排序方式: 共有44条查询结果,搜索用时 15 毫秒
1.
基于粒子系统和音频系统的烟花模拟 总被引:2,自引:1,他引:1
针对模糊物体的模拟方法存在着粒子数量绘制巨大、粒子运动状态复杂、计算耗时、实时性及逼真性不够等问题,提出了一种基于粒子系统和音频系统的烟花模拟方法,以三角形格作为绘制烟花粒子的基本图元,结合纹理映射,色彩融合技术来绘制烟花粒子,在显示列表中生成纹理,再结合FMOD引擎技术,加入音频系统,实验结果表明提出的方法增强了模拟的逼真性. 相似文献
2.
Analysis of the structural failure of a bridge caused by an accidental fireworks explosion is presented in this paper. The equivalent mass of TNT due to the fireworks explosion and the structural response of the bridge due to the dynamic load imposed by the explosion are modeled by engineering algorithms and numerical simulations. Analysis confirmed that bridge failure occurred due to the blast load and there was no inherent design defect. The results of this investigation are relevant towards understanding future events wherein a dynamic load might be accidentally applied to fixed structures. 相似文献
3.
利用模拟烟火药在定容、密闭条件下的数值计算方法,开发了1种以新型还原剂、硝酸钾为主的新型无硫烟花发射药配方。对该发射药的安全性能及使用性能进行测试,结果表明新型发射药的撞击感度、爆发点及静电感度安全性能均优于传统黑火药,且其压力上升速度、做功能力大于传统黑火药。 相似文献
4.
5.
目前,烟花药粉的称重混合工序主要以手工操作为主,是长期制约烟花爆竹安全生产的高危工序。针对这一工序,研发了一种专门用于烟花爆竹各配料称重、混合,并保证一定的称重精度及混合均匀度的混合称重机。基于粉体混合的定量计算及分析法,得出了混合度随时间变化的曲线,确定了粉体最佳的混合时间,并验算了药粉主要成分在混合前后的最大比例误差,结果完全满足烟花生产要求。 相似文献
6.
7.
8.
9.
Beat Berger 《Propellants, Explosives, Pyrotechnics》2005,30(1):27-35
Phenomena (reaction effects) such as varied light emissions, sound, varied burning rates, varied heats of reaction and reaction products occur during the reaction of inorganic redox systems used for pyrotechnics. The peculiarity of these redox reactions is, that they take place as solid‐solid, solid‐liquid or solid‐gaseous state reactions. In opposite the theoretical redox reaction normally postulated in inorganic chemistry takes place in a solvent. By variation of different parameters as for example the reducing agent, the oxidizer, the oxygen balance and the particle size, it is possible to create the above‐mentioned effects in a wide range. 相似文献
10.
在中国传统节日以及古代礼仪、中国现代节日中,烟花鞭炮与中国民俗有着密切的关系。烟花鞭炮,是中华民族文化的载体之一,寄托了人们的世代情感,是全人类和平和发展的象征,蕴含着繁复而深邃的文化寄寓,也是现代社会人们的文化生活之一。 相似文献