In the solar street light
system, the structure a is important problem, the wind resistance design.
Wind resistance design consists of two large, one for the battery components of wind resistance design, secondly, light pole of wind resistance design.
The following according to the above two respectively for analysis.
(1) the wind resistant design for solar energy battery components support according to the technical parameters of battery components manufacturer data, solar energy battery components can bear the wind pressure is 2700 pa.
If the wind resistance coefficient is selected for 27 m/s (
Typhoon is equivalent to ten levels)
, according to the non viscous fluid mechanics, the battery components of wind pressure is 365 pa.
So, the component itself is completely can withstand 27 m/s wind speed without damage.
So, the key is to consider in the design of the battery bracket of component connection with light pole.
solar street lamp
in the design of the set of street lamp system battery components stents used with light pole connection design of bolt fixed connection.
The parameters of the wind resistant design for 2 street lamp lighting lamps are as follows: A = 16 o light pole height = 5 panels Angle delta m design selection at the bottom of the lamp post weld width = = 4 mm at the bottom of the light pole diameter 168 mm weld surface where the light pole failure surface.
The light pole failure surface resistance moment W calculation point P to the light pole by panels of load action line distance for PQ = [F
5000 + (
168 + 6)
×Sin16o = 1545毫米= 1。
So, the role of wind load on the light pole failure moment M = F * 1.
According to the design of the 27 m/s * big allow wind speed, the 2 x 30 w double socket panels, of basic load of 730 n.
The safety factor of 3, F = 1.
3×730 = 949N。
So, M = F * 1.
545 = 949×1.
545 = 1466N.
According to the mathematical deduction, circular failure surface resistance moment W = PI * (
3 r2δ+ 3 rδ2 +δ3)
On the type, r is circle diameter, the delta is ring width.
Failure surface resistance moment W = PI * (
3 r2δ+ 3 rδ2 +δ3)
= 88768mm3 =88.
768 x 10-6 m3 wind load on the damage effect torque caused by the stress = = 1466 / (M/W
215 Mpa and 215 Mpa is Q235 steel bending strength.
So choose your weld width to meet design requirements, as long as the welding quality guaranteed, there is no question of solar street light pole resistance to wind.
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