Optimization Design and Comprehensive Evaluation of Screw Contact of Space Battery Based on ANSYS

In order to improve the safety of the battery of satellite side mounting,and prevent the screw from producing excess due to frequent assembly and disassembly,the YS-20 material replacement and structure optimization design of the screw body are carried out under the premise of not changing the original tooling.The double⁃shear test of YS-20 bar is carried out,and the ANSYS optimization design module is used to design 7×7×6,a total of 294,calculation cases of D1,D2,T,the three important dimension parameters of screw structure.The actual bearing state of screw composite structure is accurately simulated by using asymmetric contact model.Three comprehensive evaluations are established,and the calculation examples satisfying the conditions are evaluated comprehensively.The final results are T=12.2 mm,D1=16 mm,D2=2 mm.The stress verification and contact analysis are carried out for the final scheme and the bearing state and contact state optimized screw structure are obtained.

Application of the Fuzzy Comprehensive Assessment Technique to Optimal Selection of Pipeline Design Alternative

s: Regarding the influencing factors in an optimal selection of pipeline design alternative as fuzzy variables with different weights, a fuzzy comprehensive assessment was applied to an optimal selection of the design alternative. Giving the Lanzhou-Chengdu pipeline as an example to explain the process, the result shows that this method is acceptable.

Landscape Design of Commercial Housing Based on the Comprehensive Development Model of City Complex——A Case Study on Landscape Design of Chenglong-International

With the acceleration of urbanization, city complex as an intensive urban organization form has gradually grown up in China. By consulting relevant documents of city complex, emergence background and related concepts of city complex were introduced, landscape design of Chenglong-International was analyzed to propose landscape design principles and concepts of city complex under the compound development model, landscape processing techniques of outdoor functional subareas and transitional areas were introduced to provide useful reference for the landscape design of city complex.

Landscape Planning and Design of Zhuligou Comprehensive Service Area in Lazikou Scenic Area, Gansu Province of China

By investigating Lazikou Scenic Area, consulting a great deal of theoretical materials and data of other cases, landscape planning and design techniques for Zhuligou Comprehensive Service Area were proposed, and environmental planning and design of red tourist areas explored effectively, so as to promote to the development of red tourism and traditional revolutionary education, and also the harmonious socio-economic development of old revolutionary bases.

The Comprehensive Evaluation Research of Automated Charging Station’s Lightning Protection Design in Airport

In order to inspect the good and reliability of automated charging station’s lightning protection design in airport, we set the comprehensive evaluation mathematical model of automated charging station in the airport, through the method of second order fuzzy comprehensive evaluation and evaluate the automated charging station’s lightning protection design comprehensively by using the assessment data of expert database.

Planning and Design of Urban Riverfront Spaces Based on Comprehensive River Regulation:A Case Study of Comprehensive Regulation Project of the Old Huan River in Hubei

Urban construction in China has changed from“extensional sprawl”to“connotative development”.With the accelerating urbanization and improvement of living standards,citizens have had higher and more requirements on urban waterfront spaces.Starting from the history and characteristics of comprehensive river regulation,this paper explored its multiple meanings against the new appeals of urban development.On this basis,design and planning approaches were discussed from 3 perspectives of waterfront space planning control,waterfront space design optimization,and improvement of waterfront landscape,then the planning and design strategies of urban waterfront spaces were explored by studying the comprehensive waterfront space regulation project of the Old Huan River in Hubei,so as to provide references for the comprehensive water system regulation and space planning and construction of urban waterfront spaces.

The Comprehensive and Integrating Design of Subway Visual Communication and Urban Culture

The subway has become an dominant form for public transportation in all the great metropolis. It not only saves energy and time ,but also relieves stress caused by the dense commuting. As a high-effi cient travel mode in modern city, the metro can not only relieve the ground traffi c pressure, but also represents the culture and value of the city, which is the essence of our life. Metro visual communication design of developed countries in the world is almost closely related to the origin of urban culture, then the metro culture with local specialties has been formed. Therefore, comparative research on the situation of metro visual communication design both can induce the integration and regeneration of urban metro visual communication design and urban culture of China, as well as the formation and development of the metro culture.

