Research On The Protection Mechanism And Optimization Design Of The Corrugated Anti-explosion Protection Structure At The Bottom Of The Vehicle

Modern military armor plays an increasingly important role in modern warfare.Military vehicle play a decisive role in nation defense,modern military equipment and personal transport and combat are dependent on vehicle,so the research of military vehicle protection technology has become an important topic of modern national defense.Various universities and research institutions have carried out in-depth research on how to improve vehicle protection performance,which is of profound significance to the development of bottom protection technologyBased on a certain type of armored vehicle as the research object,through theoretical analysis,simulation and vehicle road test as the research train of thought,in order to further improve the protective performance,the introduction of corrugated protective component structure,and the protective components and body at the bottom of the multi-objective optimization design,the protection of lightweight components at the same time improve the protective performance of the vehicle.In this paper,the target plate test is first carried out.According to the target plate test,the target model is established by different explosion simulation calculation methods.According to the comparison between the test results of the target and the simulation results,the advantages and disadvantages of different algorithms are analyzed.After that,the test of the protective component bench is carried out,and the simulation calculation is carried out under the ALE algorithm.By comparing and verifying the accuracy of the model,different types of protective components are built on the basis of the model,and the deformation and overpressure are used as evaluation indexes to compare different shapes.Protective performance of protective components,verifying the protective performance of double V-type protective components,and analyzing the influence of different structural parameters on the performance of double V-type protective components.Then,based on the vehicle explosion test,the vehicle model is built,and the double V-type protection component is applied to the bottom of the vehicle for simulation calculation to verify the protection performance of the double V-type protection component on the whole vehicle.Finally,the multi-objective optimization design calculation of the structural parameters and quality of different double V-type protection components is carried out to reduce the protection quality of the body protection components.At the same time,the dummy protection is used as the evaluation index to improve the overall vehicle protection performance of the double V-type protection components.Improve vehicle maneuverability and economic performance.Through the research in this paper,it is found that when the explosion point is located on the side,the double V-type protection component has good protection performance,and can effectively reduce the calf force of the occupant and the force of the spine.It has certain guiding significance in the design of body protection components,and provides a theoretical reference for the optimization design analysis of vehicle protection performance.