\ 



L i A 



P 



-XJr 



F /F, 



F = applied load 



F B r=(3I50 lb /in)(5.6in)= 17,700 lb 

 (RATED BREAKING STRENGTH) 

 L = 15.1 in 



a = 5 6 m 



b = 3 8 in 



Figure 28. Stress-strain diagram for belt connection. 



Table 3. Summary of test conditions. 



Breakwater 



Type Beam 



Cm)' 



No. of 

 runs 



Water 



depth 



(m) 



Mooring 

 system 



Generator 



stroke 



(cm) 



Wave height 

 (cm) 



Wave period 

 (s) 



PT-1 



12.2 



101 



2.0 



MS-1 



61 



to 213 



15 to 113 



2.6 



to 8.1 



PT-1 



12.2 



92 



4.7 



MS-1 



61 



to 168 



42 to 178 



2.6 



to 8.0 



PT-1 



12.2 



62 



4.7 



MS-2 



61 



to 152 



32 to 132 



2.6 



to 8.1 



PT-1 



12.2 



37 



4.7 



MS-3 



61 



to 122 



30 to 130 



2.6 



to 8.1 



PT-2 



12.2 



40 



2.0 



MS-3 



61 



to 122 



18 to 110 



2.6 



to 8.1 



PT-2 



12.2 



36 



4.7 



MS-3 



61 



to 122 



30 to 150 



2.6 



to 8.1 



PT-DB 



25.9 



34 



2.0 



MS-3 



61 



to 122 



28 to 132 



2.6 



to 8.1 



shoreward direction by flexibly attaching the PT-2 module by use of conveyor- 

 belt loops. Data for the PT-DB configuration are listed in Appendix A. 

 The PT-1 module was tested with three different mooring systems and was, in 

 general, emphasized in the experimental program. Out of 402 runs tested, 290 

 were devoted to the PT-1 breakwater. Wave heights ranged from 0.15 to 1.78 

 meters, with wave periods ranging from 2.6 to 8.1 seconds; the wave generator 

 stroke varied from 0.61 to 2.13 meters. 



With the breakwater floating in the wave tank and attached to the mooring 

 system, test preparations were generally initiated each day by adjusting the 

 water level, calibrating the wave and force gages, and checking the stroke 



31 



