It is widely acknowledged that the allocation of part tolerances is a highly responsible task
due to the complex repercussions on both product quality and cost. As a consequence …

During the design and manufacturing process, the dimensional and geometric tolerances
assigned to parts will affect the required functionality through a stack-up of deviations …

The aim of tolerance analysis is to find a balance between manufacturing cost and product
geometric quality. Earlier research usually considered ideal surface-based deviation models …

The polytope-based tolerance analysis in design process uses a finite set of constraints to
represent specifications and propagates these constraints to any objective point in the …

Assembly quality of aero-engine casing plays a key role in the whole aero-engine, since it is
directly related to the final function and dynamic performance. However, during the design …

The cumulative stack-up of geometric variations in mechanical systems can be modeled
summing and intersecting sets of constraints. These constraints derive from tolerance zones …

Polytope-based tolerance analysis has shown a great potential in the Computer Aided
Tolerancing (CAT) field. Previous works have considered form defects into this model, which …

The need for assembly parts and structures where the perfect fitting is not guaranteed due to
manufacturing/assembly tolerances and/or the influence of several physical effects, ie …

Abstract Exact Constraint Design is well established in design theory to ensure a robust and
predictable system behavior. In practice, however, it is often inevitable to deviate from this …

Purpose A new deviation propagation model considering the form defects in compliant
assembly process is proposed. The purpose of this paper is to analyze the deviation …