myari deformadi sxeulis meqanikis ganviTarebis etapebi XX ...

aRmoCnda, rom eleqtrogadamcemi xazebis rRvevismniSvnelovan risks warmoadgens garsis da sayrdenebissartylebis SemaerTebeli kvanZebis daRliloba, ris Sedegadacsayrdenebis rxevebis Runva-grexiTi amplitudebi, zRvruliamplitudebis N ricxvi (ciklebis raodenoba) σa da σm ciklisparametrebTan mimarTebaSi ganisazRvreba gamosaxulebiT⎛ σ −1⎞N = N0⎜ ⎟ ,⎝σa+ ϕσm⎠sadac N 0 ciklTa bazuri sididea, roca2σ−1−σ0σm≥ 0 da σmax≤ [ σ den],ϕ =σϕ _ koeficienti gansazRvravs saSualo ZabvaTa gavlenas ciklTazRvrul raodenobaze rRvevamde.dazianebaTa dagrovebis siCqare konstruqciaSi SeiZlebawarmodgenil iqnes ori funqciis namravliT, romelTagan erTidamokidebulia Zabvebis sididesa da niSanze, meore ki –dazianebaTa sidideze:∂v∂v(σ ) ∂v(n)= ⋅ = f1(σ ) ⋅ f2( n),∂n∂n∂nsadac v dazianebis parametria (lodes parametri); v = 0, rocanageboba 100%-is dauzianebelia da v = 1, roca nageboba mTlianaddarRveulia. SeiZleba Caiweros, rom1∫∂ v)f ( v(nn∂n= ∫ =fm( ] ∫σ ( σ ]0 2) 0 1 0sadac n ciklTa raodenobaa saTanado σ rxevebisaTvis. TudnNdatvirTvis reJimi mravalsafexuriania, maSinK∑i=1niNi1= 1 = ∫ dv = 1;0aq nλ ciklTa raodenobaa σi ZabvebisaTvis; Ni-zRvrulciklTa raodenoba igive σi ZabvebisaTvis; K _ datvirTvisseriaTa ricxvi. saSiSi Zabvebis gaCenis kriteriumad iTvlebadaRlilobis ZabvaTa intensiurobis K d koeficienti:,0132