Towards multiple hazard resilient bridges:a methodology for modeling frequent and infrequent time-varying loads Part I,Comprehensive reliability and partial failure probabilities

The current AASHTO load and resistance factor design （LRFD） guidelines are formulated based on bridge reliability, which interprets traditional design safety factors into more rigorously deduced factors based on the theory of probability. This is a major advancement in bridge design specifications. However, LRFD is only calibrated for dead and live loads. In cases when extreme loads are significant, they need to be individually assessed. Combining regular loads with extreme loads has been a major challenge, mainly because the extreme loads are time variables and cannot be directly combined with time invariant loads to formulate the probability of structural failure. To overcome these difficulties, this paper suggests a methodology of comprehensive reliability, by introducing the concept of partial failure probability to separate the loads so that each individual load combination under a certain condition can be approximated as time invariant. Based on these conditions, the extreme loads （also referred to as multiple hazard or MH loads） can be broken down into single effects. In Part II of this paper, a further breakdown of these conditional occurrence probabilities into pure conditions is discussed by using a live truck and earthquake loads on a bridge as an example. There are three major steps in establishing load factors from MH load distributions： （1） formulate the failure probabilities; （2） normalize various load distributions; and （3） establish design limit state equations. This paper describes the formulation of the failure probabilities of single and combined loads.

Design and implementation --the comprehension of the second stage landscape engineering of the NO.1 Xiangjiang in Changsha

Successful completion of the landscape design work, the implementation on-site is very important besides the prophase design. While in the process of project implementation, what plays an important role is the relationship between persons to persons and persons to things, but not just a simple drawing on the paper. This paper summarized some aspects of project implementation of the NOd Xiangjiang in Changsha, and hopes to achieve the designer＇ s desired results when the landscaping project is completed.

A Communicative Approach to Reading Comprehension Exercise Design-A Case Study of I Have a Dream

Reading competence is one of the basic skills of language acquisition.The teaching of reading skill has been attached great importance to in College English education in China.For decades,people have made efforts to improve the classroom teaching effects through various means,one of which is that of communicative approach.This paper attempts to explore the design of reading comprehension exercise through a case study in the light of communicative theory,thus providing an alternative to the conventional reading course teaching method.

PROCESSING PARAMETER OPTIMIZATION OF FDM BASED ON ROBUST DESIGN

The influence of processing parameters on the precision of parts fabricated by fused deposition modeling （FDM） technology is studied based on a series of performed experiments. Processing parameters of FDM in terms of wire-width compensation, extrusion velocity, filing velocity, and layer thickness are chosen as the control fac- tors. Robust design analysis and multi-index fuzzy comprehensive assessment method are used to obtain the opti- mal parameters. Results show that the influencing degrees of these four factors on the precision of as-processed parts are different. The optimizations of individual parameters and their combined effects are of the same impor- tance for a high precision manufacturing.

PowerDesigner在数据库综合性实验中的应用研究

以"学生成绩管理系统"为例,进行模型设计,阐述了需求模型、业务模型、概念模型、物理模型、生成数据库脚本及测试数据的主要设计过程。

Study on the severest real ground motion for seismic design and analysis

How to select the adequate real strong earthquake ground motion for seismic analysis and design of structures is an essential problem in earthquake engineering research and practice. In the paper the concept of the severest design ground motion is proposed and a method is developed for comparing the severity of the recorded strong ground motions. By using this method the severest earthquake ground motions are selected out as seismic inputs to the structures to be designed from a database that consists of more than five thousand significant strong ground motion records collected over the world. The selected severest ground motions are very likely to be able to drive the structures to their critical response and thereby result in the highest damage potential. It is noted that for different structures with different predominant natural periods and at different sites where structures are located the severest design ground motions are usually different. Finally, two examples are illustrated to demonstrate the rationality of the concept and the reliability of the selected design motion.

