title: ÐÐ¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ ÑÐµÑÐ¼Ð¾Ð´ÐµÑÐ¾ÑÐ¼Ð°ÑÐ¸Ð¾Ð½Ð½ÑÑ Ð¿ÑÐ¾ÑÐµÑÑÐ¾Ð² Ð¿ÑÐ¸ Ð´ÑÐ³Ð¾Ð²Ð¾Ð¹ ÑÐ²Ð°ÑÐºÐµ Ð¼Ð¾ÑÑÐºÐ¸Ñ ÐºÐ¾Ð½ÑÑÑÑÐºÑÐ¸Ð¹ Ð¸Ð· Ð²ÑÑÐ¾ÐºÐ¾Ð¿ÑÐ¾ÑÐ½Ð¾Ð¹ Ð±ÐµÐ¹Ð½Ð¸ÑÐ½Ð¾Ð¹ ÑÑÐ°Ð»Ð¸
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: Modeling of thermal deformation processes in the arc welding of marine structures made of high-strength bainitic steel
Creators: name: Ð£ Ð§Ð¶Ð°Ð¾Ð¼Ð¸Ð½Ñ
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2020
Subjects: Ð­Ð»ÐµÐºÑÑÐ¾ÑÐ²Ð°ÑÐºÐ° Ð´ÑÐ³Ð¾Ð²Ð°Ñ
Ð¡ÑÐ°Ð»Ñ Ð²ÑÑÐ¾ÐºÐ¾Ð¿ÑÐ¾ÑÐ½Ð°Ñ
Ð¢ÐµÐ¿Ð»Ð¾Ð²ÑÐµ Ð¿ÑÐ¾ÑÐµÑÑÑ
Ð¼Ð¾ÑÑÐºÐ¸Ðµ Ð¿Ð»Ð°ÑÑÐ¾ÑÐ¼Ñ
offshore platform

description: Ð¦ÐµÐ»ÑÑ Ð¼Ð°Ð³Ð¸ÑÑÐµÑÑÐºÐ¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ ÑÐ²Ð»ÑÐ»Ð¾ÑÑ Ð¸Ð·ÑÑÐµÐ½Ð¸Ðµ ÑÐ²Ð°ÑÐ¸Ð²Ð°ÐµÐ¼Ð¾ÑÑÐ¸ Ð²ÑÑÐ¾ÐºÐ¾Ð¿ÑÐ¾ÑÐ½Ð¾Ð¹ ÑÑÐ°Ð»Ð¸ Ð´Ð»Ñ Ð¼Ð¾ÑÑÐºÐ¾Ð¹ Ð¿Ð»Ð°ÑÑÐ¾ÑÐ¼Ñ Ð¸ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° ÑÐµÐ¶Ð¸Ð¼Ð¾Ð² ÑÐ²Ð°ÑÐºÐ¸ Ð½Ð° Ð¾ÑÐ½Ð¾Ð²Ðµ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ ÑÐµÐ¿Ð»Ð¾Ð²ÑÑ Ð¿ÑÐ¾ÑÐµÑÑÐ¾Ð². Ð ÐºÐ°ÑÐµÑÑÐ²Ðµ Ð¾Ð±ÑÐµÐºÑÐ° Ð²ÑÐ±ÑÐ°Ð½Ð° Ð²ÑÑÐ¾ÐºÐ¾Ð¿ÑÐ¾ÑÐ½Ð°Ñ Ð±ÐµÐ¹Ð½Ð¸ÑÐ½Ð°Ñ ÑÑÐ°Ð»Ñ EQ70, Ð½Ð° ÐºÐ¾ÑÐ¾ÑÐ¾Ð¹ Ð¿ÑÐ¾Ð²ÐµÐ»Ð¸ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð¼Ð¸ÐºÑÐ¾ÑÑÑÑÐºÑÑÑÑ Ð¸ Ð¼ÐµÑÐ°Ð½Ð¸ÑÐµÑÐºÐ¸Ñ ÑÐ²Ð¾Ð¹ÑÑÐ². ÐÐ°Ð´Ð°ÑÐ¸ ÑÐ°Ð±Ð¾ÑÑ: 1. ÐÑÐ¿Ð¾Ð»Ð½Ð¸ÑÑ Ð°Ð½Ð°Ð»Ð¸Ð· Ð½Ð°ÑÑÐ½Ð¾-ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¾Ð¹ Ð»Ð¸ÑÐµÑÐ°ÑÑÑÑ Ð¾ ÑÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸ÑÑ ÑÐ²Ð°ÑÐºÐ¸ Ð²ÑÑÐ¾ÐºÐ¾Ð¿ÑÐ¾ÑÐ½ÑÑ ÑÑÐ°Ð»ÐµÐ¹ Ð´Ð»Ñ Ð¼Ð¾ÑÑÐºÐ¸Ñ ÐºÐ¾Ð½ÑÑÑÑÐºÑÐ¸Ð¹, ÑÐ¸Ð¼Ð¸ÑÐµÑÐºÐ¾Ð¼ ÑÐ¾ÑÑÐ°Ð²Ðµ, ÑÐ²Ð¾Ð¹ÑÑÐ²Ð°Ñ Ð¸ ÑÐ²Ð°ÑÐ¸Ð²Ð°ÐµÐ¼Ð¾ÑÑÐ¸ Ð±ÐµÐ¹Ð½Ð¸ÑÐ½ÑÑ ÑÑÐ°Ð»ÐµÐ¹. 