Determination of Optimal Drop Height in Free-Fall Shock Test Using Regression Analysis and Back-Propagation Neural Network

Table 1

Training data sets by free-fall shock machine.

Set	(cm)
	10	20	40	60	80	100	120
Case  1 plastic programmer
Gpk (g)	54.08	95.51	165.71	233.61	291.395	334.19	383.3
	0.1	0.1	0.1	0.1	0.1	0.1	0.1
Case  2 three pieces of elastomer
Gpk (g)	—	82.41	190.03	324.22	463.55	613.73	794.82
	—	0.3	0.3	0.3	0.3	0.3	0.3
Case  3 two pieces of elastomer
Gpk (g)	59.21	134.2	306.63	449.72	632.13	811.05	—
	0.45	0.45	0.45	0.45	0.45	0.45	—
Case  4 one piece of elastomer
Gpk (g)	82.82	199.28	443.36	647.99	862.61	—	—
	0.9	0.9	0.9	0.9	0.9	—	—