剪力墙结构模板工程施工技术优化分析

科学技术的飞速发展在建筑工程施工方面也得到了充分的体现。现代化的建筑工程施工中,各种各样的先进施工技术得到了广泛的应用。其中,剪力墙结构模板工程施工技术就以其独特的优势和高性价比赢得了施工人员的喜爱。剪力墙施工技术的广泛应用也促进了框架剪力墙结构在现代化施工中的推广,使这项技术得到极大改进和提高。本文对剪力墙结构模板工程的施工技术进行了一些总结和优化分析,希望能对相关工作人员有一定的帮助。

行进间单手肩上低手投篮动作技术分析与优化

单手肩上投篮是篮球投篮基础技术之一,也是比赛中最常用的投篮技术动作,目前作为初中篮球投篮教学中的重点和难点,也困扰着不少的一线体育教师。本研究在行进间单手肩上低手投篮易犯错误的基础上通过对其技术动作分析并提出优化训练方案,同时结合初中体育教学的实际阐述教学的方法和注意事项,不仅对初中投篮教学提供铺垫同时也为今后投篮技术的研究提供了方向。

科学大数据云分析服务的性能优化技术

随着科学技术的迅猛发展,科学数据呈现爆炸式增长,这也对大数据的存储及分析带来了极大的挑战。由于传统数组数据模型不支持当今数组模型分析且分析成本较高的原因,使得迫切需要一套低成本且能对科学大数据高效分析的服务系统。而云分析服务技术的兴起对科学大数据的研究及分析产生了革命性的意义,本文分析了当前科学大数据分析系统存在的问题并对云分析服务处理系统的优势进行了深入分析,为提升现代社会对科学大数据的分析提供参考。

调频广播覆盖的影响因素及优化技术分析

调频广播以经济实用、接收效果好、覆盖面积较广的特点在我国广泛应用,特点是城市地区,已经成为"有车一族"了解路况和时事新闻的重要信息获取途径。城市高层建筑增加和隧道增多,也给调频的全方位覆盖带来了难题,为此,本文对调频广播覆盖的影响因素和优化技术进行分析。

页岩气井重复压裂补孔优化技术分析

页岩气开采后期存在减产较快的问题,随着部分页岩气井开采进入中后期,重复压裂将成为老井新生的重要手段。页岩气井重复压裂补孔技术在我国的应用还处在初级阶段,其对扩大气井的产量有非常重要的作用。

水电站电气设备安装的安全技术分析

电能是我国的主要能源供给方式之一,在能源紧张的今天,电能生产的重要性更加凸显。电气设备是供配电的物质基础,设备的安装质量和安全是保证电力企业生存和发展的关键。文章通过对水电站电气设备安装技术要点和关键要素的分析,给出了优化建议。

试谈建筑结构设计中结构设计优化技术

随着社会的快速发展,经济水平的不断提升,城市化进程快速推进,落实建筑工程的结构化设计是工程建设的重点,既要保证建筑工程的施工质量还要将人们的需求加入工程设计中,满足社会需求。由于经济的发展导致环境问题突出,建设可持续发展的绿色经济,实现建筑工程的可持续发展是建筑工程前进的主要方向。建筑结构的良好设计能够更好的节约建筑材料,实现建筑工程的绿色环保的推进。本文主要是从建筑结构设计优化的角度开展分析,落实结构设计优化,促进工程建设的良好发展。

基于安全与工作量均衡的电网停电计划优化研究

提出了一种基于智能分析优化技术的停电计划综合优化,它通过建立专家知识规则库,结合电网拓扑关系,从设备重复停役、电网安全风险、工作量均衡、计划连锁变更四个方面分析计划的合理性,辅助编制更优化的综合生产计划。该系统在实际应用过程中取得了良好的效果。

Waveforms analysis and optimization of new electro-hydraulic excitation technology

A new electro-hydraulic exciter that consists of rotary valve and micro-displacement double-functioned hydraulic cylinder was proposed to realize different kinds of waveforms.Calculated fluid dynamics(CFD) simulation of rotary valve orifice reveals that orifice exists the two-throttle phenomenon.According to the finding,the revised flow area model was established.Vibration waveforms analysis was carried out by means of mathematic model and the related experiments were validated.Furthermore,as a new analysis indicator,saturation percentage was introduced first.The experimental results indicate that the revised flow area model is more accurate compared to the original one,and vibration waveforms can be optimized through suitable spool parameters and the revised cylinder structure.