Strength Design Method for Tubing Hanger of Subsea Christmas Tree Against Big Temperature Difference

The tubing hanger is an important component of the subsea Christmas tree, experiencing big temperature difference which will lead to very high thermal stresses. On the basis of API 17D/ISO 13628-4 and ASME VIII-1, and by comprehensively considering the erosion of oil and the gravity load of the tubing, a calculation model is established by regarding design pressure and thermal stress, and the method for designing the tubing hanger of the horizontal Christmas tree under big temperature difference condition is developed from the fourth strength theory. The proposed theory for strength design of the tubing hanger in big temperature difference is verified by numerical results from ABAQUS.

Design of Landscape Entertainment Facilities from the Perspective of Children＇s Cognition

Starting from the stage characteristics of children's cognitive development, the types of performance related to cognitive function and the design points involved in outdoor landscape entertainment facilities were sorted out and analyzed, and the design strategies of landscape entertainment facilities based on cognitive function were put forward in this paper, so as to make public toys more appropriate to promote children's all-round development of cognitive ability.

A Study on the Application of Cognitive Strategies in Teaching Reading Comprehension——Take the case of two class-hour as an example

The author explores and sums up the cognitive strategies related to reading comprehension; demonstrates the application of them with a teaching design to illustrate the teaching reading comprehension process to the students and motivate them.

A Study of Systematic Theory Knowledge with Creative Methods and Techniques of Creative Thinking in Art Design

The essence of objective things is expressed through a unique and novel thinking activity, thus forming a multi-dimensional solution, and obtaining more effective solutions, that is, creative thinking. It is meaningful to master its manifestation and to study the application of creative thinking in solving specific problems. In this paper, based on the premise of art design, the connotation and manifestation of creative thinking were studied and discussed, and the application of creative thinking was expounded. This paper hopes to provide some theoretical help for the practical application of creative thinking in the future development of art design.

面向综合能源协调的虚拟电厂调控平台设计与规划优化

为解决综合能源协调调度难题,文章提出了基于虚拟电厂调控平台设计和综合能源协调调度模型。通过分析虚拟电厂的基本网架结构,设计了虚拟电厂总体架构,分为资源层、平台层和应用层,并设计了网络架构和数据流架构。基于该架构建立了面向综合能源协调的虚拟电厂调度应用模型。针对模型内光伏、风力发电、电解器、燃料电池、氢气储能、电池储能,以可靠性指标作为切入点,提出了全生命周期内成本最小的目标函数。通过算例分析,验证了文章所提出的模型在可靠性和成本方面的优势。

以药物开发为中心的药学综合设计性实验课程设计

实验教学在培养药学本科生理论知识与实践能力上发挥着关键作用。在基于地方高校“双一流”建设的新形势需求下,探索以药学本科教育为核心的实验教学新方法和新观念尤为重要。药物研发是药学专业人才培养的主要目标,是综合运用药理学、药物化学、药剂学、药物分析等学科知识进行再生产的过程,大多数学生也将从事与药物研发、生产相关的职业。设计药物研发全过程的综合设计性实验,对课程的设计、实施、质控和存在的问题及解决办法进行了探讨,为培养高素质、创新型药学人才提供了参考。

飞行运行综合实验项目设计与平台构建

针对飞行技术人才培养过程中因飞行理论教学缺乏飞行训练实践场景,导致飞行理论与飞行训练脱节的问题,设计了基于实时天气数据、飞行资料、运行环境和飞机性能数据的飞行运行综合实验项目。采用前、后端分离模式开发了一套全流程飞行运行综合实验平台,创设飞行运行场景,引导学生完成飞行运行准备任务,促进飞行理论教学与飞行运行实践有机融合。该项目有效激发学生学习兴趣,达成学习目标,取得了较好的教学效果。