2. ÐÑÐ¾Ð¸Ð·Ð²ÐµÑÑÐ¸ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ, Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ Ð¼Ð¸ÐºÑÐ¾ÑÑÑÑÐºÑÑÑÑ Ð¸ Ð¼ÐµÑÐ°Ð½Ð¸ÑÐµÑÐºÐ¸Ñ ÑÐ²Ð¾Ð¹ÑÑÐ² ÑÐ²Ð°ÑÐ½ÑÑ Ð¾Ð±ÑÐ°Ð·ÑÐ¾Ð² Ð¿ÑÐ¸ ÑÑÑÐ½Ð¾Ð¹ ÑÐ²Ð°ÑÐºÐµ Ð¸ ÑÐ²Ð°ÑÐºÐµ Ð¿Ð¾Ð´ ÑÐ»Ð¾ÐµÐ¼ ÑÐ»ÑÑÐ°. 3. ÐÑÐ¾Ð¸Ð·Ð²ÐµÑÑÐ¸ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ ÑÐµÑÐ¼Ð¾Ð´ÐµÑÐ¾ÑÐ¼Ð°ÑÐ¸Ð¾Ð½Ð½ÑÑ Ð¿ÑÐ¾ÑÐµÑÑÐ¾Ð² Ð¿ÑÐ¸ Ð´ÑÐ³Ð¾Ð²Ð¾Ð¹ ÑÐ²Ð°ÑÐºÐµ ÑÐ¾ÐµÐ´Ð¸Ð½ÐµÐ½Ð¸Ð¹ Ð²ÑÑÐ¾ÐºÐ¾Ð¹ ÑÐ¾Ð»ÑÐ¸Ð½Ñ Ð´Ð»Ñ Ð¿Ð¾ÑÑÑÐ¾ÐµÐ½Ð¸Ñ Ð¿Ð¾Ð»ÐµÐ¹ ÑÐµÐ¼Ð¿ÐµÑÐ°ÑÑÑÑ Ð¸ ÑÐ²Ð°ÑÐ¾ÑÐ½ÑÑ Ð½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð¸Ð¹ Ð² Ð¿Ð¾Ð¿ÐµÑÐµÑÐ½Ð¾Ð¼ Ð¸ Ð¿ÑÐ¾Ð´Ð¾Ð»ÑÐ½Ð¾Ð¼ Ð½Ð°Ð¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ð¸. Ð ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐµ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ð¹ Ð¾Ð¿ÑÐµÐ´ÐµÐ»Ð¸Ð»Ð¸ Ð·Ð½Ð°ÑÐµÐ½Ð¸Ñ ÐºÑÐ¸ÑÐ¸ÑÐµÑÐºÐ¾Ð³Ð¾ Ð²ÑÐµÐ¼ÐµÐ½Ð¸ Ð¾ÑÐ»Ð°Ð¶Ð´ÐµÐ½Ð¸Ñ Ð¸ Ð±ÑÐ»Ð° Ð²ÑÐ¿Ð¾Ð»Ð½ÐµÐ½Ð° ÑÐ²Ð°ÑÐºÐ° Ð¿Ð¾ ÑÑÐ¾Ð¼Ñ Ð´Ð¸Ð°Ð¿Ð°Ð·Ð¾Ð½Ñ. ÐÐ¿ÑÐµÐ´ÐµÐ»Ð¸Ð»Ð¸ Ð´Ð¸Ð°Ð¿Ð°Ð·Ð¾Ð½ ÑÐµÐ¼Ð¿ÐµÑÐ°ÑÑÑÑ Ð¿ÑÐµÐ´Ð²Ð°ÑÐ¸ÑÐµÐ»ÑÐ½Ð¾Ð³Ð¾ Ð½Ð°Ð³ÑÐµÐ²Ð° Ð´Ð»Ñ ÑÑÑÐ½Ð¾Ð¹ Ð´ÑÐ³Ð¾Ð²Ð¾Ð¹ ÑÐ²Ð°ÑÐºÐ¸ Ð¸ Ð°Ð²ÑÐ¾Ð¼Ð°ÑÐ¸ÑÐµÑÐºÐ¾Ð¹ Ð´ÑÐ³Ð¾Ð²Ð¾Ð¹ ÑÐ²Ð°ÑÐºÐ¸ Ð¿Ð¾Ð´ ÑÐ»ÑÑÐ¾Ð¼, Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð»Ð¸ Ð¼Ð¸ÐºÑÐ¾ÑÑÑÑÐºÑÑÑÑ Ð¸ ÑÑÐ²ÑÑÐ²Ð¸ÑÐµÐ»ÑÐ½Ð¾ÑÑÑ Ðº ÑÐ¾Ð»Ð¾Ð´Ð½ÑÐ¼ ÑÑÐµÑÐ¸Ð½Ð°Ð¼. ÐÐ»Ñ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ ÑÐµÐ¿Ð»Ð¾Ð²ÑÑ Ð¿ÑÐ¾ÑÐµÑÑÐ¾Ð² Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð»Ð¸ Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ñ ANSYS. Ð ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐµ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð»Ð¸ ÑÐ°ÑÐ¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð¸Ðµ ÑÐµÐ¿Ð»Ð¾Ð²ÑÑ Ð¿Ð¾Ð»ÐµÐ¹, Ð¿ÑÐ¾Ð´Ð¾Ð»ÑÐ½ÑÑ Ð¸ Ð¿Ð¾Ð¿ÐµÑÐµÑÐ½ÑÑ Ð½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð¸Ð¹ Ð² ÑÐ°Ð·Ð»Ð¸ÑÐ½ÑÑ Ð·Ð¾Ð½Ð°Ñ ÑÐ²Ð°ÑÐ½Ð¾Ð³Ð¾ ÑÐ²Ð° Ð¸ Ð·Ð¾Ð½Ñ ÑÐµÑÐ¼Ð¸ÑÐµÑÐºÐ¾Ð³Ð¾ Ð²Ð»Ð¸ÑÐ½Ð¸Ñ.
description: The aim of the master's work was to study the weldability of high-strength steel for the offshore platform and to develop welding parameters based on the simulation of thermal processes. As an object, high-strength bainitic steel EQ70 was chosen, on which microstructure and mechanical properties were studied. Objectives: 1. To analyze the scientific and technical literature on welding technologies for high-strength steels for marine structures, chemical composition, properties and weldability of bainitic steels. 2. Perform a simulation study of the microstructure and mechanical properties of the welded samples in manual welding and submerged arc welding. 3. To simulate thermal deformation processes in the arc welding of high thickness joints to construct temperature fields and welding stresses in the transverse and longitudinal directions. As a result of the studies, the critical cooling times were determined and welding was performed over this range. The preheating temperature range for manual arc welding and automatic submerged arc welding was determined, studied the microstructure and sensitivity to cold cracks. The ANSYS program was used to simulate thermal processes. As a result of the simulation, the distribution of thermal fields, longitudinal and transverse stresses in various zones of the weld and heat affected zones was investigated.