Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 15 of 15 for “"Joint Configuration"”.
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Design and optimisation of adhesively bonded overlap joints
… and composite materials. The most common joint configuration is the lap shear joint, which has been investigated widely and several ideas have been proposed to improve its performance. For example, the introduction of fillets at the overlap ends or tapering of the substrates can reduce the …
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Evolved neural network approximation of discontinuous vector fields in unit quaternion space (S3) for anatomical joint constraint
… of anatomically correct three-dimensional joints for the simulation of humans is a complex process, a key difficulty being the correction of invalid joint configurations to the nearest valid alternative. Personalised models based on individual joint mobility are in demand in both animation …
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Effects of imperfections on the response of composite structures with scarf joints
… structures. One such repair method is the scarf joint, an adhesive joint that allows for the original surface profile of a structure to be maintained. Studies of scarf joints have primarily considered an idealized version of the configuration, whereas there will be imperfections that arise during …
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Automated motion planning for robotic assembly of discrete architectural structures
… promising technique for assembling non-standard configurations of building components at the scale of the built environment, complementing the earlier revolution in generative digital design. However, despite the advantages of dexterity and precision, the time investment in solving the …
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Experimental and Numerical Study on Bolted/Bonded Composite Joints for Aircraft
… has advantages and disadvantages, bonded joint technology has the potential to reduce the weight and manufacturing cost of advanced aircraft structures. However, bolted joining is still generally required for certification and regulatory compliance. An alternative to these technologies is …
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Numerical-Informational methodology for characterising steel bolted components coupling finite element simulations and soft computing techniques
… last few decades, the characterisation of steel joints has been a highly active research topic thanks to its inherent complexity and utmost importance in the behaviour of a whole structure. The emergence of the semi-rigid concept provided significant benefits from both the structural and economic …
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In Vitro Manual Therapy and Biorobotic Simulation of Glenohumeral Joint Mobilization Techniques
… techniques for restoring range of motion to joints. Few studies have attempted to quantify the biomechanics of manual therapy on the glenohumeral (GH) joint. The objectives of this study were to develop an in vitro protocol to determine the biomechanical effects of joint mobilization on the …
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Influence of weld profile on fatigue crack growth in tubular welded joints
… on fatigue crack growth in tubular welded joints used in the construction of offshore platforms. An experimental strain analysis has been conducted on three multiplanar steel joints having the same overall geometry but different weld profiles and loaded in out-ofplane bending. This was used …
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Adaptation For Multi-Antenna Systems
… performance of a limited and predefined set of joint MoDem/CoDec and MIMO configurations over a representative set of channel realizations. Other work has attempted to adapt only the MIMO scheme to varying channel conditions without considering modulation format or the channel code used. …
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Investigation of Standing Up Strategies and Considerations for Gait Planning for a Novel Three-Legged Mobile Robot
… down while minimizing the motor torques at the joints and considerations for gait planning. STriDER uses a unique tripedal gait to walk with high energy efficiency and has the ability to change directions. In the first version of STriDER, the concept of passive dynamic locomotion was emphasized; …
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Development of a novel test rig for the evaluation of aircraft fuel tank sealants
… upon sealant materials to prevent leakage past joints and fasteners. However, the wing is designed as a structural member first and as a fuel tank second and there exist many potential leak paths for the fuel from these complex, highly loaded structures. Fuel leaks result in direct loss of fuel …
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Development of experimental and numerical methodologies for the investigation of composite and hybrid metal-composite fastened joints subjected to impact loads
… composite coupons, composite or hybrid fastened joints and a hybrid large-scale panel with several fasteners, is conducted under dynamic (impact) and quasi-static loading conditions with the aid of efficient experimental and numerical methodologies developed for these purposes. With respect to …
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Mobile robot navigation in dynamic environments
… that fulfill these <br>requirements. Since the joint configuration space of the robots is <br>typically huge and grows exponentially with the number of robots, <br>existing path planning methods for single robot systems cannot <br>directly be transferred to multi-robot systems. <br> <br>Many …
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Study of polymeric materials for industrial applications in the field of laser welding
L'abstract è presente nell'allegato / the abstract is in the attachment
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Tracking and modelling motion for biomechanical analysis
… the problem of determining appropriate skeletal configurations for which a virtual animated character moves to desired positions as smoothly, rapidly, and as accurately as possible. During the last decades, several methods and techniques, sophisticated or heuristic, have been presented to produce …