Coupled Dynamic Simulation For Carrier-separator Separation

The carrier-separator system has been widely applied in engineering in the air,such as carrier aircraft-air dropped materials,carrier aircraft-air launched rockets,wave-rider-cruise aircraft etc.,so it is of great significance to the study of the separation dynamics of the carrier-separator system.First of all,based on the analysis of the working process and characteristics of the carrier-separator system in the air separation,the mechanical model of the system is established.According to the three stages of the separation of the separation system,the constraint relationship of the system is analyzed,and the stress condition of the extraction-stabilization parachute,the carrier and the separator is analyzed.Secondly,multi-body dynamic equation of the carrier separator system is derived,and the simulation model of the system is established using ADAMS software.Afterward the constraints and forces are defined.The ADAMS user subroutine is written to add complex aerodynamic force.The user interface is established through secondary development,and the parameterization of the model is realized.Finally,taking a carrier-separator system as the research object,the separation process of the entire system is simulated in detail according to the conditions of engineering.The angle,redundancy and EVA are compared and analyzed by the coupling effect,and the influence of drag characteristics of extraction-stabilization parachute and the initial state on the ignition state of separator is analyzed.The results and conclusions obtained in this paper have important directive significance and engineering value for the design of the separation process of the carrier-separator.