简介:Inconsideringthetheoryofstructuraldynamicoptimizationdesign,adesignmethodofthestructuralstyleofshipcompositebracewithrigidvibrationisolationmasswasstudied.Twokindsofstructuraldynamicoptimizationformulationsminimizingthevibrationaccelerationofthenon-pressurehullontherestrainingconditionofthegrossweightoftheshipcabinwereestablished:1)dynamicoptimizationofthesectionaldimensionsoftherigidvibrationisolationmassinthecompositebrace;2)dynamicoptimizationofthearrangingpositionoftherigidvibrationisolationmass.Throughtheoptimizationresults,sectionaldimensionsandthearrangingpositionoftherigidvibrationisolationmasswithbetterperformanceinreducingvibrationweregained,andsomereferencewasprovidedforpracticalengineeringdesignsaswellasenrichmentofthedesignmethodofanovelshipvibration-isolationbrace.
简介:摘要本文中讨论大型薄板车体焊接,车体由多种钢板拼接,外壳拼接完成后拼接里面筋板,并且拼接完成后的整体没有办法进行压紧等方法进行防止变形。本文中采用的方法是采用一种用于大型薄板车体焊接的装置。本装置采用点焊方法在焊接过程中把车体与装置型线板进行连接,将变形应力传递到装置上,当焊接完成后将车体与装置分离,其变形量大大小于自由状态下的变形量。技术难点在于大型薄板车体底部焊接完成后进行脱离时,工人操作困难,具有安全隐患,本文中设计一种快速脱离装置,使其能够快速脱离。本装置的优点是解决了型线磨损后的不精准问题,同时解决了车体底部空间不方便人员操作处的内部支撑型线的快速脱离,结构新颖,大大提高了设备运行的可靠性和准确性及操作安全性,同时减轻工人的劳动强度。