the gage axis. By using matched gages, and by connecting all four gages 

 in a bridge circuit, cancellation of the bending strain and temperature 

 drift was obtained. 



Figure 6-16. Geometry of a wave force balance (Carr, 1954a). 



e. Analysis and Interpretation of Results . It is important that the 

 analysis and interpretation of test results are carried out concurrently 

 during the test program. This procedure allows the changing of test con- 

 ditions and the general thrust of the program as may be indicated by the 

 results of tests as they are performed. The field design engineer should 

 be kept informed of the test results during the tests so that necessary 

 revisions in structure design can be made and tested. In this way the 

 number of tests to obtain the best overall design can be reduced to a min- 

 imum. The required coordination between the field design engineer and the 

 laboratory engineer can be accomplished by telephone, conferences, and 

 those data included in progress reports. The end product of all model 

 studies is a report that presents the test data and the analysis and in- 

 terpretation of the test results. Thus, preparation of the testing pro- 

 gram, conduct of the tests, and the analysis of test results should be 

 done based on the requirements of a good technical report (Smart, 1967). 



The use of dimensional analysis in the design of hydraulic models and 

 in the preparation of testing programs was discussed in Section 11,2 and 

 Section VI, 2. Dimensional analysis is also useful in the correlation. 



366 



