Index Catalog // ScholarsArchive@OSU

Engineering analysis of forces created in two tree intermediate supports during multi-span logging

Creator:: Fodge, Francis W.
Abstract:: An analysis of forces on two tree intermediate supports is presented. The analysis is in two parts: The maximum force that the support jack will experience. The movement and forces created in the two tree support by the skyline and carriage. The maximum force on the support jack occurs when...
Resource Type:: Capstone Project

Model for the prediction of nail withdrawal stiffness

Creator:: Atherton, Jon C.
Abstract:: An important factor affecting the strength and ultimate load of wood structures is the strength, stiffness and durability of its joints. Therefore, the behavior of nailed joints must be given proper consideration when designing and analyzing wood structures. Presently,formulas for determining the strength of nailed joints under withdrawal loads, as...
Resource Type:: Masters Thesis
Full Text:: Testing Procedure 4.3.1 Nail-push and nail withdrawal test 4.3.2 Friction tests 4.3.3 Foundation

On the design, modeling, and testing of ocean wave energy converters

Creator:: Bosma, Bret
Abstract:: Ocean wave energy converter technology continues to advance and new developers continue to emerge, leading to the need for a general design, modeling, and testing methodology. This work presents a development of the process of taking a wave energy converter from a concept to the prototype stage. A two body...
Resource Type:: Dissertation
Full Text:: ....................................................................................................43 4 Wave Tank Testing and Model Validation

High cycle fatigue modeling and analysis for deck floor truss connection details

Creator:: DePiero, Anthony H.
Abstract:: The Oregon Department of Transportation is responsible for many steel deck truss bridges containing connection details that are fatigue prone. A typical bridge, the Winchester Bridge in Roseburg, Oregon, was analyzed to assess the loading conditions, stress levels, and fatigue life of the connection details. The analysis included linear-elastic beam...
Resource Type:: Masters Thesis
Full Text:: FEA MODEL 24 4.3 RESULTS 29 5.0 DEFLECTION AND STRESS ANALYSIS 33 5.1 CLIP ANGLE DEFLECTION

Nonlinear finite-element modeling of intercomponent connections in light-frame wood structures

Creator:: Groom, Kevin
Abstract:: Nailed connections have nonlinear load-displacement relations. Modeling these connections in an assembled structure would require a great amount of computational time because of the large number of degrees of freedom. Replacing these connections with energetically-equivalent nonlinear springs reduces the number of degrees of freedom, and leads to computational efficiency in...
Resource Type:: Masters Thesis

Design, analysis and evaluation of bridge superstructures for live loads

Creator:: Turan, O. Tugrul
Abstract:: Due to age, original design that is deficient by modern standards, inadequate maintenance, environmental conditions, and increasing loads, large numbers of bridges in United States and elsewhere are classified as deficient and in need of rehabilitation or replacement. According to a national bridge inventory established by the Federal Highway Administration,...
Resource Type:: Dissertation
Full Text:: model resistance uncertainty. The model produced bias factor and coefficient of variation for

Optimal soaring by a small autonomous glider

Creator:: Kyle, Jason A.
Abstract:: Extending the flight time of an autonomous unmanned air vehicle by soaring is considered. A suboptimal controller is developed and successful static soaring is demonstrated with a 6 degree of freedom glider model. Altitude gain rates of between ¼ and ½ m/s are achieved with this simple implementation. A hybrid...
Resource Type:: Dissertation
Full Text:: micro air glider. 8 GLIDER MATHEMATICAL MODEL The glider is modeled as a rigid body, and

Response of timber joints with metal fasteners to lateral-impact loads

Creator:: Forest Products Laboratory (U.S.) and Jordan, C. A.
Resource Type:: Technical Report
Full Text:: relationship between nail diameter raised to the 3/2 4 three-halves power (D and load, — and also between

Performance comparison of slender and standard spirally grooved pallet nails

Creator:: Forest Products Laboratory (U.S.) and Heebink, T. B. (Thomas Bruce), 1914-
Resource Type:: Technical Report
Full Text:: diameter) and slightly shorter (2-1/4 inches) hardened nail for these conditions. They claimed that the new

Spacing of sixpenny and eightpenny wire nails in Douglas-fir multi-nail joints

Creator:: Forest Products Laboratory (U.S.) and Ramos, Agustin N., Jr.
Resource Type:: Technical Report
Full Text:: before the lateral nail-resistance tests were conducted. Preparation and Testing of Specimens A total

ScholarsArchive@OSU

Engineering analysis of forces created in two tree intermediate supports during multi-span logging

Model for the prediction of nail withdrawal stiffness

On the design, modeling, and testing of ocean wave energy converters

High cycle fatigue modeling and analysis for deck floor truss connection details

Nonlinear finite-element modeling of intercomponent connections in light-frame wood structures

Design, analysis and evaluation of bridge superstructures for live loads

Optimal soaring by a small autonomous glider

Response of timber joints with metal fasteners to lateral-impact loads

Performance comparison of slender and standard spirally grooved pallet nails

Spacing of sixpenny and eightpenny wire nails in Douglas-fir multi-nail joints

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