计算
- 与 计算 相关的网络例句 [注:此内容来源于网络,仅供参考]
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During the calculation the results got by quintic spline kernel was the best so it was chosen as the proper kernel for the SPH simulation. By comparison of the simulation results got by SPH and finite volume method, it was proved that the buffer cells method proposed in the SPH simulation to implement the Dirichlet boundary conditions was accurate, and this is of great importance for the simulation of flows pass a pipe. At last, the SPH method was improved to simulate the liquid-solid two phase flows and the results show that this method was appropriate for the simulation of flows containing viscous fluid and macroscopic solid components. Now the two methods are both able to predict the continuum flows and rarefied flows severally, but the hybrid program still has some aspects to be improved.
首先用标准算例验证了SPH方法的理论模型和计算程序的准确性;通过比较确定选用五次样条核作为计算低雷诺数下的粘性连续流动时的核函数;采用SPH方法和有限体积法分别对同一管道流动进行了对比计算,证明了本文提出的边界缓冲区方法在实现SPH方法中的流体边界条件时的有效性,解决了SPH方法模拟管道流动时的一个关键问题;巧妙地使用SPH方法对化工分离流动中常见的固液两相流及固液耦合作用进行了模拟尝试,获得了较好的结果;在跨尺度计算方面,目前两个子程序已经能够分别模拟连续的和稀薄的二维管流问题,二者的耦合计算程序还处于调试和优化阶段,各个参数对于计算精度和计算速度的影响规律仍在探索中。
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For the ill conditioned load flow caused by the error produced in the transformation from electricity quantities to average power, direct current load flow and sensitivity vector are presented to find out the ill node, then by adjusting the load curve and generation curve in a certain principle, which is shown in detail with several flow charts, a new operation mode is reestablished to ensure the convergence of the calculation. Optimal multiplier method is proposed to work out the least square solution according to ill conditioned structural power network. The electricity quantities flow method enhances the reliability and accuracy of the calculation of the power transmission losses.
该方法可根据当前输电网中各个变电站24小时的电量记录,利用电量潮流计算对输电网总线损和各条线路损耗进行计算,使计算的精度满足降损措施分析和指标考核的要求;并且对于由负荷出力曲线转化成平均功率计算潮流时引入的误差,进而导致潮流计算不收敛的情况,采用直流潮流法,依据相角对有功功率的灵敏度向量判断出"网络异常点",并且给出了解决此种情况的方法流程图;针对结构病态的电力系统潮流计算不收敛的情况,运用非线性约束优化方法中的最优乘子法求解潮流方程的最小二乘解,从而解决了电量潮流法计算理论线损时的收敛性问题,增强了该方法的适用性。
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The results of lattice beam internal force calculated method based on double parameter groundsill model are more approach the experiment measured values because of consideration of the pass of shearing force in soil, and its calculated workloads are similar with the method of winkler elastic foundation. Besides, the thesis also discusses the moment of torque affected results on node stress situation and the correction of stress value at the bottom of cross node of lattice beam. Due to the repeat calculation of node area during internal force calculation, the stress value of the bottom of beam is lower, this may lead the calculated value unsafe, but the corrected stress value will more approach to practical situation.
对格构梁的内力计算提出基于双参数地基模型的格构梁内力计算方法,其计算结果表明,双参数地基模型上的格构梁内力由于考虑土中剪力的传递更加接近于试验实测值,其计算工作量与winkler弹性地基梁法相当,此外,文中还探讨了扭矩作用对格构梁节点受力情况的影响结果以及格构梁交叉节点底部的应力值的修正,由于内力计算过程中节点处的面积被重复计算,使得梁底应力偏小,可能导致计算结果的偏于不安全,修正后的应力值更接近于实际情况。
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The fourth chapter analysesthe differences of the resistance between the boundariescalculated by different models.It can seen from the results thatthe differences between resistances calculated by variousfunctions can ignored under unstable conditions.There areobvious differences between different resistances calculated bydifferent functions under stable conditions.However,in bothcases,error from any function to predict transpiration rate isignoble.In order to make more applicable,the Monteith modelwas fished in this chapter.
