word版可編輯-柴油機(jī)連桿設(shè)計(jì)及連桿螺栓強(qiáng)度校核計(jì)算課程設(shè)計(jì)說(shuō)明書百精心整理doc-資料下載頁(yè)
2025-07-15 22:35本頁(yè)面
【正文】 : gh = Val(: g0 = Val(a = Val(: mt = Val(: fi = Val(: i = Val(n1 = Val(: n2 = Val(39。================================排氣過(guò)程===========================pr = Int(1000 * * po / 1000: tr = 350 / ( / Log(n * Log(10 + * (e 3 + * (fa 1: hu = 42500 39。柴油機(jī) 暫時(shí)先賦的值39。================================進(jìn)氣過(guò)程===========================39。kkk = * nn / n39。pab = (10 / kkk ^ 2paa = n ^ 2 / 520000000pac = ((e ^ 2 / ((e 1 ^ 2 39。殘余廢氣收縮系數(shù) 39。 pad = 1 paa * pab * pac * (1 / (fa ^ 239。t = 20 * (110 * n / (110 * nnt = 20 39。t 進(jìn)氣溫升 取的 20pa = * po * 10 39。進(jìn)氣壓力yy = (tt + t * pr / tr / (e * pa pr 39。 殘余廢氣系數(shù) yy39。 ta = (t + tt + yy * fa * tr * (pa / pr ^ ((n 1 / n / (1 + yy * fa 39。進(jìn)氣溫度ta = (tt + t + yy * tr / (1 + yy 39。進(jìn)氣溫度nv = tt * pa * e * (e * pa pr / (tt + t / (10 * po / (e 1 / e / pa 39。充氣系數(shù)39。===================================壓縮過(guò)程=========================39。n1 = * nn / n 39。平均壓縮多變指數(shù)pc = Int(100 * (pa * e ^ (n1 / 100 39。壓縮終點(diǎn)壓力tc = Int(10 * ta * e ^ (n1 1 / 10 39。壓縮終點(diǎn)溫度39。===============================燃燒過(guò)程===========================lo = 1 / * (gc / 12 + gh / 4 g0 / 32m1 = a * lo: m2 = a * lo + gh / 4 + g0 / 32u0 = m2 / m1u = (u0 + yy / (1 + yy 39。實(shí)際分子變更系數(shù)39。khu = 58000 * (1 a 39?；瘜W(xué)損失khu = 0cv1 = ( + * tc * 39。 If n 2400 Then 39。 熱量利用系數(shù)選取39。 qq = / 1300 * n + 39。 Else: qq = 39。End Ifqq = Val(ccc = (qq * (hu khu / m1 / (1 + yy + cv1 * tc / uaaa = ( / a + * / 10000 39。柴油機(jī)bbb = ( + / a * tz = Int((bbb + (bbb ^ 2 + 4 * aaa * ccc ^ / 2 / aaa 39。燃燒終點(diǎn)溫度39。 l8 = u * tz / tc 39。壓力升高比ylsgb = Val(p = u * tz / ylsgb / tc 39。柴油機(jī)預(yù)期膨脹比pz = Int(100 * (ylsgb * pc / 100 39。最高燃燒壓力39。=================================膨脹===========================================39。n2 = + * nn / npb = Int(100 * (pz / (e ^ n2 / 100 39。膨脹終點(diǎn)壓力tb = Int(tz / (e ^ (n2 1 39。膨脹終點(diǎn)溫度pi1 = pc / (e 1 * (ylsgb * p / (n2 1 * (1 1 / e ^ (n2 1 1 / (n1 1 * (1 1 / e ^ (n1 1pi = fi * pi1 39。平均指示壓力pm = (1 + n / 1000 * 39。機(jī)械損失壓力nm = 1 pm / pi 39。 機(jī)械效率ni = Int(10000 * * m1 * tt * pi / hu / 10 / po / nv / 10000 39。指示熱效率gi = 3600000 / hu / ni 39。指示燃油消耗率ne = nm * ni 39。有效熱效率pe = pi * nm 39。平均有效壓力ge = 3600000 / hu / ne 39。有效燃油消耗率vh = Int(10000 * * (d / 2 ^ 2 * r / 10 ^ 6 / 10000v = Int(10000 * (vh / e + vh / 10000 39。汽缸容積nne = i * v * pe * n / 1224 39。有效功率Text7( = 0 amp。 Int(10000 * ni / 10000Text7( = Int(100 * gi / 100Text7( = 0 amp。 Int(10000 * ne / 10000Text7( = Int(1000 * pe / 1000Text7( = Int(100 * ge / 100Text7( = Int(100 * nne / 100 = pr: = Int(10 * tr / 10: = 0 amp。 Int(100 * pa / 100: = Int(ta * 10 / 10 = pz: = tz: = tb: = pb = pc: = tceee:End Sub程序運(yùn)行結(jié)果圖21 195柴油機(jī)工作過(guò)程計(jì)算及PV圖顯示
醫(yī)療健康相關(guān)推薦
鄂ICP備17016276號(hào)-1