To program a command document of numerical simulation of the crane structures as the vehicles lifting loads by the parameterized model, the internal command of ANSYS and APDL, realize the moving crane numerical simulation and get result.

用建立好的有限元參數(shù)化模型和ANSYS的內(nèi)部命令以及APDL語言編寫了小車吊載運動過程中起重機運動數(shù)值仿真的命令流文件国产毛片在线看，具體實現(xiàn)了仿真，得出結(jié)論黄片亚洲一区。

And also this paper deduced load of tower crane jib according a typical tower crane operating cycle.

通過雨流計數(shù)法統(tǒng)計了危險截面應(yīng)力—時間歷程中應(yīng)力幅和循環(huán)次數(shù)国产A片址一网，根據(jù)應(yīng)力幅和循環(huán)次數(shù)利用數(shù)理統(tǒng)計方法假定了吊臂鋼結(jié)構(gòu)在工作過程中的應(yīng)力幅分布服從對數(shù)正態(tài)分布，最后通過檢驗?zāi)阁w是否服從某種分布的

If that more than two tower crane are working, as the working specialty, notice the position of them, adopt the different level, so as to avoid the collision from jib of the tower crane, counter-jib and the building.

8.3.7 有兩臺以上塔機工作時黄色网站国产精品，要根據(jù)工作特點亚洲sanji在线，注意相互之間的位置，并采用不同標(biāo)高的方法毛片无限看，以避免塔機的起重臂美女黄色视频A毛片，平衡臂相互碰撞，以及與建筑物碰撞可以免费观看黄色视频的网站。

Main contents:(1) The paper introduces the structure form of portal crane jib system and analyses the working principle, process, parameters affection of four—bar portal crane.

具體說來人人操人人上人人看，本論文的主要內(nèi)容有：(1)綜合介紹了門座起重機臂架系統(tǒng)的結(jié)構(gòu)形式，重點分析了四連桿門座起重機的工作原理男女猛烈无遮挡免费视频网站，工作過程以及各參數(shù)對整機工作性能的影響亚洲国产精品国自产拍AV老女人。

To simplify the finite element analysis process of tower crane jib, the parameters modeling created by the rapid input to the key parameters to complete the tower crane jib analysis and calculation.

目的 利用參數(shù)化設(shè)計系統(tǒng)簡化塔式起重機臂架有限元分析過程，創(chuàng)建參數(shù)化模型欧美肏屄a片，通過對關(guān)鍵參數(shù)的輸入快速完成塔機臂架的分析計算。

In concretionaly, these theses" primary coverage has:(1)Syntheses introduce portal crane jib systemic structural style structural style, selectively analysis four-bar linkage portal crane"s working theory, working process as well as each parameter to impact whole machines performance.

具體說來久久不卡亚洲精品国产精品，本論文的主要內(nèi)容有：(1)綜合介紹了門座起重機臂架系統(tǒng)的結(jié)構(gòu)形式人人操人人摸性交精品，重點分析了四連桿門座起重機的工作原理，工作過程以及各參數(shù)對整機工作性能的影響一级A片免费视频国产对白。

Based on the modern crane design skill, this paper designs and analyses the hoisting mechanism of the high pedestal jib crane, involves armoured rope一区二区三区激情欧美亚洲日本、drum、sliding wheel日韩一级精品在线视频、electric motorWWW囯产播放、reducing device and arresting gear.

本文以先進的起重機設(shè)計技術(shù)為基礎(chǔ)，對門座式起重機起升機構(gòu)的鋼絲繩日韩在线国内自拍视频网站、卷筒国自产拍精品自拍、滑輪、電動機、減速器黄色在线三区、制動器等進行了設(shè)計分析日本羞羞网站。

Combined with the project general situation,it introduces the whole setting of portal jib crane ,represents the construction process and methods of using portal jib crane batch by batch,consolidation large-tonnage steel box girder,steel girder spanning by using drag put up girder,so to increase the construction progress and construction quality.

結(jié)合工程概況，對龍門桁吊的總體布置情況進行了介紹国产精品女人被喂j8，闡述了利用龍門吊分節(jié)段吊裝在线免费观看你懂的、拼裝大噸位鋼箱梁，用拖拉架梁進行鋼梁架設(shè)的施工步驟與方法久久精品国产亚AV香蕉，從而提高了施工進度和施工質(zhì)量日韩免费一级一欧美一级毛。

Feeder loadingbridge is to improve from a crane, so the overall table withreference to the principle of a crane to carry out the design Thistime designs me mainly to aim at this machinery the king post andthe car actuates the system to carry on the design.

橋式裝卸料機是由起重機改進而來的，因此總體上來是參照起重機的原理來進行設(shè)計久久精品无码一区二区国产盗。本次設(shè)計我主要針對該機械的主梁和小車驅(qū)動系統(tǒng)進行設(shè)計欧美性爱性交一区。

After the fatigue curve with 50% reliability and a few fatigue test results of a crane element have been known, the method, namely JFKC method, in this paper can be used to get the fatigue limiting stress distribution of this crane element quickly, based on the Miner Hypothesis and.

本文在已知某種起重機零件可靠度為50%的疲勞曲線并有了該種零件的少量試件的疫勞試驗結(jié)果的條件下，以作者提出的修正的曼耐爾假設(shè)和拋物線假設(shè)為基礎(chǔ)一区二区三区无码日韩久久，提出了起重機零件疲勞極限應(yīng)力分布的快速測定法——JFKC*法91超碰日韩精品国产。