第四章分析了各种边界层阻力计算模型计算结果的差异,比较结果表明,在空气层结不稳定时,各种φm函数经验模型计算阻力的差异可忽略,而当空气层结稳定时各种φm函数经验模型所算边界层阻力有明显差异,但不论是稳定和非稳定层结下,任选一中φm函数计算模型对蒸腾速率计算结果所造成的差异可忽略,为便于应用,本章还比较和检验了Monteith模型计算结果的差异,结果表明,该模型用于蒸腾计算,其误差可忽略不计。
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High precision format, unstructured dynamic mesh with a large displacement and multi-species gas flows were computationally expensive, the problem of resourceless and inefficient of single computer appeared. Parallel arithmetic based on PC-Cluster system for the oblique detonation wave flow and the muzzle flow include high speed projectile were discussed. The results proved that the rationality of parallel arithmetic provided a new method to simulate the complex chemical reaction flows. The present code represents a validated, efficient and versatile tool developed for the simulation of hypersonic multi-species chemical non-equilibrium flows.
高精度计算格式、化学反应源项的刚性和大位移的运动边界处理都给计算和存储带来了沉重的负担,单机资源不足和计算时间长的问题凸现,利用PC机和局域网资源建立分布存储式并行计算系统,并基于非结构动网格和分区算法开发了复杂化学反应流场数值模拟的并行计算程序,对高速飞行实验弹丸诱导的斜爆轰波流场和含有大位移动边界的膛口燃气射流场进行了并行模拟,有效地缩短了计算时间,扩展了计算规模,为复杂化学反应流数值模拟研究提供了新的手段。
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The coal resource exploration engineering surveying software application has functions of text editor,basic control classic error compensation,calculations for every kind of traverse,polar coordinates,every kind of intersection point,linear triangulation chain,height traverse,survey line support point height,every kind of indoor work survey line data processing.
煤炭资源勘探工程测量软件应用具有文本编辑器、基本控制网经典平差方法、各种导线简易计算、极坐标点计算、各种交会点计算、线形锁计算、高程导线计算、测线支点高程计算、各种内业测线数据处理计算等功能。
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Design on the principle that security , economy are rational , esthetic , fix up the selection of structure and structural level of every floor, assign , turn into with PK software AutoCAD revise the part behind the structural level well; Adopt stair and floor calculating and designing a teacher to appoint by hand, and calculate the appointed floor with PKPM software, compare with the floor that calculates by hand, fetch the drawing construction drawing of the head of the two; Calculate by hand the frame which the teacher appoints loads, set up good PKPM and calculate the procedur
设计以安全、经济合理、美观为原则,进行结构选型和各楼层结构平面布置,用PK软件布置好结构平面后再转到AutoCAD上进行局部修改;采用手工计算设计老师指定的楼梯和楼板,并用PKPM软件计算指定楼板,与手工计算的楼板进行比较,取二者之长绘制成施工图;手工计算老师指定的框架荷载,建立好PKPM计算框架程序模型,用PKPM计算框架内力并输出文件结果,把PKPM计算得到结构配筋图转到AutoCAD进行局部处理;从PKPM得出的框架构件内力组合,选择三组最不利的组合作为基础设计资料,进行手工设计基础,并用AutoCAD绘制得出基础详图及配筋。
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Design on the principle that security , economy are rational , esthetic , fix up the selection of structure and structural level of every floor, assign , turn into with PK software AutoCAD revise the part behind the structural level well; Adopt stair and floor calculating and designing a teacher to appoint by hand, and calculate the appointed floor with PKPM software, compare with the floor that calculates by hand, fetch the drawing construction drawing of the head of the two; Calculate by hand the frame which the teacher appoints loads, set up good PKPM and calculate the procedure model of the frame , calculate frame internal force and output file result with PKPM , calculate , get PKPM structure mix muscle picture turn into AutoCAD carry on part punish; Build up pieces of internal force association from frame that PKPM obtain , choose three group unfavorable association design the materials as the foundation most, carry on the design basis of the craft, and draw and obtain the basic detail drawing and match the muscle with AutoCAD.
