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The paper is devoted to description of features and functionalities of special software complex aimed at global simulation of junction process using efficient numerical algorithms. The paper presents the concept of developed software and its structure. Types of problems, which the complex is applicable for, are enumerated.

The paper is devoted to further extension and development of numerical approach aimed at simulation of riveting process during aircraft assembly (see [1,2,3,4]). Previous research has shown that developed methodology provides reliable results if the rigid motion of bodies being assembled is forbidden. However, some small parts in the airframe assemblies are not supported prior to the junction and can freely move as a rigid body. This fact introduces additional difficulties when solving corresponding contact problem. The paper is devoted to description and analysis of two different modeling approaches that allow taking unsupported parts into consideration when simulating airframe assembly process.

The paper is devoted to further development of numerical methods for simulation of riveting process during aircraft assembly (see [3, 4]). Algorithm modifications that increase computation accuracy, speed and complexity are given. These modifications involve the dual problem solving, incorporation of multiple calculation nets and special two stage procedure for calculation of deformations and stresses arising during assembly.

The presented paper describes the software complex developed in St. Petersburg Polytechnical University for AIRBUS aimed at simulation of aircraft assembly process. Previous version of this complex was described in [1].