Breaking Process

There are many kinds of architectural breakage in our real life,which include human factors and natural factors.For example,the old buildings collapse due to long-time disrepair,abandoned buildings broken by blasting,the plane crashed into the city and caused damage to the buildings,.These are accompanied by crashes and broken stones.Natural disasters,such as floods,earthquakes and debris flows,causing buildings to collapse,meteorite fall cause buildings to be damaged.The breakage of buildings under these conditions is often accompanied by casualties and property losses.At present,there is no theoretical basis for this phenomenon,and it is generally based on experience to make predictions and take measures.Only relying on manual experience can not be prevented in advance,which is not good to adjust the countermeasures in time.The 3D simulation of building crushing process can help experts analyze dynamic movement and provide effective reference models and basis.The three-dimensional simulation of building fragmentation is very necessary in real life or in virtual reality applications.In this paper,3D simulation software Maya is applied to realize 3D virtual simulation of building crushing process.The three-dimensional model of building is created by software,and the software's embedded script language MEL language is used to write the broken building program to break the building quickly.The particle system is used to simulate the dynamic effect of the broken stone distribution according to the basic properties of the broken stone.According to the empirical formula of gravel movement after blasting demolition,the dynamic analysis of the moving state of the broken building is carried out,and the dynamic effect of the 3D simulation is realized in the software.According to the characteristics such as speed and quality of gravel,the main parameters affecting the location change are extracted.Introducing the particle swarm optimization algorithm and analyzing the particle swarm optimization and the actual movement of crushed stone in real life,the explosion operator is added to the basic particle swarm optimization algorithm,and the particle swarm optimization algorithm added to the explosive operator is applied to the broken stone movement to find the global optimal value.The algorithm is simulated in Matlab to find the optimal solution of its fitness function.The simulation results verify the effectiveness of the algorithm.The results show that the particle swarm optimization algorithm added to the explosion operator is applied to the crushed stone system after the building is broken.The convergence speed and the convergence precision of the algorithm are improved.