life formula 中文意思是什麼
life formula
解釋
壽命計算公式-
The results indicated that the dimension, shape and purity of base material could meet the functional demand of solid lubricant ; the thermal decomposition temperature of ptfe resin exceeds 400 c, but organic and inorganic packing filler added in ptfe made the water absorption rate of composite material increased, melting temperature and decomposition temperature decreased, in the meanwhile oxidative decomposition reaction was accompanied ; polar groups such as c = o, c - o - c and so on in the carbon fiber surface is advantageous to increase compatibility with other components and interlayer shearing strength ; uniform design experimental method could help to find the relationship between formula and frictional property by relatively small tests. the developing trend of each formula ' s friction coefficient could be showed by fitting curve ; the friction coefficient with no copper powder or graphite in formula was relatively big. this fact showed that copper powder and graphite should be used cooperatively ; it was found that when the ratio of copper powder to graphite by weight is 15 : 60, 30 : 30 - 40 and 60 : 15 - 30 respectively, the friction coefficient was relatively small. the degree of crystallinity of pure ptfe reached maximum by air cooling and the abrasion loss also reached maximum among three ones ; at the same time, the abrasion loss of solid lubricant sample was also the biggest among three ones ; when solid lubricant matched with 45 # steel axle or gcrl5 steel axle, lubricant transfer film could be formed on metal surface, thus direct contact between the surface of metal friction pair rings was reduced. their working life was elongated extremely ; there was mainly much graphite, a little ptff, moo3, feso4, cus and so on in lubricant transfer film
試驗結果表明：所選原料的尺寸、形狀及純度可滿足固體潤滑劑的性能要求；聚四氟乙烯樹脂熱分解溫度超過400 ，但在ptfe中加入無機填料會使復合材料吸水率提高，熔融溫度及分解溫度降低，且伴有氧化分解反應；碳纖維表面含有c = o及c - o - c等極性基團，有利於提高其與其它組分的相容性，提高層間剪切強度；均勻設計試驗方法能夠用較少的試驗次數找出配方與摩擦性能間的關系，擬合曲線基本能表示各配方的摩擦系數發展趨勢；配方中不加銅粉或不加石墨，其摩擦系數均較高，說明銅粉和石墨應該配合使用；當銅粉15份、石墨60份時，銅粉30份、石墨30 - 40份時，銅粉60 、石墨15 - 30份時，摩擦系數均具有較低值；純聚四氟乙烯樹脂在空氣冷卻時結晶度最大，磨損量也是三者中最大的；同時，固體潤滑劑試樣在空氣冷卻時的磨損量也是三者中最大的：不論是固體潤滑劑與45 #鋼軸配副或是固體潤滑劑鑲嵌入銅套后與gcr15鋼軸配副，在金屬表面均可形成潤滑轉移膜，從而減少金屬摩擦副表面間的直接接觸，大大延長其使用壽命;轉移膜中主要含有較多的石墨、少量聚四氟乙烯、 moo 。 -
Based on modified arrhenius formula, an integral method and a two - step regression method for storage life prediction of solid propellant are presented
摘要在修正的阿倫尼斯公式基礎上，提出固體推進劑貯存壽命的整體預測方法和兩步回歸預測方法。 -
Because modified arrhenius formula considers the effect of temperature variation to activation energy, by the proposed methods, propellant storage life can be predicted more accurately, compared with arrhenius method which considers activation energy as a constant
由於修正的阿倫尼斯公式考慮了溫度變化對活化能的影響，所以與將活化能看成常數的阿倫尼斯方法相比，文中方法可以更準確地預測固體推進劑的貯存壽命。 -
Deflection is one of the most important performances of flexibility road. because of complexity of flexible road construction, road design life based on experiential formula or theoretical formula of current deflection computing theory has errors from reality, especially it does not reflect influence of dynamic tire load
