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a) Use the model above, determine the resonant frequency of a rectangular plug-in epoxy fiberglass PCB simply supported (or hinged) on all four sides, 9.0 in length, 7 in width, 0.080 in thick, with a total weight of 1.2 pounds, as shown in figure. 7.0 -9.0- Supported 091 000 40 pin DIP 1000 00 Connector (supported) For epoxy fiberglass, E = 2 x 106 lb/in², µ = 0.12. -0.080 Plug-in PCB

a) Use the model above, determine the resonant frequency of a rectangular plug-in epoxy fiberglass PCB simply supported (or hinged) on all four sides, 9.0 in length, 7 in width, 0.080 in thick, with a total weight of 1.2 pounds, as shown in figure. 7.0 -9.0- Supported 091 000 40 pin DIP 1000 00 Connector (supported) For epoxy fiberglass, E = 2 x 106 lb/in², µ = 0.12. -0.080 Plug-in PCB

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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The natural frequency of a simply supported PCB can be evaluated with (+) b fu • Where: • • TD 1 1 21 D= Eh³ 12(1-μ²) p=. gab Expected PCB resonant frequency flexural stiffness in (mass per unit are) E = modulus of elasticity, Ib/in² h = thickness of PCB, in • μ = Poisson's ratio, dimensionless W = Weight of assembly, Ib • g = 386 in/sec², acceleration of gravity ● a = PCB length, in • b = PCB width, in
Transcribed Image Text:The natural frequency of a simply supported PCB can be evaluated with (+) b fu • Where: • • TD 1 1 21 D= Eh³ 12(1-μ²) p=. gab Expected PCB resonant frequency flexural stiffness in (mass per unit are) E = modulus of elasticity, Ib/in² h = thickness of PCB, in • μ = Poisson's ratio, dimensionless W = Weight of assembly, Ib • g = 386 in/sec², acceleration of gravity ● a = PCB length, in • b = PCB width, in
a) Use the model above, determine the resonant frequency of a rectangular plug-in epoxy fiberglass PCB simply supported (or hinged) on all four sides, 9.0 in length, 7 in width, 0.080 in thick, with a total weight of 1.2 pounds, as shown in figure. 7.0 -9.0- Supported 000 000 0000000 40 pin DIP Connector (supported) For epoxy fiberglass, E = 2 x 106 lb/in², μ = 0.12. -0.080 Plug-in PCB
Transcribed Image Text:a) Use the model above, determine the resonant frequency of a rectangular plug-in epoxy fiberglass PCB simply supported (or hinged) on all four sides, 9.0 in length, 7 in width, 0.080 in thick, with a total weight of 1.2 pounds, as shown in figure. 7.0 -9.0- Supported 000 000 0000000 40 pin DIP Connector (supported) For epoxy fiberglass, E = 2 x 106 lb/in², μ = 0.12. -0.080 Plug-in PCB
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