Effects of axial vibrations on grooved heat pipes:

:

(heat pipe)

CPULED

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LEDLED

Evaporator SectionAdiabatic SectionCondenser Section

(Qmax)

(R)R:/WQ:WTec : ()

Gaugler(1942)Heat transfer Device

Grover(1963)Evaporation-Condensation Heat Transfer DeviceHeat Pipe

()Xie(1998)CPU

Deverall(1967)stainless steel/water

()Richardson (1970)stainless steel/water

Maziuk(2001)

()Charlton(1992)Charlton and Bowman(1994)302501000Hz

Namba(1998)

()Huber(1994)30 Hz50 Hz2g9.6%6.1%

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45

:8mm:600mm:::

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4590

()Unit:gTc=30deg CTc=20deg CTc=40deg C

f=3Hz f=4Hzf=5Hzf=6Hzf=9Hzstaticr=2.8mm0.100.180.280.410.91r=5mm0.180.320.50.72r=10mm0.360.641.01r=15mm0.540.97r=20mm0.72r=25mm0.91

f=3Hzstaticr=5mm0.18r=10mm0.36r=15mm0.54r=20mm0.72

f=3Hzstaticr=5mm0.18r=10mm0.36r=15mm0.54r=20mm0.72

()117.550.750198.4149.965.7

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()45

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()45

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45180W 0.25/W

45

Thanks for your attention

()x =rsintv=r cost = 2 f (=2/TT=1/ f) a=-r 2 sin t

v=r =2r fa=r 2= r (2f)2

*rsintr()GGG0.02~0.1GG0.1G3Hz~18Hz2.8mm5mm10mm