彎沉是柔性路面的主要設計指標，但由於柔性路面結構復雜，使得採用現有彎沉計算的經驗公式和理論公式設計出的路面壽命與實際使用情況有較大出入，尤其反映不了動載對設計的影響。 -
The opening stress and the life of crack growth is calculated and compared with the test results and the experience formula. the feasibility of the newman theory of opening stress used in the high strength steel is validated. then through the slice synthesis method, the three dimension surface crack of the weld joint of cone - cylinder is decomposed into many plane through cracks
本文將基於裂紋閉合現象建立的帶狀屈服模型，用在平面貫穿裂紋中，計算此時的裂紋張開應力和疲勞裂紋擴展壽命，與試驗結果和經驗公式比較，驗證newman裂紋張開應力理論在高強鋼中的可行性；然後，用切片合成法，把潛艇結構凸錐柱結合殼焊縫處的三維表面裂紋分解成平面貫穿裂紋，用帶狀屈服模型的理論來分析平面貫穿裂紋，得到裂紋沿深度方向的擴展速率，進而得到潛艇結構的疲勞壽命。 -
The conclusions and the fit equations were got. 3 - d braiding composite ' s life span is predicted by extrapolating its creep behavior based on the combination of testing data and theory formula
在實驗數據和理論公式相結合的基礎上，對三維編織復合材料蠕變行為進行外推，預測了三維編織復合材料的長期使用壽命。 -
The larson - miller method and the superheater wall temperature computation model brought forward by soviet criterion are adopted to calculate the life loss caused by creep. and a simplification formula is put forward to apply in the on - line life inspection system
本文採用拉森米勒參數法，結合前蘇聯1973年熱力計算標準中的過熱器壁溫計算模型，對前期蠕變壽命損耗進行了計算；並提出簡化方法，用於在線壽命監測系統中。 -
The stress analysis and the fatigue life loss calculation of steam drum are carried out in this article. a simplification formula is proponed to calculate the main stress and is used in configuration of dcs. the rain - flow method is used to count the fatigue cycle, which can satisfy the need of on - line monitoring
本文對其進行了應力分析和疲勞壽命損耗的計算，並提出主應力計算的簡化公式用於dcs組態，採用雨流法作為在線計算的疲勞計數方法，滿足了壽命損耗在線監測的要求。 -
By an example, each parameters are randomized in the paris formula, and the propagation life of fatigue of the structure is prognosticated on the presented reliability
通過算例，將疲勞裂紋擴展速率公式中的各個參量全部隨機化，並預測構件在給定可靠度下的疲勞裂紋擴展壽命。 -
Predicting method and formula for determining calendar repaired period and total calendar life of aircraft
飛機日歷翻修期與總日歷壽命確定方法和預計公式 -
In the research of flooding arithmetic, at first, we analyse the flooding efficient, robustness by the 3 - neighbor, 4 - neighbor and 6 - neighbor ’ s wsn. so we extend to the n - neighbor ’ s wsn. we give the formula about area of wsn ’ s deploy, count of wsn ’ s node, max distance of communications and average of neighbor ’ s count, and validate this formula by the simulate program. in the last, we analyse the flooding arithmetic ’ s lose rate, data efficient rate, energy efficient rate, network life, delay time by the simulate program
在洪泛演算法研究中，首先針對3 -鄰點、 4 -鄰點和6 -鄰點的無線傳感器網路分析了洪泛效率、網路健壯性，然後推廣到n -鄰點的無線傳感器網路中，並給出無線傳感器網路部署面積、節點個數、最大傳輸距離、和平均鄰點數之間的經驗公式，並用模擬程序進行了驗證。 -
This formula blends soothing water lily and strengthening vitamin e to revive your spirit and add shine and life to your hair
這個配方將撫慰的荷花和加強的維生素e混合起來，可以重振你的精神並能給你的頭發增加光亮。 -
( 3 ) considering the effect of balls and the radial clearance, the formula that calculates the fatigue life of ball bearings is modified
（ 3 ）考慮滾珠和徑向游隙等因素的影響，對滾動軸承疲勞壽命的計算公式進行了修正。 -
The time - variation reliability formula of the existing bridge in its life cycle is deduced based on markov process
基於馬爾可夫過程得到體現在用橋梁生命周期內承載力可靠度時變規律的計算公式。
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