Table 11 SS Esso Asheville — Basic Ship-Motion Data for the Period September 1, 



1953 to April 3, 1954 











^1 







Number of Cycles Falling between Stated Limits* (Peak-tD-Peak) 





-1 



BS 



1 



sf 





15 ^ 



1 S 



— 1 



lot a Period of 30 Days at Sen 





For Sample o(2 min every Hour 



For Sample of 2 mm every Fourth Hour 



&M 





1 



ie-S 



5-^ 



CI- n 



1 •§ 

 S S 



a: 



S S 



3: Q. 



2 *^ 



3: D- 



3: a. 

 S 



C3 . 



i -a 



S 0- 



23 



d C3 



I 0- 



2R 



as? 



= O- 



= CL 













°l 



tS 





9-"- 



— s 



0^ 2 



^ S! 



,i a 



»'^ 



C3 C3 



S S 



SR 



RS 



iClS 



^s 

















C3 <=> 



Q = 



=> c= 



=. =. 



UJ 



= O 



= = 



o =. 



o =. 



<= = 



<=x = 



Heave 



A 



L 



75 



59 



79 



2,832 





339 



14 

























Accel. 

 (Amidships) 



E 

 A 

 E 



L 

 L 



L 



63 



58.2 



86 



3,030 



15.25 



5,170 



214 











57.03 



1,031 

 58,798 



130 

 7,414 



14 

 798 



3 

 171 





 





 



Heave 



A 



B 



71 



51 



72 



2,448 





1,080 



58 

























Accel, 

 (Amidships) 



E 

 A 



E 



B 

 B 

 B 



61.9 



51.7 



M 



2,792 



17.65 



19,062 



1,024 











61.89 



1,341 

 82,994 



291 

 18,010 



55 

 3,404 



12 

 743 



1 

 62 





 



Pitch 



A 



L 



75 



74 



99 



3,552 





1,819 



809 



41 





















Accel. 



E 



L 











12.16 



22,119 



9,837 



499 























A 



L 



68 



68 



100 



3,518 















1,208 



333 



33 



4 



1/4 









E 



L 





















49.12 



59,337 



16,570 



1,621 



200 



13 







Pitch 



A 



B 



69 



53 



77 



2,544 





1,410 



1,099 



56 





















Accel. 



E 

 A 

 E 



B 



B 

 B 



61.9 



51.9 



84 



3,196 



16.98 



23,941 



18,660 



951 







54.08 



949 

 60,337 



565 

 30,550 



56 

 3,028 



4 

 216 



1 

 54 





 



■ H denote* 

 P denotes 



Heav 



e Acceleration, its intensity is specified in terms of units of gravity (G's). 

 Acceleration; its intensity is specified in terms of an equivalent linear acceleration in units of gravity. This value is equal to 



Pitch 



/angular acceleralion\ , ,, , ft gravity units 



^ in, ad/sec^ > "°'"" *^" sec ' 100 ft length ' 





••The expansiorr (actor has been defined in Table 6 





Table 12 SS Esso Asheville — Distribution of Heave and Pitch 

 Accelerations for a 30-Day Period at Sea 



(Average estimated period of measured motions is 9.2 sec taken from stress oscillograms.) 



Pitch 



Heave 



Estimated Number of Cycles of Magnitudet Greater than the Indicateil Value 



(For ■ period of 30 dayn at Ma during the rough weather aeasoQ) 





Heave Acceleration 



Pitch Acceleration 



Radians 

 Sec2 



G's 



100 ft 



Units of 

 Gravity 



Average 

 L&B 



Loaded 



Ballasf 



Average 

 L SB 



Loaded 



Ballast 



0.016 



0.05 



0.05 



86,328 



• 



67,224 



• 



105,432 



65,964 



32,455 



77,741 



43,552 



94,185 



0.032 



0.10 



0.10 



15,432 



5,384 



8,426 



20,086 



22,438 



26,12' 



10,336 



18,404 



19,611 



33,848 



0.064 



0.2O 



0.15 



2,720 





1,012 





4,428 



2,566 





1,834 





3,298 



0.081 



0.25 



0.20 



619 



214 



214 



1,024 



1,024 





499 





951 





0.097 



0.30 



0.25 



31 











62 



242 





213 





270 



0.129 



0.40 



0.30 



















34 





13 





54 



0.161 



0.50 



0.35 







































0.193 



0.60 



0.40 

































0.322 



1.00 



0.60 

































•This estimat 



is based 



on oscillograms taken for a duration of 2 min 



at intervals of 1 hr. 



"Thisestimat 



is based 



on oscillograms taken for a duration of 2 rain 



at intervals of 4 hr (used for plotting). 



Ifeak-to-peak 



variation. 







32 



