2024年3月26日,vivo正式发布全新一代折叠旗舰vivo X Fold3系列。作为vivo创新技术集大成之作,vivo X Fold3系列的机身重量和厚度不仅较上代机型大幅降低,更以219 g的最小重量创下了大折叠(内折)机型的轻薄新纪录,媲美主流直板旗舰。在...2024年3月26日,vivo正式发布全新一代折叠旗舰vivo X Fold3系列。作为vivo创新技术集大成之作,vivo X Fold3系列的机身重量和厚度不仅较上代机型大幅降低,更以219 g的最小重量创下了大折叠(内折)机型的轻薄新纪录,媲美主流直板旗舰。在这次发布会上,vivo于手机行业全球首发了半固态电池技术,大幅提升了电池抗低温性能。配合领先行业的二代硅材料,再次突破手机电池中难以实现的容量大、电池薄、充电快“不可能三角”,让三者兼得。vivo X Fold3系列搭载的蓝海电池最大容量达到等效5700 mAh,单边最薄厚度低至4.65 mm,可搭载最高100 W双芯闪充和50 W无线闪充充电组合,为消费者带来更长的折叠屏续航时长。展开更多
The objective and constraint functions related to structural optimization designs are classified into economic and performance indexes in this paper.The influences of their different roles in model construction of str...The objective and constraint functions related to structural optimization designs are classified into economic and performance indexes in this paper.The influences of their different roles in model construction of structural topology optimization are also discussed.Furthermore,two structural topology optimization models,optimizing a performance index under the limitation of an economic index,represented by the minimum compliance with a volume constraint(MCVC)model,and optimizing an economic index under the limitation of a performance index,represented by the minimum weight with a displacement constraint(MWDC)model,are presented.Based on a comparison of numerical example results,the conclusions can be summarized as follows:(1)under the same external loading and displacement performance conditions,the results of the MWDC model are almost equal to those of the MCVC model;(2)the MWDC model overcomes the difficulties and shortcomings of the MCVC model;this makes the MWDC model more feasible in model construction;(3)constructing a model of minimizing an economic index under the limitations of performance indexes is better at meeting the needs of practical engineering problems and completely satisfies safety and economic requirements in mechanical engineering,which have remained unchanged since the early days of mechanical engineering.展开更多
文摘2024年3月26日,vivo正式发布全新一代折叠旗舰vivo X Fold3系列。作为vivo创新技术集大成之作,vivo X Fold3系列的机身重量和厚度不仅较上代机型大幅降低,更以219 g的最小重量创下了大折叠(内折)机型的轻薄新纪录,媲美主流直板旗舰。在这次发布会上,vivo于手机行业全球首发了半固态电池技术,大幅提升了电池抗低温性能。配合领先行业的二代硅材料,再次突破手机电池中难以实现的容量大、电池薄、充电快“不可能三角”,让三者兼得。vivo X Fold3系列搭载的蓝海电池最大容量达到等效5700 mAh,单边最薄厚度低至4.65 mm,可搭载最高100 W双芯闪充和50 W无线闪充充电组合,为消费者带来更长的折叠屏续航时长。
基金supported by the National Natural Science Foundation of China(Grant 11172013)
文摘The objective and constraint functions related to structural optimization designs are classified into economic and performance indexes in this paper.The influences of their different roles in model construction of structural topology optimization are also discussed.Furthermore,two structural topology optimization models,optimizing a performance index under the limitation of an economic index,represented by the minimum compliance with a volume constraint(MCVC)model,and optimizing an economic index under the limitation of a performance index,represented by the minimum weight with a displacement constraint(MWDC)model,are presented.Based on a comparison of numerical example results,the conclusions can be summarized as follows:(1)under the same external loading and displacement performance conditions,the results of the MWDC model are almost equal to those of the MCVC model;(2)the MWDC model overcomes the difficulties and shortcomings of the MCVC model;this makes the MWDC model more feasible in model construction;(3)constructing a model of minimizing an economic index under the limitations of performance indexes is better at meeting the needs of practical engineering problems and completely satisfies safety and economic requirements in mechanical engineering,which have remained unchanged since the early days of mechanical engineering.
