Week 5 Report
Steady State and Step Response
Report Contents
Title Page
Includes "UTC," "Engineering 329," Title (Steady State and Step Response for the xxx System), Your Name, Your partners' names, Date
Introduction
In the first paragraph, it tells briefly what was done and for what purpose. In the second paragraph, it tells how the report is organized.
The introduction contains a statement of the objective of the laboratory work done and a brief qualitative description of the experiment and equipment. The complete quantitative description of the experiment comes later, so the purpose of the experimental description here is to provide the introduction to the reader.
Clearly state the true objective of the work.
The introduction concludes with a paragraph that introduces the rest of the report. It literally tells the reader what is in each section that follows.
Background and Theory
Describes the engineering background of the lab, including equations, block diagram (like Figure 3-4.2 in Smith and Corripio) and schematic diagram (like Figure 1-1.2 in Smith and Corripio). Describe the system components and the connections. Describe the Input function and the Output function; include units. Describe the functions in the Laplace domain. Describe the transfer function. Every figure must be described with 3 or more sentences to point out to the reader what is in that figure.
Present the SSOC and describe it. Describe the normal operating region in terms of both input and output. Describe what the average slope of the SSOC is in the operating region. Describe the maximum and minimum slope of the SSOC in the operating region.
This section presents the physical and mathematical models that will be used to analyze the experimental data. Material should be adapted so that it is applicable to the particular experiment. One or more diagrams should be used to illustrate both the physical model and the nomenclature. Equations alone are insufficient; a physical understanding of the experiment and the method of analysis must be provided. Do not put in lengthy derivations; put these in the appendices instead. Rather, outline the development of the equations and procedures you will use to proceed from the data to the objective of the experiment.
Explain the major assumptions and restrictions underlying the derivation and provide a reference where the derivation can be found. Material included that is from literature (books or articles) must be referenced either in footnotes or in the bibliography.
Procedure
Describes what was done in the physical lab.
Present only enough information to allow a reader to understand how you conducted the experiment. Include ranges of the operating variables. Any details of procedures or modifications of procedures that you wish to discuss should be clearly delineated.
Results
Describes what you observed, the data. Includes tables and graphs. Each table and graph must be explained. It builds on the "Procedure;" the "Procedure" section must describe how all the results in this section were obtained.
The results of the experiments should be presented in the form of tables and figures. All figures and tables should contain informative titles and all quantities should be clearly labeled with their units and 95% or 99% confidence limits on the variation included. Place figures and Tables referred to in the Body of the Report. Present only the final results that are essential to the evaluation of the experiment. Presentation of too much information at this point makes it difficult to find the important results. Intermediate or supplementary results should be included in the appendices. Describe the tables and figures that you put in the appendices.
It includes results of experiments: Experimental results for step input (curves, gain, time constant & dead time for different conditions) (like Smith and Corripio, Figure 6-17). Include the various Fits, Estimates of confidence in measurements and calculated results. Variance and Student's T. Include a table which clearly presents your results. Every table and figure must be described with 3 or more sentences to point out to the reader what is in that table or figure.
Discussion
This section tells the significance of the experiment and the results. Comparison with theory. Observations about the performance of the system. This section builds on the "Results;" the "Results" section must include all the results that are discussed in this section. "No surprises"*
Be quantitative and analytical in your discussion; avoid vague and meaningless generalities. For example, generalities such as "the results of the experiment were pretty good," "results did not agree with empirical correlations," etc., provide no quantitative information. How good are the results-- 1%, 5%, etc.? These would be the consequence of a thorough analysis of the variation in the data (Students T or Standard Deviation statistics). What is the magnitude of the discrepancy between experimental and predicted values?
This section must also contain a critical evaluation of the experimental data and final results. Indicate what the results mean and compare them with data or correlations from the literature. Assess the validity of any major assumptions involved in the analysis of the experiment. Indicate the accuracy of the results, and what limits their accuracy. Finally summarize the major conclusions that can be drawn from the experiment.
Conclusions and Recommendations
Describes what principles were demonstrated by the experimental results. It builds on the "Discussion;" the "Discussion" section must prepare the reader for all conclusions that are mentioned in this section.
"No surprises"*
Summarize your experiment by briefly restating the goals of the experiment, the measurements made, and the principal results obtained. On the basis of your results, draw conclusions about their meaning and make recommendations for their use.
Appendices
Includes graphs of all data, references & other things that interrupt the "flow" of the report. Anything that is in an appendix (except "references") must be mentioned someplace in the report.
*"No surprises" means that you can not put some sentence in this section that has not been justified in an earlier section.