Mechanical assembly: architecture and geometry analyses

Lecturer(s): Didier LACOUR, Bertrand HOUX
Course ⋅ 16 hPW ⋅ 4 hStudy ⋅ 8 h


Present methods and tools for analyzing the geometric quality of assemblies. Mastering the architecture and geometry of assemblies is a major industrial objective. The geometrical quality of the parts and the architecture of the assemblies can have direct repercussions on the assembly capacity of the product, but also on the services it must provide. This course presents the modern methods of assembly simulation by integrating the geometrical defects of their components. It thus identifies the theoretical concepts on which these methods are based, in order to understand their fields of application and their limits.


Assembly, architecture, geometric specifications, ISO GPS standards, tolerancing, metrology, influencing analysis, assembly simulation, statistics


Quantification of the specifications and analysis of their influences on the assembly (sensitivities) by torsors of small displacements. Statistical Approaches, Monte Carlo. Geometric Specification Methods, Geometrical Product Specification (GPS). Algorithms used in three-dimensional metrology (numerical methods of association).

Learning Outcomes

  • Knowledge of methods and tools for analyzing the geometric quality of assemblies. Write and interpret standardized geometric specifications. Analyze influences and contributions on a concrete model. Establish and implement a three-dimensional control strategy.


Final mark = 60% Knowledge + 40% Know-how Knowledge mark = 100% final exam Know-how mark = 100% continuous assessment