l{nvironmental testing and flight clualification of the ‘1’OPEX/POSEIDON spacecraft solar panels were performed with infrared (IR) lamps and a control system that were newly designed and integrated. The basic goal was more rigorous testing of the. costly panels’ new conqJositestructure design without jeopardizing their safety, The technique greatly reduces the costs and high risks of testing fl...

Static stiffness measurement of precision bearing components by influence coefficients is complicated by the task of loading and measuring the baseline test fixture stiffness before including the bearing components. Furthermore, as the displacement of the bearing system is measured for various load conditions, the stiffness of high quality bearings may be difficult to distinguish from the test ...

Sensing for the system-wide diagnosis of dimensional faults in multi-fixture sheet metal assembly presents significant issues of complexity due to the number of levels of assembly and the number of possible faults at each level. The traditional allocation of sensing at a single measurement station is no longer sufficient to guarantee adequate fault diagnostic information for the increased parts...

A distinguishing aspect of concurrent engineering is the intensive informa ion interchange between areas that are involved with the product life cycles. Shared information structures to integ ate different software applications have become necessary to support effectively the interchange o informa ion. While much work done in product model and manufactu ing model, there is a need to make them a...

STATEMENT OF PROBLEM Unlike screw-retention type, fixture-abutment retention in Locking taper connection depends on frictional force so it has possibility of abutment to sink. PURPOSE In this study, Bicon® Implant System, one of the conical internal connection implant system, was used with applying loading force to the abutments connected to the fixture. Then the amount of sinking was measure...

When using the functional build approach to manufacturing validation during new product development, manufacturers use pre-production assemblies to evaluate whether components within an assembly may build dimensionally correct products. This approach allows some individual component characteristics to not meet their original design specifications, provided the resultant assembly meets its requi...

In support of rapid-response manufacturing, we propose a new technique for automated design and fabrication of fixture and gripper tooling for mechanical assembly. Our technique utilizes geometric computations on CAD part descriptions to derive form and force closure tooling. In addition, we invoke rapid prototyping technology to fabricate the computed tooling directly from the derived CAD desc...

Fixtures for constraining the movement of parts have been extensively investigated in robotics, since they are essential using robots automated manufacturing. This paper deals with design and optimized synthesis a special type fixtures, which we call snapping fixtures. Given polyhedral workpiece P n vertices constant genus, need to hold, fixture is semi-rigid polyhedron G, made palm several fin...

This paper presents a design of RFID reader antenna, which is equipped on a chipattaching machine producing the RFID tags. Such an antenna is constrained to read exclusively one tag only for the purpose of functional check of the whole tag when it passes the reader antenna, namely, the other neighbour tags on the same rolling band are ignored that time. A wideband microstrip antenna is designed...