Most of commercial CAD assembly modules are based on a geometric entities constraining. DOF between surfaces (or faces), axis alignments and point-to-point constraining are targeted to a final product digital mockup. The assembly components are not specifically time sequenced and ordered and the assembly simulation is targeted to improve and optimize the component interaction. The final assembl...

This paper describes an experimental very high level programming system for computer controlled mechanical assembly. AUTOPASS (AuTomated Parts Assembly System). The AUTOPASS language is oriented towards objects and assembly operations, rather than motions of mechanical assembly machines. It is intended to enable the user to concentrate on the overall assembly sequence and to program with Englis...

Objectives: Nowadays, Snap-fits are used in the automotive industry as a proper alternative for mechanical joints, cabling joints, and car interior lining joints. Due to the special form of these joints, which are assembled manually, the contact area between Snap-fits and the worker’s fingertips can be too small. This can cause skin pain on the worker’s  fingertips. Therefore, ...

This paper describes a mechanical assembly system, L A M A , that transforms high level assembly descriptions into programs for a computer controlled manipulator.

We developed and realized a mechanical integration concept of prism-grating-prism-assembly for the CO2M mission. The design mounts relies on kinematic mounting optical elements. Additional, ultra-light blackened covers stray light disturbance suppression are included. complete assembly was investigated by extensive thermo-mechanical simulations to verify stability under operational, launch load...

Protection of currency and valuable documents from counterfeit continues to be a challenge. While there are many embedded security features available for document safety, they are not immune to forgery. Fluorescence is a sensitive property, which responds to external stimuli such as solvent polarity, temperature or mechanical stress, however practical use in security applications is hampered du...

AbstructA unifying temporal logic framework is proposed for modelling, specifying, and analyzing mechanical assembly sequences. Propositional temporal logic of Manna and Pneuli is the assertion language used for representing and analyzing all constraints or conditions that assembly sequences must satisfy. The generalization of the existing representations through the proposed framework is demon...

We demonstrate for the first time a new mechanical annealing method that can significantly improve the structural quality of self-assembled nanoparticle arrays by eliminating defects at room temperature. Using in situ high-pressure small-angle X-ray scattering, we show that deformation of nanoparticle assembly in the presence of gigapascal level stress rebalances interparticle forces within nan...

The goal of this project is to performing assembly of mechanical joints based on tolerance. To obtain the proper functioning at the product the tolerance are important role. In this project the assembly of the component based on it tolerance. The required type of fit information gathered through form. This project is to reduce the time taken for assembly process while manual assembly, to improv...