Abstract: To address issues in the current modeling of aircraft virtual removal and installation processes, such as non-standardized expression, rigid procedures, and inability to meet the diverse dynamic operation needs of trainees, a process modeling method is proposed. Firstly, with the removal and installation objects as the main body, a parameterized model for virtual removal and installation processes and object attribute tags are constructed. The former is used to standardize the expression of the virtual removal and installation processes, while the latter records the object attributes and their current states. Then, an interference constraint matrix is built to express the interference constraint relationships between objects, serving as the constraint boundary for training operations. On this basis, a dynamic virtual removal and installation process model of the aircraft under interference constraints is constructed. Finally, the model is verified by taking the removal and installation of a cargo-compartment temperature-sensor of a certain type of aircraft as an example. The results show that the model has good standardization and dynamics, and can effectively reduce the workload of modeling.

Key words: parameterized model, attribute tag, interference constraint, process modeling