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Дослідження виконано за допомогою розробленої математичної моделі дискретного гідравлічного приводу, особливостями якої є врахування нелінійної сили тертя на основі моделі LuGre, двостороннього руху штоку несиметричного гідроциліндра та пружних властивостей рідини. Проведена серія модельних експериментів процесу гальмування гідроприводу в режимі дискретного керування. Визначено кількісні залежності між часом гальмування штока, максимальним піковим тиском в порожнинах гідроциліндру, величиною початкової швидкості штоку та інерційною масою рухомих частин. Результати дослідження дозволяють визначати прогнозний час гальмування штоку та значення максимального пікового тиску для різних умов експлуатації та інерційних навантажень, що може бути використано при налаштуваннях гідроприводу та в процесі проектування.

The method of geodynamic zoning experienced in China three periods of its development: «formation», «development», and «innovation». With the help of this method, the models were created linking the block structures of the crustal tectonic plates and coal minefields. A program for calculating the stress state of the rocks massif was developed, taking into account the data on geodynamic zoning. A model of multifactorial recognition and forecasting of the geodynamical danger was developed. The realization of the geodynamical danger in minefields is assumed to demand elaboration of the special conditions in the bearing massif, that's why the indexes and methods for the estimation of these conditions were determined. For the investigations of the connection between the energy of a rock burst and the size of the massif area involved in this process, the corresponding model was created and the conditions of the outbursts were determined. The effectiveness of the method of the recognizing the areas of the increased geodynamic danger was provided with the examples of the particular mines. For the Yue Jin and Jingxi minefields, the outbursts and rockbursts dangerous, threatened, and non-dangerous areas were identified. The application of the preventive measures for the increasing the geodynamic safety in mining is reccomended to have to be based on the results of the forecast.

Institution system is an important part of modern social governance. Government, market and social relations within the system, as well as the corresponding institutional arrangements, can be said to be the top priority. Corporate social responsibility is an outstanding case that embodies the relationship and institutional arrangement of the three in practice.Government regulation of social credit system is a good example to analysis it. The research on government regulation of social credit system itself is put forward from the perspective of government, so in the field of government regulation of social credit system, should enterprises play a role? Especially in the era of big data, a large number of data are provided by private enterprises. Without these data, it is difficult to complete the construction of big data system. If enterprises should play their role, what’s the contribution of the government? Academic and industrial circles have been expressing their own opinions on these issues.Therefore, this paper attempts to build a game model among government, enterprise and society to solve the following problems: how to solve the relationship problem among government, enterprise and society? How to build the corresponding system? What’s the corresponding government regulation of China’s social credit system go from the perspective of business ethics?Through the game model analysis, the author finds that shareholders can reduce the threat of CEO replacement and collude with the management staff members to make the cake (including the interests of stakeholders) smaller. But on the basis of the loss of stakeholders’ rights and interests, shareholders’ wealth is increasing, which also explains why more and more senior executives are trying to form collusion with stakeholders in the campaign against antitakeover and loose audit system. Shareholders’ rights and interests and stakeholders’ rights and interests present a seesaw phenomenon. The response of the stakeholders and shareholders to a better corporate governance model is consistent. That is to say, the increase of shareholders’ income is not necessarily based on the loss of stakeholders. The game model also shows that the protection of formal laws and regulations is the main factor to increase the benefits of stakeholders. Through the case of the social credit system, we will conclude that the formal laws and regulations cannot fully ensure the increase of stakeholders’ income, but also need to strengthen the transformation of institutional advantages into governance advantages, and strengthen the law enforcement. It will finally promote the further improvement of social credit system.