11 results on '"R.W. Thompson"'
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2. The Nature and Anatomy of Victory
- Author
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R.W. Thompson
- Subjects
Literature ,History ,business.industry ,Victory ,business - Published
- 2021
- Full Text
- View/download PDF
Catalog
3. Load attachment for honeycomb panels in racing cars
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R.W. Thompson, F.L. Matthews, and B.P. O'Rourke
- Subjects
Specific strength ,Specific modulus ,Honeycomb structure ,Materials science ,Discontinuity (geotechnical engineering) ,business.industry ,Mechanical engineering ,Boundary value problem ,Structural engineering ,Classification of discontinuities ,business ,Sandwich-structured composite ,Finite element method - Abstract
Lightweight, honeycomb core, sandwich panels form the major part of the body structure of Formula One racing cars. Key properties include high specific stiffness and specific strength, ease of fabrication, and the ability to tailor impact resistance. The engine and gearbox, which in current designs are placed at the rear of the car, are load-bearing components and must be attached to the sandwich body shell. Although techniques for introducing loads into the skins of sandwich panels, via inserts, are well established, for Grand Prix cars, where every gram of weight must be saved, efficiency is at a premium. Thus the shape of the insert is critical and the choice of the bonding adhesive and insert's material important. While it is possible to undertake preliminary design using simple methods, if a complex insert geometry is used, recourse to finite element (FE) analysis is inevitable. However, particular difficulties arise when using FE methods in these circumstances, notably the relatively small thickness of the panel skins and the discontinuity at the insert boundary. In the current paper these issues are addressed for a particular application. To assess the efficiency of load transfer, three different insert geometries are considered. The influence of element type, mesh size and boundary conditions are addressed and their influence on stress levels and discontinuities assessed. Ways of representing the honeycomb core are also considered, as is the need to involve non-linear effects, such as the shear stress-strain properties of the adhesive. The FE results are compared with experimental data obtained from testing a representative panel to which a photoelastic coating had been applied. Encouraging agreement between prediction and experiment was obtained, together with guidance as to the optimum insert shape. more...
- Published
- 1995
- Full Text
- View/download PDF
4. System Architecture Modeling for Technology Portfolio Management using ATLAS
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R.W. Thompson
- Subjects
Strategic planning ,Decision support system ,Engineering ,business.industry ,Systems engineering ,Systems architecture ,Information technology architecture ,Project portfolio management ,Technology assessment ,business ,Quality function deployment ,Technology management - Abstract
Strategic planners and technology portfolio managers have traditionally relied on consensus-based tools, such as analytical hierarchy process (AHP) and quality function deployment (QFD) in planning the funding of technology development. While useful to a certain extent, these tools are limited in their ability to fully quantify the impact of a technology choice on system mass, system reliability, project schedule, and lifecycle cost. The Advanced Technology Lifecycle Analysis System (ATLAS) aims to provide strategic planners a decision support tool for analyzing technology selections within a space exploration architecture (SEA). Using ATLAS, strategic planners can select physics-based system models from a library, configure the systems with technologies and performance parameters, and plan the deployment of a SEA. Key parameters for current and future technologies have been collected from subject-matter experts and other documented sources in the technology tool box (TTB). ATLAS can be used to compare the technical feasibility and economic viability of a set of technology choices for one SEA, and compare it against another set of technology choices or another SEA. System architecture modeling in ATLAS is a multi-step process. First, the modeler defines the system level requirements. Second, the modeler identifies technologies of interest whose impact on an SEA. Third, the system modeling team creates models of architecture elements (e.g. launch vehicles, in-space transfer vehicles, crew vehicles) if they are not already in the model library. Finally, the architecture modeler develops a script for the ATLAS tool to run, and the results for comparison are generated. more...
- Published
- 2006
- Full Text
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5. The Needs of Missouriâs Secondary Agriculture Teachers Regarding the Teaching of Agricultural Safety
- Author
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B. L. Garton and R.W. Thompson
- Subjects
Medical education ,Engineering ,business.industry ,Public Health, Environmental and Occupational Health ,Agricultural education ,Poison control ,Human factors and ergonomics ,Suicide prevention ,Occupational safety and health ,Transport engineering ,Work (electrical) ,Agriculture ,Injury prevention ,General Agricultural and Biological Sciences ,Safety, Risk, Reliability and Quality ,business - Abstract
There is not an effective, systematic approach to agricultural safety education for secondary students in the United States. To address the problem, the Teaching Agricultural Safety to Kids program at the University of Missouri-Columbia surveyed 260 secondary agriculture teachers to determine their interest in agricultural safety course work and their need for agricultural safety instructional materials in 18 subject areas. The survey revealed that 95% of the teachers agreed that “staying current with agricultural safety and health” was crucial to their teaching responsibilities. However, when asked about their interest in enrolling in a course on agricultural safety, a majority of the teachers indicated they were “not interested.” Conversely, the respondents reported an interest in obtaining updated safety and health instructional materials. Findings from this descriptive study were used to guide the development of agricultural safety instructional materials for secondary teachers, including student reference guides, teacher demonstrations, and student competency assessments. more...
