Design Analysis and Optimization of Coil Spring for Three-Wheeler Vehicles Using Composite Materials

Table 10

Analytical and FEA values’ comparison for three types of coil springs.

Load (N)	Spring deflection (mm)
	Steel spring		Carbon/epoxy spring		Carbon/CNT/epoxy spring
	Analytical	FEA	Analytical	FEA	Analytical	FEA
360	3.039	3.249	32.924	38.70	31.767	31.115
720	6.077	6.499	65.848	77.41	63.534	62.231
1080	9.116	9.748	98.772	116.11	95.301	93.346
1440	12.154	12.997	131.696	154.82	127.069	124.46
1810	15.277	16.336	165.534	194.60	159.718	156.44
2160	18.232	19.495	197.544	232.23	190.603	186.69
2520	21.270	22.745	230.467	270.93	222.370	217.81
2880	24.309	25.994	263.391	309.63	254.137	248.92
3240	27.347	29.234	296.315	348.34	285.904	280.04
3600	30.386	32.492	329.239	387.04	317.671	311.15