【正文】 尾翼齒輪傳動(dòng)系統(tǒng) 尾翼部分主要由步進(jìn)電機(jī)提供動(dòng)力，經(jīng)過(guò)一級(jí)齒輪傳動(dòng)系統(tǒng)減速，帶動(dòng)尾翼軸旋轉(zhuǎn)，從而5 / 36控制整個(gè)尾翼的運(yùn)動(dòng)。在水平尾翼的轉(zhuǎn)動(dòng)軸處安裝角度測(cè)量?jī)x來(lái)檢測(cè)尾翼的轉(zhuǎn)角，將此信號(hào)返回并檢測(cè)判斷轉(zhuǎn)角是否達(dá)到所要求的精度，當(dāng)尾翼所轉(zhuǎn)角不足或過(guò)大時(shí)，檢測(cè)出相差的值，并根據(jù)這差值作出相應(yīng)的動(dòng)作來(lái)使轉(zhuǎn)角達(dá)到要求。正面氣流自下吹向尾翼，產(chǎn)生了一個(gè)向上的附加力，這個(gè)力的作用點(diǎn)位于飛機(jī)中心后面，因而產(chǎn)生了一個(gè)使飛機(jī)機(jī)尾上升的力矩，正是這個(gè)例句使飛機(jī)實(shí)現(xiàn)低頭，飛機(jī)向下降落。尾翼傾角誤差≦177。 普通翼肋的作用是將縱向骨架和蒙皮連成一體，把由蒙皮和桁條傳來(lái)的空氣動(dòng)力載荷傳遞給翼梁，并保持翼剖面的形狀。翼梁一般由凸緣、腹板和支柱構(gòu)成。2 / 36按照機(jī)身的功用，首先在使用方面，應(yīng)要求它具有盡可能大的空間，使它的單位體積利用率最高，以便能裝載更多的人和物資，同時(shí)連接必須安全可靠。畢業(yè)設(shè)計(jì)首先應(yīng)滿足教學(xué)與教育功能，培養(yǎng)和造就學(xué)生的創(chuàng)新能力和工程意識(shí)，通過(guò)畢業(yè)設(shè)計(jì)教學(xué)與教育功能的實(shí)現(xiàn)，促進(jìn)學(xué)生科學(xué)的智能結(jié)構(gòu)的形成；其次，畢業(yè)設(shè)計(jì)大多來(lái)源于實(shí)際，其成果可直接或間接地滿足市場(chǎng)需求，為社會(huì)服務(wù)，實(shí)現(xiàn)畢業(yè)設(shè)計(jì)的社會(huì)功能. 國(guó)內(nèi)外的研究狀況隨著現(xiàn)代航空技術(shù)的進(jìn)步，新的飛行動(dòng)力理論的應(yīng)用，飛機(jī)機(jī)身的外形也呈現(xiàn)千姿百態(tài)，變化多端，如隱身戰(zhàn)斗機(jī)所使用的機(jī)翼和機(jī)身融為一體的翼身融合體；除去機(jī)身和尾翼的飛翼；除去機(jī)翼的升力體機(jī)身；以汽車作為機(jī)身的汽車飛機(jī)等等。IV / 36MCS 51 series microcontroller mainly have three types of products, the 8051, 8751 8031. This series of products are concentrated CPU I/O port and part of the RAM as a function of controller, its main characteristic is the integration of high reliability, faster, and other products of this series, only a small increase in peripheral devices can form a plete microputer control system, and the development means is plete, the function is strong, programming instruction system, hardware material also big agility is very rich, is the ideal advocate anthology controller chip.Keywords: Elevator Flight attitude Control MCS1 / 36目 錄1. 緒論 .................................................................................................................................1 課題研究的目的和意義 ............................................................................................1 國(guó)內(nèi)外的研究狀況 ....................................................................................................1 課題任務(wù)、研究的內(nèi)容和要求 ................................................................................2 系統(tǒng)總體方案的制定 .........................................................................................2 機(jī)械結(jié)構(gòu)設(shè)計(jì) .....................................................................................................2 電氣系統(tǒng)設(shè)計(jì) .....................................................................................................32. 系統(tǒng)總體方案 .................................................................................................................3 操縱系統(tǒng) ....................................................................................................................3 信號(hào)檢測(cè)系統(tǒng) ............................................................................................................4 信號(hào)處理系統(tǒng) ............................................................................................................4 步進(jìn)電機(jī)控制系統(tǒng) ....................................................................................................4 尾翼齒輪傳動(dòng)系統(tǒng) ....................................................................................................43. 機(jī)械結(jié)構(gòu)設(shè)計(jì) .................................................................................................................5 軸的設(shè)計(jì) ....................................................................................................................5 齒輪計(jì)算 ....................................................................................................................7 選擇齒輪材料和熱處理、精度等級(jí)、齒輪齒數(shù) .............................................7 按齒跟彎曲疲勞強(qiáng)度設(shè)計(jì) .................................................................................7 軸承的選擇和計(jì)算 ..................................................................................................10 電機(jī)的選擇 ..............................................................................................................114. 控制系統(tǒng)設(shè)計(jì) ...............................................................................................................13 控制部分硬件設(shè)計(jì) ..................................................................................................13 主控制器的 CPU 的選擇 ............................................................................................14 單片機(jī)的基本性能 ...........................................................................................15 MCS51 系列單片機(jī)的引腳及功能 ..................................................................15 特殊功能寄存器 .............................................................................................17 存儲(chǔ)器結(jié)構(gòu) ..............................................................................................................17 存儲(chǔ)器擴(kuò)展電路設(shè)計(jì) ..............................................................................................18 芯片介紹 ..................................................................................................................18 ADC0809.............................................................................................................18 8051 芯片 ..........................................................................................................21 2764 芯片 ..........................................................................................................22 地址鎖存器 74LS373...............................................................................................23 MCS51 單片機(jī)應(yīng)用系統(tǒng)中的地址譯碼 ...................................................................24 I/O 口擴(kuò)展電路設(shè)計(jì) ...............................................................................................24 傳感器的選擇 ..........................................................................................................26 其它輔助電路的設(shè)計(jì) ............................................................................................272 / 36 單片機(jī)的時(shí)鐘電路 .........................................................................................27 單片機(jī)的復(fù)位電 路 ...........................................................................................275. 系統(tǒng)控制軟件 的設(shè)計(jì) ...................................................................................................28 系統(tǒng)管理程序 ...........................................................................................