- Published
- 1997
- Full Text
- View/download PDF
6. Nonlinear dynamic analysis of prismatic elements for high-temperature gas-cooled reactor cores
- Author
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R.W. Thompson, T.H. Lee, and H.D. Shatoff
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Nuclear and High Energy Physics ,Engineering ,Mathematical model ,business.industry ,Mechanical Engineering ,Mechanical engineering ,Classification of discontinuities ,Column (database) ,Coolant ,law.invention ,Core (optical fiber) ,Nonlinear system ,Planar ,Prestressed concrete ,Nuclear Energy and Engineering ,law ,General Materials Science ,Safety, Risk, Reliability and Quality ,business ,Waste Management and Disposal - Abstract
The high-temperature gas-cooled reactor (HTGR) core consists of several thousand prismatic graphite fuel elements arranged in columns within a prestressed concrete vessel. A major research and development effort was initiated in 1970 at General Atomic Company to study the dynamic response of the HTGR core arrangement to seismic excitation. This paper presents a discussion of the history and some of the results of this effort, with respect to advances made in the development of analytical methods. The computer programs developed to perform the analysis are described, along with certain techniques and the modeling required to utilize them. The purpose is to describe the nonlinear dynamic analysis techniques employed to analyze the HTGR core. Correlation of the codes is beyond the scope of the paper and will be discussed in subsequent publications. Each fuel column in the HTGR core is composed of stacked elements doweled together to ensure alignment of the coolant channels. Gaps exist between columns, allowing the elements to impact during a seismic disturbance. Analysis of this type of structure by standard structural dynamics techniques is not possible since both nonlinearities and discontinuities exist. One- and two-dimensional models of the three-dimensional core have been developed with explicit time integration methods. Various methods to treat the impact between elements are discussed. Three computer codes were developed. CRUNCH-1D models a one-dimensional horizontal strip through the core; CRUNCH-2D, a two-dimensional horizontal planar section; and MCOCO, a two-dimensional vertical planar section. The dynamic characteristics of these three representations of the full core structure are compared and the methods evaluated in the text. Plans for additional development and work to improve the techniques are also discussed. more...
- Published
- 1980
- Full Text
- View/download PDF
7. MCOCO: a computer program for seismic analysis of the HTGR core. Volume 2. Sample problem output
- Author
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R.W. Thompson
- Subjects
Core (optical fiber) ,Engineering ,Computer program ,business.industry ,Sample problem ,Real-time computing ,Interval (graph theory) ,Function (mathematics) ,business ,Boundary motion ,Algorithm ,Volume (compression) ,Seismic analysis - Abstract
Contained in this section is output for the sample problem from t = 1.0 to 1.2 seconds. It consists of one initial run (t = 1.0 to 1.03 seconds) and six restart runs (t = 1.03 to 1.06, 1.06 to 1.09, 1.09 to 1.12, 1.12 to 1.15, 1.15 to 1.18 and 1.18 to 1.2 seconds). Total output is included for only two runs (t = 1.0 to 1.03 initial run and 1.03 to 1.06 restart run). The output for the other five runs consist of only printout as a function of time. The print interval was 0.01 seconds. Also presented are plots of core and boundary motion for the sample problem. Plots are presented at t = 1.0, 1.03, 1.04, 1.05, 1.06, 1.09, 1.1, 1.11, 1.12, 1.13, 1.14, 1.15, 1.16, 1.17, 1.18, 1.19 and 1.2 seconds. more...
- Published
- 1978
- Full Text
- View/download PDF
8. Core seismic methods verification report. [HTGR]
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H.D. Shatoff, N.D. Rickard, B.E. Olsen, D. Tow, T.H. Lee, R.W. Thompson, and J.E. Rakowski
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Engineering ,Nuclear reactor core ,ComputingMethodologies_SIMULATIONANDMODELING ,Mockup ,business.industry ,Nuclear engineering ,Core (graph theory) ,Sensitivity (control systems) ,business ,Physics::Geophysics - Abstract
Information on HTGR reactor core seismic requirements is presented concerning element properties and code parameters; correlation and verification of the codes; sensitivity studies; and application to design. more...
- Published
- 1979
- Full Text
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9. MCOCO: a computer program for seismic analysis of the HTGR core. Volume I. User's and theoretical manual
- Author
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R.W. Thompson
- Subjects
Core (optical fiber) ,Engineering ,Nonlinear system ,Computer program ,Nuclear reactor core ,business.industry ,Dynamic data ,Mechanical engineering ,Structural engineering ,business ,Collision ,Column (database) ,Seismic analysis - Abstract
This report presents documentation of the MCOCO (Multiple COre COlumn) computer program. The program was generated to perform dynamic analysis on a gas-cooled reactor core, which, structurally, is not only nonlinear, but also discontinuous. The report may be used as both a theoretical and user's manual for the MCOCO code. Input for the program consists of geometric and dynamic data (mass, spring constants, etc.). Output includes dowel forces, element collision forces, spring pack forces and core support floor forces. Core and boundary motion are also provided as output and, as an option, may be utilized to generate SC-4020 or CALCOMP plots. more...
- Published
- 1978
- Full Text
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10. Core seismic methods verification report
- Author
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N.D. Rickard, B.E. Olsen, R.W. Thompson, J.E. Rakowski, T.H. Lee, H.D. Shatoff, and D. Tow
- Subjects
Core (optical fiber) ,Engineering ,Mockup ,business.industry ,Systems engineering ,business ,Reliability engineering - Published
- 1979
- Full Text
- View/download PDF
11. Synthesis of separation schemes
- Author
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R.W. Thompson and C.J. King
- Subjects
Materials science ,Chemical engineering ,business.industry ,Separation (aeronautics) ,Process engineering ,business - Published
- 1972
- Full Text
- View/download PDF
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