Based On OpenStack Collaborative Design-Simulation Platform Design And Implementation

With the rapid development of China's aerospace industry,it makes the electronic systems have higher radiation resistance.So,it is very important to take the radiation-hardened design of devices and circuits at the beginning of the design system,in order to ensure their radiation resistance.In the process of radiation-hardened design,knowledge of several different disciplines will be involved,such as mechanics,physics,thermals,mechanics,electromagnetism,etc.And the design or simulation software associated with these disciplines will be used,such as ProE,MCNP,Ansys,SystemVision,Mentor,etc.At present,there are the following three problems in the process of the radiation hardened design or simulation.1.The calculation of radiation effects and the large amount of simulation operations make a stand-alone computing platform impossible to meet the requirements of increasingly large-scale simulation operations.2.There is no effective method to manage the data generated by each simulation software.3.In the traditional anti-radiation reinforcement design,the simulation of the model often requires some manual intervention.For these reasons,based on the traditional anti-radiation reinforcement design,this paper introduces the concept of "cloud computing" and builds a collaborative cloud simulation platform to solve the three problems.This paper designs a radiation-hardened digital simulation platform based on OpenStack,studies the simulation service scheduling,simulation data management,and other contents on this platform,and realizes design-simulation integration in the field of radiation-hardened design.The main tasks include the following.First,through an in-depth analysis of the relevant technical characteristics in the field of radiation hardening,an architecture of a co-simulation cloud platform is proposed.The architecture includes a cloud infrastructure service layer,a design-simulation core service layer,a platform portal,and a platform consolidated database.Computing and software resources are virtualized through the cloud infrastructure service layer,which makes cloud terminal users complete anti-radiation reinforcement design and simulation by invoking design-simulation services on the platform portal.Second,after studying the multiple flow of simulation tasks in the field of radiation hardening reinforcement,this paper introduces the concept of microservice,and microservice each atomic step in the simulation flow.By analyzing the dependencies between the various atomic steps,the simulation task workflow engine is designed and the general design method of simulation task model based on Petri nets is defined.The user can use the common design method of simulation task model to customize the simulation task.Third,after studying the actual requirements for data security and version control in the field of radiation resistance,this paper designs a rights management and version control module.Based on the traditional role-based access control model,Rights management introduces the concept of permission secret level,and implements the dense management of data.Version control enables version management and control of design-simulation software and data.The platform solves the problem that there is no effective co-design-simulation platform in the field of radiation-resistant reinforcement.Due to its dynamicity,scalability,and virtualization features,the platform can easily and efficiently manage many resources,such as computers,design-simulation software,etc.The platform also provide users with public simulation services for quick and easy access.This high-performance co-simulation platform based on virtualization technology meet the trend of multi-disciplinary cooperation in the field of radiation-reinforced research.It also has implications for other multi-disciplinary areas.