DLS 03: Rectangular thin plate – simply supported – eigenfrequencies

Description

Material		Modulus of elasticity	$E=210 000 N/mm^2$
		Density	$\rho=7800 kg/m^3$
		Poisson’s ratio	$\nu= 0.3$
Geometry	Cross-section	Thickness	$e = 10mm$
Geometry	Boundary conditions	Along line AB	Fixed support
Mesh		Maximum element size	$0.05m$
Mesh		Minimum element size	$0.00m$

Results

Eigen mode	Independent reference	Diamonds	Difference
1	35.63Hz	35.6Hz	-2.81%
2	68.51Hz	68.61Hz	0.15%
3	109.62Hz	110.11Hz	0.45%
4¹	123.32Hz	123.97Hz	0.53%
5¹	142.51Hz	143.42Hz	0.64%
6¹	197.32Hz	199.27Hz	0.99%

¹ The higher the modes become, the more complex the modes shapes are and the more mesh nodes are required to get aquirate results. Therefor a relative small mesh size was chosen for this example.

References

Mécaniciens, S. F. D. (1990). Guide de validation des progiciels de calcul des structures: SDLS 03: plaque rectangulaire mince simplement appuyée sur les bords

Tested in Diamonds 2024r01.

Article Attachments

.bsf

SDLS03 84 KB

Was this article helpful?

Yes No

Need Support?

Can't find the answer you're looking for? Don't worry we're here to help!

CONTACT SUPPORT

Description

Results

References

Article Attachments

Was this article helpful?

Related Articles