第四章-飛機(jī)結(jié)構(gòu)修理要求

1、生命賜給我們，我們必須奉獻(xiàn)生命，才能獲得生命。第四章飛機(jī)結(jié)構(gòu)修理要求STRUCTURAL REPAIR REQUIREMENTS一、Classifications of Repairs修理等級(jí)1、There are two classifications of repairs in this SRM:在SRM中修理分為兩個(gè)等級(jí)：(1) Repairs that have been evaluated and analyzed for damagetolerance capability and are classified as Category A, B, or C repairs.已經(jīng)過(guò)損

2、傷容限評(píng)估的修理分為A，B，C類(lèi)。(2) Repairs that have not been evaluated and analyzed for damage tolerance capability and are classified as Permanent, Interim orTime-Limited Repairs.未經(jīng)過(guò)損傷容限評(píng)估的修理分為永久，臨時(shí)或限時(shí)修理。2、The definitions of the different categories of damage tolerant repairs are as follows:(1) Category A Repai

3、r: A permanent repair for which the inspections given in the Baseline Zonal Inspection (BZI) are sufficient and no other actions are necessary.A類(lèi)修理： BZI 檢查充分并且不必進(jìn)行其它步驟的永久性修理。(2) Category B Repair: A permanent repair for which supplemental inspections are necessary at the specified threshold and repe

4、at intervals.希望是本無(wú)所謂有，無(wú)所謂無(wú)的。這正如地上的路；其實(shí)地上本沒(méi)有路，走的人多了，也便成了路。生命賜給我們，我們必須奉獻(xiàn)生命，才能獲得生命。B類(lèi)修理：在特定容限和重復(fù)周期中需要額外檢查而進(jìn)行的永久性修理。(3) Category C Repair: A time-limited repair which must be replaced or reworked within a specified time limit. Also supplementalinspections can be necessary at a specified threshold and re

5、peat interval.C類(lèi)修理：在指定時(shí)間內(nèi)必須更換或進(jìn)行的限時(shí)修理。在特定容限和重復(fù)周期中也需要額外檢查。3、The definitions of the different types of repairs that have not been evaluated and analyzed for damage tolerance are as follows:未經(jīng)過(guò)損傷容限評(píng)估的修理的定義如下：(1) Permanent Repair: A repair where no action is necessary, except the operator s normalmainte

6、nance.永久性修理：除了常規(guī)維修以外不需其他步驟的修理。(2) Interim Repair: A repair that has the necessary structural strength and could stay on the airplane indefinitely. The repair must beinspected at specified intervals and replaced if deterioration is detected or damage is found.臨時(shí)修理：該修理能達(dá)到必要的結(jié)構(gòu)強(qiáng)度，但失效時(shí)間不確定。必須在指定的周期內(nèi)檢查并且

7、在發(fā)生結(jié)構(gòu)退化和損傷時(shí)予以更換。(3) Time-Limited Repair: A repair that has the necessary structural希望是本無(wú)所謂有，無(wú)所謂無(wú)的。這正如地上的路；其實(shí)地上本沒(méi)有路，走的人多了，也便成了路。生命賜給我們，我們必須奉獻(xiàn)生命，才能獲得生命。strength but does not have sufficient durability. This repair must be replaced after a specified time, usually given as a number of flight cycles, fli

8、ght hours or a calendar time.限時(shí)修理：該修理能達(dá)到必要的結(jié)構(gòu)強(qiáng)度但沒(méi)有足夠的耐久力。必須在指定的時(shí)間（飛行次數(shù)，飛行小時(shí)或者公歷日）后予以更換。4、Process Diagram of Classifications of Repairs修理等級(jí)劃分步驟Process Diagram修理等級(jí)劃分圖表Figure 4-1二、Aerodynamic Smoothness Requirements氣動(dòng)光滑要求1、The 737 airplane requires an aerodynamically clean shape and smooth exterior for

