Experimental study on influencing factors of hydrodynamic coefficient for jack-up platform

Tian Xiaojie; Liu Yunxiang; Liu Guijie; Xie Yingchun; Wang Shuqing

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Experimental study on influencing factors of hydrodynamic coefficient for jack-up platform

机译：自升式平台水动力系数影响因素的实验研究

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摘要

This paper presents the hydrodynamic coefficient analysis for jack-up platform. Influencing factors of scale ratio, rack and incident angle are studied to explore the relations between the influencing factors and hydrodynamic coefficients. Wave tank test is introduced to carry out the hydrodynamic experiments. Test platform was set up in the wave flume, where wave and current load in different flow velocity, wave height and period combination can be simulated. Various experimental models are manufactured according to the influencing factors. The data was collected by using strain transducer and six-dimensional force sensor, which could measure the wave and current load. Based on Morison equation, hydrodynamic coefficients under different experimental conditions were obtained by analyzing the experiment data. Furthermore, the relationships between the influencing factors and hydrodynamic coefficient are discussed. Results show that scale ratio, rack and incident angle have great effect on the hydrodynamic characteristic for jack-up platform.

机译：本文介绍了自升式平台的水动力系数分析。研究了比例比，齿条和入射角的影响因素，探讨了影响因素与流体动力系数之间的关系。引入水箱试验进行水动力实验。在波浪槽中建立了测试平台，可以模拟不同流速，波浪高度和周期组合下的波浪和电流载荷。根据影响因素制造了各种实验模型。使用应变传感器和六维力传感器收集数据，可以测量波和电流负载。根据莫里森方程，通过分析实验数据，获得了不同实验条件下的水动力系数。此外，讨论了影响因素与流体动力系数之间的关系。结果表明，比例比，齿条和入射角对自升式平台的水动力特性有很大的影响。

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来源
《Ocean Engineering》 |2019年第1期|106588.1-106588.10|共10页
作者
Tian Xiaojie; Liu Yunxiang; Liu Guijie; Xie Yingchun; Wang Shuqing;
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作者单位

Ocean Univ China Coll Engn Qingdao 266100 Shandong Peoples R China|Ocean Univ China Key Lab Ocean Engn Shandong Prov Qingdao 266100 Shandong Peoples R China;

Ocean Univ China Coll Engn Qingdao 266100 Shandong Peoples R China;

Ocean Univ China Key Lab Ocean Engn Shandong Prov Qingdao 266100 Shandong Peoples R China;

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原文格式 PDF
正文语种 eng
中图分类
关键词
Jack-up platform; Hydrodynamic coefficient; Wave tank test; Influencing factors;

机译：自升式平台;流体力学系数;波箱测试;影响因素;

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7. Decision-making is the process of analyzing information about a problem situation and comparing it to a specific conclusion in order to solve a specific problematic (Yıkılmaz, 2001; Miller and Byrnes, 2001). Decision-making styles are a mechanism that is influenced by the internal and external conditions that determine the direction of the decisions of the individual, the content of the decision-making process, and the outcome of the decision-making process (Payne, Bettman and Johson, 1993; Bavol’ár and Orosová, 2015). ACT is a contemporary member of the Cognitive Behavioral Therapy family. ACT (Acceptance and commitment therapy) has both similar and different directions with Behavioral Therapies and Cognitive Therapies (Herbet and Forman, 2011; Hayes, 2004). KKT responds to classical behavioral treatments using both existential and cognitive approaches in the analysis of behavior. KKT is a science wing that tries to solve human problems with a wider perspective aimed at solving problematic human behaviors (Plumb, Stewart, Dahl and Lundgren, 2009). It is seen that there is very little research about the new approach of ACT approach when the aiming country of our country is screened and it is thought that our country will contribute to the field of psychological counseling with the work done. In the scope of the research, experimental and control groups and preliminary test, post-test and follow-up measurements of 2x3 experimental design were used. The study's study group consists of a total of 24 (12 experimental and 12 control groups) university students studying in different departments and levels, continuing their education in the academic year of 2015-2016 in Ağrı province and İbrahim Chechen University in 2015-2016 academic year. The average age of participants in the experiment and control group is 20. There were 12 participants in the experimental group, 7 female and 5 male, and 12 participants, 7 female and 5 male in the control group. Personal Information Form and Decision Making Style Scale prepared by the researcher were used in the research. In order to decide on the tests to be used in the course of analyzing the data, the scores of the participant's Decision Styles Scale pre-test, which are placed primarily in the experimental and control groups, it was analyzed whether the basic expectations of parametric tests were answered. As a result of the analysis made, the scores, skewness and kurtosis coefficients obtained from the Decision Making Styles Scale were given to the experimental and control groups. It was determined that the distribution was normal in the result of Shapiro-Wilk test, in which the skewness and kurtosis coefficients of each sub-scale were ranked between -1 and +1. 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It was determined that there was no significant difference between pre-test, post-test and follow-up scores obtained from the Spontaneous-Instant Decision Style of experiment and control groups. Thus, it can be said that this situation does not cause a significant difference in the Spontaneous-Decision-Making Style scores from the decision style sub-dimensions of the ACT-oriented psychoeducation program applied to the experimental group. The ACT -oriented psychoeducation program had a decline in the intuitive decision-making styles of the individuals, but this decrease did not create significant differences. Thus, it can be said that this situation does not make a meaningful difference in the intuitive decision style scores from the decision style sub-dimensions of the KKT oriented psychoeducation program applied to the experimental group. 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It was determined that the experimental and control groups differed significantly from the pre-test scores obtained from the avoidant decision-making style but did not show any significant change within the scores of the post-test and follow-up tests. [O] . mustafa ercengiz, ali haydar şar 2018

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Experimental study on influencing factors of hydrodynamic coefficient for jack-up platform

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