An assembly planner is a program designed to generate high-level plans for the manufacture of mechanical assemblies. At this time several experimental assembly planning systems have been developed. However each has deened the problem diierently, using diierent deenitions of an assembly plan and applying diierent restrictions to the planning process. This report surveys, analyzes and evaluates s...

Self-assembly is emerging as one of the main methods for construction of heterogeneous systems consisting of multiple component types in nanoand micro-scales. The engineered self-assembly used for system integration involves preparation of parts that can recognize and bind to each other or a template, and perfection of procedures that allow for high yield self-assembly of these parts into a sys...

Introduction Both particle packing and particle contact parameters play important roles in determining the mechanical behavior of a discrete particle assembly. One common approach to calibrate discrete element models (DEM) of rock is to hold particle packing constant while contact parameters are changed to match observed macroscopic mechanical behavior. This often leads to non-unique material c...

| Visual assembly inspection can provide a low cost, accurate, and e cient solution to the automated assembly inspection problem, which is a crucial component of any automated assembly manufacturing process. The performance of such an inspection system is heavily dependent on the placement of the camera and light source(s). This article presents new algorithms that use the CAD model of a nished...

Assembly planning attempts to arrange product assembly sequences on the basis of the input of product description, similar assembly plans and assembly constraints. Assembly planning is frequently viewed as a creative thinking process, which requires extensive assembly planning experience. Assembly product modeling with mechanical connection functions has increasingly focused on assembly sequenc...

In orthopaedic surgery, intra-operative bone machining and assembly of osseous fragments are two very important research areas. One of the most challenging applications is the treatment of malignant osseous tumors within the pelvis due to its complex tri-dimensional geometry. The conventional surgical procedure includes tumoral resection (cutting of the osseous tumor) and reconstruction by allo...

We compare the influence of different assembly sequences, process parameters and material properties on the resulting package and interposer warpage in 3D stacking configurations. To this end, extensive thermo-mechanical simulations were performed to conduct virtual design of experiments (DOEs) with variables such as substrate and molding material properties, component dimensions, process tempe...

The assembly of actin monomers into filaments and networks plays vital roles throughout eukaryotic biology, including intracellular transport, cell motility, cell division, determining cellular shape, and providing cells with mechanical strength. The regulation of actin assembly and modulation of filament mechanical properties are critical for proper actin function. It is well established that ...

Nano-electro-mechanical systems (NEMS) are pivotal to integrated systems research. The ability to integrate sensors and processors on a single wafer has the potential to create highly sensitive and complex systems that respond to changing environmental stimuli. This project focuses on the assembly, integration, and characterization of both nanowires and nanotubes used in NEMS devices. Using die...

We consider the following problem that arises in mechanical assembly planning: given an assembly, identify a subassembly that can be removed as a rigid object without disturbing the rest of the assembly. This is the assembly partitioning problem. Speciically, we consider planar assemblies of simple polygons and subassembly removal paths consisting of a single nite translation followed by a tran...