船舶与海洋工程
船舶與海洋工程
선박여해양공정
Shanghai Shipbuilding
2015年
1期
20-24,58
,共6页
散货船共同规范%底部纵骨%节点疲劳分析%优化%方案
散貨船共同規範%底部縱骨%節點疲勞分析%優化%方案
산화선공동규범%저부종골%절점피로분석%우화%방안
bulk carrier common structural rules (CSR)%bottom longitudinal%node fatigue analysis%optimization%plan
自从散货船共同规范（2006）颁布后，极大地提高了船舶设计的安全度，对于船舶结构的疲劳计算如何在满足 CSR 疲劳寿命要求的前提下，有效可行的优化是讨论热点。通过对几种不同的散货船底部纵骨节点进行疲劳分析比较，证明了一些可行的优化方案，并提出了对于这些节点在简化计算法中可参照使用的系数。经节点优化及采用有限元直接计算证明，散货船底部纵骨取消背部肘板，仍能保证疲劳寿命，对船厂节约成本有重大意义。
自從散貨船共同規範（2006）頒佈後，極大地提高瞭船舶設計的安全度，對于船舶結構的疲勞計算如何在滿足 CSR 疲勞壽命要求的前提下，有效可行的優化是討論熱點。通過對幾種不同的散貨船底部縱骨節點進行疲勞分析比較，證明瞭一些可行的優化方案，併提齣瞭對于這些節點在簡化計算法中可參照使用的繫數。經節點優化及採用有限元直接計算證明，散貨船底部縱骨取消揹部肘闆，仍能保證疲勞壽命，對船廠節約成本有重大意義。
자종산화선공동규범（2006）반포후，겁대지제고료선박설계적안전도，대우선박결구적피로계산여하재만족 CSR 피로수명요구적전제하，유효가행적우화시토론열점。통과대궤충불동적산화선저부종골절점진행피로분석비교，증명료일사가행적우화방안，병제출료대우저사절점재간화계산법중가삼조사용적계수。경절점우화급채용유한원직접계산증명，산화선저부종골취소배부주판，잉능보증피로수명，대선엄절약성본유중대의의。
Since the implementation of bulk carrier common structural rules (CSR) in 2006, the ship design safety has much improved. How to effectively optimize the ship structural fatigue calculation on the premise of satisfying CSR fatigue life requirement has become a focus of discussion. Through the comparative fatigue analysis of bottom longitudinal nodes of different types of bulk carriers, this study has validated several feasible optimization plans, and proposes the reference coefficients that can be used for the simplified calculation of these nodes. The node optimization and direct finite element calculation proves that the fatigue life can still be guaranteed if the bottom longitudinal back brackets are cancelled. This finding has important significance in terms of cost saving in shipyards.
