An adaptive truss structure with self-learning active vibration control system is developed. A fuzzy-neural network (FNN) controller with adaptive membership functions is presented. The experimental setup of a two-bay truss structure with active members is constructed, and the FNN controller is applied to vibration suppression of the truss. The controller first senses the output of the accelero...

Studies suggest that fluid motion in the extracellular space may be involved in the cellular mechanosensitivity at play in the bone tissue adaptation process. Previously, the authors developed a mesoscale predictive structural model of the femur using truss elements to represent trabecular bone, relying on a phenomenological strain-based bone adaptation algorithm. In order to introduce a respon...

Strut-and-tie is a system of forces' distribution in the form of "load-path" connectivity from the applied load point to the support point. Strut-and-Tie Method (STM) has been developed based on simple truss model. STM models represent the load carrying mechanism of a structural member by approximating the flow of internal forces by means of struts representing the flow of compressive stresses ...

Incorporating User Design Preferences into Multi-Objective Roof Truss Optimization. (May 2006) Breanna Michelle Weir Bailey, B.S., Texas A&M University; M.S., University of Illinois Urbana-Champaign Chair of Advisory Committee: Dr. Anne Raich Automated systems for large-span roof truss optimization provide engineers with the flexibility to consider multiple alternatives during conceptual design...

Truss was proposed to study social network data represented by graphs. A k-truss of a graph is a cohesive subgraph, in which each edge is contained in at least k − 2 triangles within the subgraph. While truss has been demonstrated as superior to model the close relationship in social networks and efficient algorithms for finding trusses have been extensively studied, very little attention has b...

In this paper we propose an approach to solve multi-objective structural design problem using basic t-norm based fuzzy optimization programming technique. Here a planer truss structural model in fuzzy environment has been developed. In this structural model formulation, the objective functions are the weight of the truss and the vertical deflection of loaded joint; the design variables are the ...

This report documents the results of a survey of current practices and technology for the evaluation and rehabilitation of historic metal truss bridges. It is intended to aid engineers in identifying solutions to typical problems found in older metal truss bridges, including inadequate strength, damage, deterioration, and inadequate height and width. This study included a literature search as w...

Abstract The Truss Topology Design (TTD) problem deals with the selection of optimal configuration for pin-jointed trusses, in particular, the optimization of the connectivity of the nodes by the members, in which volume and/or compliance are minimized. In general, it is known that such truss structures are statically determinate and not redundantly rigid, that is, if just one member is damaged...

Traditional truss design and analysis assumes pinned joints at the connections. Other design provisions recommend that the trusses be designed and analyzed as frame structures, with careful consideration of the stress, timber behavior, and joint response. A large body of knowledge has been compiled detailing truss behavior as it relates to member properties and responses. However, the modeling ...

.\II in~os t iga t ion of t h r free dynamics of nearly pcriodic disordered t r i ~ ~ i hea111s is presented. An exact wave transfer matrix nietliodo log ,~ is chosen in order t o examine t h e effects of slight disorder among the bays upon the propagation of waves and tlie t,ransmis\ion of vil)ration through t h e truss beam. It is shown tha t both free harmonic waves and nlodes of vibration t...