9、 high performance. Unrepaired damage, unfilled dents or repairs which change the shape or roughen the surface will be reflected in reduced performance. Every effort should be made to maintain original希望是本無(wú)所謂有，無(wú)所謂無(wú)的。這正如地上的路；其實(shí)地上本沒(méi)有路，走的人多了，也便成了路。生命賜給我們，我們必須奉獻(xiàn)生命，才能獲得生命。contour and exterior surface smoo

10、thness.Exterior surface aerodynamic smoothness is classified in two categories: critical and noncritical.See Table I (Critical And Noncritical Areas) and See Figure 4-2 (Aerodynamic Smoothness - Critical Areas)為滿(mǎn)足其高性能， 737飛機(jī)必須有潔凈光滑的氣動(dòng)外形。任何改變飛機(jī)外形或使其表面變粗糙的未經(jīng)修理的損傷，未填補(bǔ)的凹坑都會(huì)導(dǎo)致飛機(jī)性能的下降。 在修理中，應(yīng)最大限度地保持飛機(jī)原始輪廓

11、和外表面光滑度。2、飛機(jī)外表面按氣動(dòng)光滑要求可分為關(guān)鍵區(qū)域和非關(guān)鍵區(qū)域兩類(lèi)。請(qǐng)參照 Table I（氣動(dòng)光滑關(guān)鍵和非關(guān)鍵區(qū)域）和Figure 4-2（氣動(dòng)光滑關(guān)鍵區(qū)域）Fuselage nose to the frame at fuselage station 663.75 Wing upper and lower surfaces from leading edge to rear spar centerline and aileron areasCritical AreasNacelle and pylon areasVertical stabilizer, right and left

12、surfaces, from leading edge to centerline of rear spar, and rudder. Horizontal stabilizer, upper and lower surfaces, from leading edge to centerline of rear spar, and elevator All other exterior surfaces of the airplane areNoncritical Areasconsidered as noncritical希望是本無(wú)所謂有，無(wú)所謂無(wú)的。這正如地上的路；其實(shí)地上本沒(méi)有路，走的人

13、多了，也便成了路。生命賜給我們，我們必須奉獻(xiàn)生命，才能獲得生命。Critical And Noncritical Areas氣動(dòng)光滑關(guān)鍵和非關(guān)鍵區(qū)域Table IAerodynamic Smoothness - Critical Areas氣動(dòng)光滑關(guān)鍵區(qū)域Figure 4-2三、Symmetry And Incidence Check對(duì)稱(chēng)性和安裝角檢查1、 The symmetry and Incidence check is a procedure that compares differences in measurements made on each side of the airpl

14、ane. This check procedure will aid in evaluating structural deformations that may have occurred on the airplane.對(duì)稱(chēng)性和安裝角檢查是比較飛機(jī)兩邊的相應(yīng)測(cè)量數(shù)據(jù)。目的是評(píng)希望是本無(wú)所謂有，無(wú)所謂無(wú)的。這正如地上的路；其實(shí)地上本沒(méi)有路，走的人多了，也便成了路。生命賜給我們，我們必須奉獻(xiàn)生命，才能獲得生命。估可能已經(jīng)發(fā)生的結(jié)構(gòu)變形。2、 Symmetry and incidence checks should be made if structural deformation is sus

15、pected after hard landings, severe flight maneuvers, unsatisfactory in-flight operation, or after repairs to major structural components.在下列情況下應(yīng)進(jìn)行對(duì)稱(chēng)性和安裝角檢查：重著陸后懷疑發(fā)生結(jié)構(gòu)變形，劇烈地飛行機(jī)動(dòng)，不正確地飛行操縱或者飛機(jī)主要結(jié)構(gòu)部件修理之后。3、 A symmetry check compares a series of symmetrical measurements taken on the airplane. Each measur

16、ement is taken between two selected points on the left side of the airplane and compared to a measurement that is opposite on the right side of the airplane.對(duì)稱(chēng)性檢查對(duì)比飛機(jī)左右兩邊選定點(diǎn)的一系列的測(cè)量數(shù)值。4、 An incidence check compares angles of incidence atcorresponding locations on the left and right side of the airplanewing and horizontal stabilizer.安裝角檢查檢查飛機(jī)左右機(jī)翼和水平尾翼相應(yīng)位置的安裝角度。四、Support