33 
899 
times beginning with t = 2R/c, one has 
(8,1) alt - 2R/c) + alt-r/e) > a(t) 
where R ia the radius of the piston, r is the distance between 
any two voints on ite face, and a is the acceleration of the 
piston. Therefore 
(a2) alt - 2n/e)| a5 > [awe-eyat raw as 
(A) (A) (A) 
Again under the assumption of an infinite, immovable baffle 
equation (9.3) becomes 
(a3) eps 2p, = j 1 al#-B)as 
aT 
(Ae) 
Let py, be the correct relief pressure and let nr be the in- 
compressive approximation to it. Then by (8.2) and (8,3) 
Yee i: £ [ace -2R/c) -ace] jf = 
(R,) 
or . 
Pr ~ bel see aS a(t) as where H-aARic <T<F, 
ok (A) 
(8.4) 
+ e 
ic ease 
(Re) 
since 
4 
\\ dSidS ey RY 
(A) 
‘By (9.3) and (13.1) one has 
(Mt pRZ,) Zn tr2_ = frmds -f Fads - J Cor- Bad ds 
