7. E modeling

7.1. Characteristics of modeling

3 DMEC3TR7H cases

7.2. Characteristics of the mesh

Number of knots: 925

Number of meshes and types: 294 TRIA7

7.3. Tested sizes and results

(Frequencies in hertz)

Fashion ID	Reference	Aster	% difference
	237.25	237.25 237.25	—0.001 —0.001
2
3	282.85	not obtained []
4	305.24	305.20 305.22 305.22	—0.011 —0.008 —0.005
5	324.17	not obtained []
6	346.76	346.32 346.43 346.43 346.46 346.58	—0.126 —0.095 —0.086 —0.051
7	376.68	not obtained []
8	416.00	413.91 414.33 414.33 414.36 414.36 414.99 415.14	—0.502 —0.402 —0.402 —0.394 —0.394 —0.241 —0.206
9	465.75	not obtained []
10	526.20	521.02 521.43 522.32 523.03 523.77	—1.176 —0.985 —0.985 —0.907 —0.907 —0.738 —0.602 —0.461

7.4. notes

Modes 3, 5, 7, 9 are not obtained because of the boundary conditions chosen for this model, with the three planes of symmetry.