Driving point impedances of thick homogeneous plates in flexure

✍ Scribed by K.J. Buhlert

• Book ID: 104154122
• Publisher: Elsevier Science
• Year: 1981
• Tongue: English
• Weight: 875 KB
• Volume: 78
• Category: Article
• ISSN: 0022-460X
• DOI: 10.1016/s0022-460x(81)80035-1

✦ Synopsis

The input admittance of a plate is derived, Mindlin's plate equation being used to take into account rotatory inertia and finite shear stiffness. It turns out that the real part of the admittance is very similar to the well-known result from Kirchhoff's plate theory; only at higher frequencies does one find differences depending on the size of the exciting area. The imaginary part of the admittance has a spring-like character; it is inversely proportional to the shear stiffness and becomes very large when the exciting area goes to zero. The calculated results are compared with measurements. The agreement is good.