Abstract
In order to overcome the shortcomings of the physical test conditions, research and development of the spacecraft container simulation verification platform to enhance the level of digital development of the spacecraft container. Based on the theory of rigid-flexible coupling dynamics, the dynamic model of the box system is established. The dynamic external excitation is determined by obtaining the track spectrum and identifying the condition of the line. Based on the computational fluid dynamics, the thermal model of the spacecraft container is established, and the container is realized by simulating the natural convection and air conditioning control spacecraft container thermal simulation. Using modular design, C/S architecture and navigation process to achieve the simulation platform architecture versatility, ease of maintenance and scalability and other needs. Finally, the mechanics and thermal performance verification of the spacecraft container and physical test are carried out. The results show that the simulation results of the box dynamic system and the thermal system are in good agreement with the experimental results.
Highlights
The spacecraft container is the electro-mechanical equipment to realize the function such as spacecraft ferry transport, made up of multiple subsystems, in the process of designing and using process, involving many professional departments such as force, heat, electricity, which need to be used in structural design and perform a large number of analysis and simulation work when planning formulation
To overcome the limited physical sports car test conditions and defection of measuring point are little, based on the demand of improving digital level of container, simulation verification platform for spacecraft container is urgently needed for research and development
Among them: p is the position vector of the hinge position; T is the angular transformation matrix; V is the state vector of hinge velocity; M is the mass matrix; F is the force and torque vector generated by the element; c is the dynamic state vector of the control unit and the control unit; s is the algebraic state of displacement and acceleration; t is for time; u is the external input of displacement and velocity level; λ is the binding force and torque; G is the jacobian matrix for the constraint equation ;Fc is dynamic state equation of the force and control unit; g is the constrained algebraic equation of constraint; b is the constraint algebraic equation related to the algebraic state quantity
Summary
The spacecraft container is the electro-mechanical equipment to realize the function such as spacecraft ferry transport, made up of multiple subsystems, in the process of designing and using process, involving many professional departments such as force, heat, electricity, which need to be used in structural design and perform a large number of analysis and simulation work when planning formulation. To overcome the limited physical sports car test conditions and defection of measuring point are little, based on the demand of improving digital level of container, simulation verification platform for spacecraft container is urgently needed for research and development. The design of the spacecraft container should be evaluated through the commissioning to evaluate the performance of the container, and decide whether it meets the required quality requirements .It is necessary to develop the simulation and verification platform for spacecraft transport container based on the demand of digital level. According to the container and the spacecraft, container digital mechanics simulation model and the thermal simulation model is established respectively, which can realize ,in the process of railway transport ,the simulation analysis of spacecraft container by simulation of the stress and temperature conditions. V is the state vector of hinge velocity; M is the mass matrix; F is the force and torque vector generated by the element; c is the dynamic state vector of the control unit and the control unit; s is the algebraic state of displacement and acceleration; t is for time; u is the external input of displacement and velocity level; λ is the binding force and torque; G is the jacobian matrix for the constraint equation ;Fc is dynamic state equation of the force and control unit; g is the constrained algebraic equation of constraint; b is the constraint algebraic equation related to the algebraic state quantity
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