Determination of reasonable finished state of self-anchored suspension bridges

A systematic and generic procedure for the determination of the reasonable finished state of self-anchored suspension bridges is proposed, the realization of which is mainly through adjustment of the hanger tensions. The initial hanger tensions are first obtained through an iterative analysis by combining the girder-tower-only finite element(FE) model with the analytical program for shape finding of the spatial cable system. These initial hanger tensions, together with the corresponding cable coordinates and internal forces, are then included into the FE model of the total bridge system, the nonlinear analysis of which involves the optimization technique. Calculations are repeated until the optimization algorithm converges to the most optimal hanger tensions(i.e. the desired reasonable finished bridge state). The "temperature rigid arm" is introduced to offset the unavoidable initial deformations of the girder and tower, which are due to the huge axial forces originated from the main cable. Moreover, by changing the stiffness coefficient K in the girder-tower-only FE model, the stiffness proportion of the main girder, the tower or the cable subsystem in the whole structural system could be adjusted according to the design intentions. The effectiveness of the proposed method is examined and demonstrated by one simple tutorial example and one self-anchored suspension bridge.

Optimization of tribological parameters over WC-12%Co laser alloyedpearlitic ductile iron using Taguchi based Grey relational analysis

Pearlitic ductile irons(PDIs)are used in transportation and nuclear energy industries.In heavy loading situation,the service life of PDI is affected by numerous tribo aspects.In this study,surface of the PDI is alloyed with WC-12%Co powder using a high power fibre laser.The wear properties of the base material and laser alloying samples were investigated by tribometer with various parameters,i.e.,temperature,load and sliding speed.Based on experimental test,the load has maximum percentage of contribution and followed by sliding speed and working temperature.The optimized tribological parameters by Grey relational analysis(GRA)were established and those values are closely matched with predicted values.Besides,base material and laser alloying surfaces were examined through Vickers hardness machine,scanning electron microscopy(SEM)and roughness tester.The laser altered specimen shows no defects and improves the wear properties than substrates.The identified optimal tribological parameters are load of 30 N,speed of 0.5 m/s and working temperature of 300℃,and load of 30 N,speed of 0.5 m/s and working temperature of 200℃ for base metal and laser alloying samples,respectively.

Performance analyses and optimization based on iSCSI

The overhead in iSCSI subsystems is analyzed through the model of iSCSI reading and writing requests. An analytic model of iSCSI subsystem overhead is developed. According to the analytic model, the overhead of iSCSI subsystems is measured, which reveals that the main overhead is caused by protocol processing as well as kernel functions for fair allocation of system resources. Several methods have been proposed to optimize iSCSI subsystems, such as small I/O requests adherent that can be merged into a large I/O request. Checksum is found to be a time consuming work and may not be always necessary for applications.

A polynomial smooth epsilon-support vector regression based on cubic spline interpolation

Regression analysis is often formulated as an optimization problem with squared loss functions. Facing the challenge of the selection of the proper function class with polynomial smooth techniques applied to support vector regression models, this study takes cubic spline interpolation to generate a new polynomial smooth function ｜×｜ε^ 2, in g-insensitive support vector regression. Theoretical analysis shows that Sε^2 -function is better than pε^2 -function in properties, and the approximation accuracy of the proposed smoothing function is two order higher than that of classical pε^2 -function. The experimental data shows the efficiency of the new approach.

Technological Analysis on Improvement of Hydraulic Cylinder Structure

Hydraulic equipment is widely applied in the fields of engineering construction, manufacture and mining. As the core component of hydraulic equipment, hydraulic cylinder will directly affect the whole operation of hydraulic equipment. This paper will analyze the improvement of hydraulic cylinder structure and expect to enhance its reliability and stability.

Multidimensional CAE methods for car body structure optimization

The computer aided engineering(CAE) analysis technique has become one of the most important means in modern automobile development due to its remarkably computing capability.With the development of CAE bussiness software and intensive research on automotive development process,the CAE technique,which was only used as an auxiliary validation tool in the later product development in the past,is gradually used in each stage of product development now.Furthermore,accurate and fast analysis data can be supplied effectively.Especially in current CAE application, based on some optimization technologies such as sensitivity,feature and topology,the parametric design gradually enables a CAE engineer to be free from the condition which a convention analysis usually lags behind a design,and makes it be parallel to or even anterior to the design.Under the circumstance,the CAE resources can be maximized in each project development department,thereby promoting the project progress and quality,and creating a new philosophy of 'analysis-driven design'.