Market exploration is always not easy. That of tailored-blank technology in China can not be an exception. After taking over the marketing and sales job of Andritz Soutec products, I spent the first 2 years promoting ...Market exploration is always not easy. That of tailored-blank technology in China can not be an exception. After taking over the marketing and sales job of Andritz Soutec products, I spent the first 2 years promoting and pushing just the application of Tailored-blank technology. When the first project came, we unfortunately were confronting tough and ＂asymmetrical＂ competition. Even the management of Andritz Soutec intended to give up. My choice was ＂to still fight＂. After perseverance and great efforts, we finally concluded the first contract in China. As the Chinese saying goes ＂A good beginning is half of the success.＂ In the over 10 years after that, 57 Andritz Soutec Tailored-blank laser welding lines were sold in China market, which represents over 2/3 market share. For me it is one of the most successful stories.展开更多
建立了某型动车组铝合金焊接车体的有限元分析模型,对焊缝部位进行简化建模,焊缝与实际存在的差异在等效结构应力计算中进行修正;基于标准BS EN 12663—1:2010分析了车体承受的载荷,采用Box-Behnken正交矩阵设计确定了车体的9个疲劳载...建立了某型动车组铝合金焊接车体的有限元分析模型,对焊缝部位进行简化建模,焊缝与实际存在的差异在等效结构应力计算中进行修正;基于标准BS EN 12663—1:2010分析了车体承受的载荷,采用Box-Behnken正交矩阵设计确定了车体的9个疲劳载荷工况;对车体有限元模型施加多轴载荷,分析了车体侧墙上的4条长焊缝部位的应力分布,确定了6个应力因数计算的关注点;采用名义应力法和等效结构应力法计算车体侧墙焊缝的应力因数,对比分析了2种应力分析方法。分析结果表明:2种应力分析方法在循环次数为1.0×10^(7)的许用应力范围不同,名义应力为16.40 MPa,等效结构应力为26.61 MPa;6个关注点的名义应力范围均小于其等效结构应力范围,得到的车体焊缝6个关注点的名义应力和等效结构应力的应力因数分别为0.33、0.25、0.50、0.49、0.76、0.62和0.23、0.24、0.39、0.45、0.61、0.48;针对同一焊缝的关注点,名义应力法计算的应力因数大于采用等效结构应力法计算的应力因数;名义应力法存在很大的分散性,导致应力因数偏大,而等效结构应力法物理意义更明确,计算的应力因数更为合理。展开更多
文摘Market exploration is always not easy. That of tailored-blank technology in China can not be an exception. After taking over the marketing and sales job of Andritz Soutec products, I spent the first 2 years promoting and pushing just the application of Tailored-blank technology. When the first project came, we unfortunately were confronting tough and ＂asymmetrical＂ competition. Even the management of Andritz Soutec intended to give up. My choice was ＂to still fight＂. After perseverance and great efforts, we finally concluded the first contract in China. As the Chinese saying goes ＂A good beginning is half of the success.＂ In the over 10 years after that, 57 Andritz Soutec Tailored-blank laser welding lines were sold in China market, which represents over 2/3 market share. For me it is one of the most successful stories.
文摘建立了某型动车组铝合金焊接车体的有限元分析模型,对焊缝部位进行简化建模,焊缝与实际存在的差异在等效结构应力计算中进行修正;基于标准BS EN 12663—1:2010分析了车体承受的载荷,采用Box-Behnken正交矩阵设计确定了车体的9个疲劳载荷工况;对车体有限元模型施加多轴载荷,分析了车体侧墙上的4条长焊缝部位的应力分布,确定了6个应力因数计算的关注点;采用名义应力法和等效结构应力法计算车体侧墙焊缝的应力因数,对比分析了2种应力分析方法。分析结果表明:2种应力分析方法在循环次数为1.0×10^(7)的许用应力范围不同,名义应力为16.40 MPa,等效结构应力为26.61 MPa;6个关注点的名义应力范围均小于其等效结构应力范围,得到的车体焊缝6个关注点的名义应力和等效结构应力的应力因数分别为0.33、0.25、0.50、0.49、0.76、0.62和0.23、0.24、0.39、0.45、0.61、0.48;针对同一焊缝的关注点,名义应力法计算的应力因数大于采用等效结构应力法计算的应力因数;名义应力法存在很大的分散性,导致应力因数偏大,而等效结构应力法物理意义更明确,计算的应力因数更为合理。
