Abstract
The process of the adapter separating from the missile plays an important role in the safety and reliability of missile launching, which involves complex dynamics calculations. In order to guarantee the safety of separating the adapter from the missile and successfully launching the missile, this article was concerned with the whole process of the adapter separating from the missile launching system and presented a novel calculation method and visual simulation software to analyze the dynamics process of adapter separation. The dynamics models including the coordinate system, dynamics and kinematic equations, and the forces acting on the adapter are established. The random factors and their distribution law that greatly influence the separation process are analyzed, the confidence intervals of the separation reliability are estimated by using the Monte Carlo method, and an algorithm for calculating the distance between the adapter, missile wing, and tail rudder is proposed. Visual simulation software for analyzing the separation process is designed, which gathers modeling, solving, and analytical processing. Finally, a numerical simulation result is given to verify the validity and correctness of the proposed method and software and analyze the factors affecting the separation reliability of the separating process of adapters for missile launching. The method and software presented in this paper can provide support for the safety design of missile adapter separation.
Highlights
Nowadays, countries have increasingly listed missiles as a new generation of advanced precision-guided weapons in their equipment plans
In order to analyze the main factors affecting the separation reliability between a missile and adapters for the launching process, a six DOF underwater dynamic model for the missile and adapters is utilized to simulate the separation process, considering the elastic forces of separating springs, hydrodynamic forces, gravity, and buoyancy, and a criterion based on the maximum separating distance is put forward to determine whether adapters separate from the missile reliably
The works and contributions of this article are listed as follows: (a) The dynamics and kinematics of the adapter separation and the mathematical description of the aerodynamic force and separation spring force are established; (b) According to the distribution law of each random variable, an algorithm is designed to generate the sampling value of each random variable; (c) Design the algorithm to calculate the distance between the adapter, missile wing and tail rudder, which is used to judge whether the adapter collides with other components; (d) Visualization simulation software for the dynamics calculated for the adapter separation was built, which gathers the model design, dynamics calculation, animation, and curve output for adapter separation
Summary
Countries have increasingly listed missiles as a new generation of advanced precision-guided weapons in their equipment plans. In order to analyze the main factors affecting the separation reliability between a missile and adapters for the launching process, a six DOF underwater dynamic model for the missile and adapters is utilized to simulate the separation process, considering the elastic forces of separating springs, hydrodynamic forces, gravity, and buoyancy, and a criterion based on the maximum separating distance is put forward to determine whether adapters separate from the missile reliably.. Anandhanarayanan et al. simulated the separation dynamics of an agile air-to-air-missile from a fighter aircraft using an integrated store separation dynamics suite, which is used to obtain the aerodynamic force on the missile, and the force is integrated using a rigid body dynamics code to obtain the missile position In all these papers, the methods are focused on analyzing the performance, reliability, and safety of the separation of adapters but lack systematic methods and visual simulation software for analyzing the separation of adapters. The adapter needs to meet the requirement of long-term compression without permanent deformation, requiring well dynamic compressive strength
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