本毕业设计以指导老师发放的《港市公安局巡警支队办公楼》建筑施工图纸为原始资料,进行结构设计和施工组织设计,设计的主要依据为现行的建筑行业规范以及指导老师的指导思想。设计以安全、经济合理、美观为原则,进行结构选型和各楼层结构平面布置,用PK 软件布置好结构平面后再转到AutoCAD上进行局部修改;采用手工计算设计老师指定的楼梯和楼板,并用PKPM 软件计算指定楼板,与手工计算的楼板进行比较,取二者之长绘制成施工图;手工计算老师指定的框架荷载,建立好PKPM计算框架程序模型,用PKPM计算框架内力并输出文件结果,把PKPM计算得到结构配筋图转到AutoCAD进行局部处理;从PKPM得出的框架构件内力组合,选择三组最不利的组合作为基础设计资料,进行手工设计基础,并用AutoCAD绘制得出基础详图及配筋。
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Design on the principle that security , economy are rational , esthetic , fix up the selection of structure and structural level of every floor, assign , turn into with PK software AutoCAD revise the part behind the structural level well; Adopt stair and floor calculating and designing a teacher to appoint by hand, and calculate the appointed floor with PKPM software, compare with the floor that calculates by hand, fetch the drawing construction drawing of the head of the two; Calculate by hand the frame which the teacher appoints loads, set up good PKPM and calculate the procedure model of the frame , calculate frame internal force and output file result with PKPM , calculate , get PKPM structure mix muscle picture turn into AutoCAD carry on part punish; Build up pieces of internal force association from frame that PKPM obtain , choose three group unfavorable association design the materials as the foundation most, carry on the design basis of the craft, and draw and obtain the basic detail drawing and match the muscle with AutoCAD.
建筑毕业设计计算书74页、CAD图纸、施工组织设计全套摘要:本毕业设计以指导老师发放的《港市公安局巡警支队办公楼》建筑施工图纸为原始资料,进行结构设计和施工组织设计,设计的主要依据为现行的建筑行业规范以及指导老师的指导思想。设计以安全、经济合理、美观为原则,进行结构选型和各楼层结构平面布置,用PK 软件布置好结构平面后再转到AutoCAD上进行局部修改;采用手工计算设计老师指定的楼梯和楼板,并用PKPM 软件计算指定楼板,与手工计算的楼板进行比较,取二者之长绘制成施工图;手工计算老师指定的框架荷载,建立好PKPM计算框架程序模型,用PKPM计算框架内力并输出文件结果,把PKPM计算得到结构配筋图转到AutoCAD进行局部处理;从PKPM得出的框架构件内力组合,选择三组最不利的组合作为基础设计资料,进行手工设计基础,并用AutoCAD绘制得出基础详图及配筋。
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Design on the principle that security , economy are rational , esthetic , fix up the selection of structure and structural level of every floor, assign , turn into with PK software AutoCAD revise the part behind the structural level well; Adopt stair and floor calculating and designing a teacher to appoint by hand, and calculate the appointed floor with PKPM software, compare with the floor that calculates by hand, fetch the drawing construction drawing of the head of the two; Calculate by hand the frame which the teacher appoints loads, set up good PKPM and calculate the procedure model of the frame , calculate frame internal force and output file result with PKPM , calculate , get PKPM structure mix muscle picture turn into AutoCAD carry on part punish; Build up pieces of internal force association from frame that PKPM obtain , choose three group unfavorable association design the materials as the foundation most, carry on the design basis of the craft, and draw and obtain the basic detail drawing and match the muscle with AutoCAD.
土木工程毕业设计 6层办公楼计算书+图纸+施工设计全套)摘要:本毕业设计以指导老师发放的《港市公安局巡警支队办公楼》建筑施工图纸为原始资料,进行结构设计和施工组织设计,设计的主要依据为现行的建筑行业规范以及指导老师的指导思想。设计以安全、经济合理、美观为原则,进行结构选型和各楼层结构平面布置,用PK 软件布置好结构平面后再转到AutoCAD上进行局部修改;采用手工计算设计老师指定的楼梯和楼板,并用PKPM 软件计算指定楼板,与手工计算的楼板进行比较,取二者之长绘制成施工图;手工计算老师指定的框架荷载,建立好PKPM计算框架程序模型,用PKPM计算框架内力并输出文件结果,把PKPM计算得到结构配筋图转到AutoCAD进行局部处理;从PKPM得出的框架构件内力组合,选择三组最不利的组合作为基础设计资料,进行手工设计基础,并用AutoCAD绘制得出基础详图及配筋。
- 推荐网络例句
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Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.
在对危险的南部地区访问时,他斥责什叶派民兵领导人对中央集权的挑衅行为。
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In fact,I've got him on the satellite mobile right now.
实际上 我们已接通卫星可视电话了
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The enrich the peopling of Deng Xiaoping of century great person thought, it is the main component in system of theory of Deng Xiaoping economy, it is a when our country economy builds basic task important facet.
世纪伟人邓小平的富民思想,是邓小平经济理论体系中的重要组成部分,是我国经济建设根本任务的一个重要方面。