By applying the difference arithmetic to solve the differential vibration model of the single-degree-of-freedom,the acceleration responses of the vibrated bevel wheel was calculated.The bevel wheel contact fault was simulated by taking it as the impulsion loading in local point.By using techniques of wavelet de-noising and demodulated resonance,gear contact character information was picked up successfully.

從齒輪的單自由度振動模型出發(fā)，運用差分算法對模型進行求解女人16A片毛片，得到斜齒輪的振動加速度響應(yīng)国产v日产v欧美v韩国视频，將齒面接觸型故障等效為在局部點突加一個沖擊載荷，對齒輪齒面接觸型故障進行了仿真偷拍区图片区综合图区第一页，利用小波降噪和共振解調(diào)技術(shù)分別對仿真的染噪振動加速度信號進行處理午夜看国产一区二区三区奸逼黄片，成功地提取了輪齒接觸故障的信息。

By analyzing the loading status of three-point drop test platform, the force model of which has been built, and determined the factors that affect the measurement precision of horizontal load of wheel, derived the computational formula of horizontal load of wheel, so, the original measurement method of horizontal load of wheel has been improved.

通過分析三點支撐落震平臺的受力狀態(tài)黄色视频www在线，建立了三點支撐落震平臺的力學模型国产高清欧美日韩，確定了影響機輪水平載荷測量精度的因素，推導(dǎo)出了機輪水平載荷的計算公式在线日韩成人电视免费观看网站，從而改進和完善了現(xiàn)有的機輪水平載荷測量方法用力插视频爽，使機輪水平載荷的測量更精確、更合理欧美一区在线h。

In order to solve the performance demands of truck, such as loading, press work in room temperature, alternation stress, It is necessary to develop the heavily-loaded truck wheel disk and study its applications quickly.

為解決載重汽車鋼制輻板式車輪對制造材料在車輛載重免费A级毛片观看网站、冷沖壓加工、反復(fù)交變應(yīng)力等性能要求国产jiuse视频，需盡快研究和開發(fā)載重汽車輪輻專用鋼板欧美性生活电影院。

When the increasing of the speed and loading of the freight train, the heat load of the wheel will certainly ...

隨著車輛的重載化和高速化，車輪的熱負荷進一步增加亚洲男女交配视频，對車輪的疲勞壽命帶來重大影響BBIXX视频。

The stress path that prevails in a pavement under wheel loading includes stress reversal causing rotation of the principal stress direction.

在車輪的荷載作用下，整個路面的應(yīng)力過程包括導(dǎo)致主應(yīng)力方向發(fā)生旋轉(zhuǎn)的應(yīng)力反向欧美激情视频综合二三区。

By the reaction force and the principle of self-loading wheel, if neglected, the set of rubber flange with the set of the actual situation is equivalent.

由作用力與反作用力原理一级毛片免费的网站，如果忽略負重輪自重，則橡膠輪緣的受載情況與實際的受載情況是等效的人人操人人摸黄色网站。

Two cylinders drive the tipping unit, loading the bars; one asynchronous motor drives chain motion mechanism, implementing the feed and back off movement of bars; bar lifting movement in the process of chamfering and blanking movement after machining are carried out by another two cylinders; one asynchronous motor rotates the bar and one cylinder swings the wheel head when grinding; the feeding of the wheel head is accomp...

它通過控制兩套汽缸驅(qū)動翻爪完成上料，一臺異步電動機驅(qū)動鏈條式多輪運動機構(gòu)完成磨削前的進料和磨削后的退料自拍日韩制服丝袜诱惑视频，兩套汽缸完成磨削倒角加工時的預(yù)料和加工完成后的落料日本美女性高潮，一臺異步電機在磨削加工時驅(qū)動棒料旋轉(zhuǎn)，一個汽缸驅(qū)動磨頭在加工時擺動爽摸碰爽视频在线，一臺步進電機驅(qū)動磨頭實現(xiàn)磨削進給亚洲毛片不卡aV在线播放一区二区，兩套汽缸驅(qū)動翻爪完成下料，而磨頭是用一臺異步電機驅(qū)動砂輪旋轉(zhuǎn)的機構(gòu)年轻国产一级黄片，并給出了控制系統(tǒng)原理圖及程序流程圖免费毛片污在线观看，解決了控制器輸入點數(shù)相對不足的技術(shù)問題国产自产一区c在线。

According to research on space between wheel and Cart rut traverse curve of single roadway, the width of strip slab was fixed. When there was horizontal loading on slab, contact state between strip slab and base course was studied, and finite element model was established. Comparing maximum principle stress among different load position on slab, it was found that the critical loading position of cement concrete strips pavement was the middle of longitudinal joint.

對車輛輪距和單車道輪跡橫向分布曲線進行分析，確定輪跡板板寬亚洲、欧美、日韩丶中文、视频；在有水平荷載作用時草国产视频，對輪跡板與基層的層間接觸狀態(tài)進行分析，建立有限元計算模型视频一区视频二区日韩欧美，對比荷載作用在輪跡板不同位置時的最大主應(yīng)力广元瓜温，最終確定水泥混凝土輪跡路面板的臨界荷位為縱縫邊緣中部。

The supporting frame of cutting platform of back-load-bearing typed corn harvester is a spatial welded structure,it will create an over loading in the front wheel shaft of tractor and cause fatigue rupture of front wheel shaft or cause the tractor to sink into the soil.

背負式玉米收獲機割臺支架是一個空間焊接結(jié)構(gòu)欧美中文一区，在使用中會產(chǎn)生拖拉機前輪軸超重日本在线一级特黄aa大片免费，造成前輪軸疲勞斷裂或是拖拉機沉陷土壤中。

By mechanical analysis of star wheel loading mechanism,the relationship between rotating speed of star wheel and its structural parameters is determined.

通過對星輪裝載機構(gòu)的力學分析超碰欧美操屄屄在线，確定星輪轉(zhuǎn)速與星輪結(jié)構(gòu)參數(shù)之間的關(guān)系开心五月天人人摸，在此基礎(chǔ)上，得出了在一定的星輪轉(zhuǎn)速條件下星輪輪齒的中心線青草娱乐视频。