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.
Results
Showing 1 to 20 of 111 for “"Trusses"”.
-
Zero modes of origami-inspired trusses
… pattern and related patterns, by considering the trusses formed by the pattern. For this case, we primarily applied numerical methods. This allowed easy visualization of its modes and modification of the pattern. The Yoshimura pattern constructed from n-sided polygons was found to have 2(n - 3) …
-
Natural vibrations of beam-like trusses
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1985.
-
Framework for Concentrated Strain Deployable Trusses
… framework for the analysis of deployable trusses using the concentrated strain approach and uses it to provide key insights into the many design decisions to be made in the development of concentrated strain architectures. The framework uses Euler Column Theory to derive closed form …
-
Mobility analysis of variable geometry trusses
… strength and rigidity. Variable geometry trusses (VGTs) are a special class of parallel trusses. Literature on VGTs has covered many interesting problems, yet there has been no conscious effort to formulate a definition for a VGT. The major emphasis of this thesis is developing a set of …
-
Stock-constrained optimization of partially disassembled trusses
… components through partial disassembly of trusses into triangular components. A computational approach for quickly designing trusses with both new and recycled components is presented. The algorithm aggregates components row by row to fill a target area defined by the user, this is done by …
-
Preliminary Influence Lines for Two-Span Continuous Trusses
Made available in DSpace on 2015-05-12T17:06:17Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 0009117.PDF: 4675765 bytes, checksum: 923ec99c1b5653dc78e12ee9069243e4 (MD5) Previous issue date: 1954
-
Reliability-based analysis and design of 2D trusses
Current safety factors used in structural design do not accurately account for uncertainties in material properties and required loads. These factors usually lead to overly designed structures but can also lead to under-designed structures because they are poor estimates of uncertainty. To …
-
Spider web geometry inspires long span roof trusses
… are comparable in structural efficiency to the trusses currently used in structures. Therefore, architects and structural engineers can use building code to design irregular spider web-shaped trusses in many instances, for example, in architecturally aesthetic purposes or in reusing old …
-
Damage detection and location in large space trusses
The purpose of this study was to review the history of financing public school facilities in Virginia with primary emphasis on the period of the public schools, 1870 through 1987. An ancillary purpose of the study was to review alternative methods of financing public school capital facilities in …
-
Modular robots for making and climbing 3-D trusses
A truss climbing robot has been extensively investigated because of its wide range of promising applications such as construction and inspection of truss structures. It is designed to have degrees of freedom to move in three-dimensional truss structures. Although many degrees of freedom allow the …
-
Optimization of slender space trusses utilizing a continuum model
… optimization of slender, multi-bay, beam-like trusses with large numbers of members. An algorithm for the continuum model optimization of the truss is developed and tested against a traditional algorithm that might be used to solve the problem. Data are presented that reflect the advantages of …
-
Comparison of nonlinear finite element formulations: application to trusses
Two prominent continuum mechanics based incremental nonlinear finite element formulations are reviewed. An introduction to different material response measures suitable for nonlinear analysis, in addition to an overview of the Total and Updated Lagrangian reference frames, serve as the starting …
-
Java Applets for Analysis of Trusses, Beams and Frames
Java applets are developed to assist in the learning of basic structural analysis concepts. In order for these programs to be easily available over the Internet, they are written in the object-oriented Java programming language. The Java programs known as applets are embedded in HTML documents. The …
-
Multivariable stability robustness for control of flexible beams and trusses
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1992.
-
Form finding of structural reused material trusses with graphic statics
… a slightly higher total load path within the trusses.
-
Application of adaptive trusses to vibration isolation in flexible structures
… presents techniques for using adaptive trusses for active vibration isolation in flexible structures. Passive methods have been used almost exclusively in the past for vibration isolation, although in the more recent literature active techniques have been proposed in an attempt to …
-
Bayesian robust optimisation of buckling loads of trusses with random imperfections
Structural optimisation with linear responses is a highly active research field with broad applications. In practice, nonlinear structural behaviour and random imperfections different from the ideal design often need to be considered. Optimised lightweight structures, such as truss-based shallow …
-
Minimizing embodied carbon in multi-material structural optimization of planar trusses
In the built environment, there is a growing emphasis on sustainable, energy efficient design that reduces carbon emissions. However, until recently, most efforts have focused only on reducing operational carbon [1]. As a result, the carbon embodied in construction materials, especially in a …
Page 1 of 6