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本文对毛细管节流环形多油垫平面静压支承的倾斜刚度及其异向性进行研究。本文推导出在任意傾斜工况和不同支承参数下支承承载能力的精确计算公式并编出计算机的源程序。它克服了现有文献所推荐近似公式的适用局限性。本文引进过去没有的“倾斜中心高刚度”新概念和过去不大重视的“倾斜刚度异向性”概念,丰富人们对倾斜刚度理论的客观认识。本文指出,支承的节流比是影响支承的倾斜刚度的重要因素之一,选用最佳节流比,将使支承获得最大的倾斜刚度。同时,支承的不同油垫数目是影响支承倾斜刚度异向性的最重要因素。随油垫数的增加,支承的傾斜刚度异向性将随之减小。在静态工况下,4油垫支承的倾斜角刚度异向最大差值达30％,而7油垫数以上的支承,其异向性基本消失。本文通过数学推导,并对7种油垫数的支承逐一进行分析和试验验证,所得出的承载能力的精确计算公式、异向性规律和支承参数优化设计等方面的成果不但为舰船雷达用该类支承的设计提供理论根据,而且对前人文献的结论予以填补和修正,解决了人们在理论上和实践中长期探索的有关问题,并提出了比日本学者稻崎一郎等关于4油垫支承静态异向性可忽略的论点更为合理和精确的结论。
In this paper, the research on the tilt stiffness and its anisotropy of hydrostatic support for capillary throttling ring multi-oil pad was carried out. In this paper, we derive the exact calculation formula of the bearing capacity under arbitrary tilting conditions and different supporting parameters and compile the computer source program. It overcomes the applicable limitations of the approximate formulas recommended by the existing literature. In this paper, we introduce the concept of “high rigidity of inclined center” that was not available in the past and the concept of “inclined stiffness anisotropy”, which was neglected in the past, to enrich people’s objective understanding of the theory of inclination stiffness. This paper points out that the throttling ratio of the bearing is one of the important factors that affect the tilting stiffness of the bearing. Choosing the optimal throttling ratio will make the bearing obtain the maximum tilting stiffness. At the same time, the number of different oil pads supported is the most important factor affecting the anisotropy of bearing tilt stiffness. With the increase of the number of oil pads, the bearing tilt stiffness anisotropy will decrease. Under static conditions, the maximum deviation of the tilt angle stiffness of the 4 oil pad supports reaches 30%, while the support of more than 7 oil pads almost disappears. In this paper, mathematical deduction, and the seven kinds of oil pad support one by one analysis and experimental verification, the resulting bearing capacity of the exact formula, the anisotropy of the law and the bearing parameters of the optimal design of the results not only for marine radar The design of this type of support provides the theoretical basis and complements and ameliorates the conclusions of the predecessors ’literature. It solves the problems that people have probed in the theory and practice for a long time and puts forward some suggestions than the Japanese scholars’ It is a more reasonable and accurate conclusion to support the negligible argument of static anisotropy.