According to new requirements on the scheduled maintenance for warships due to the mission expansion of warships and the development of equipment technology under the new situation，the research on the reform of scheduled maintenance mode was carried out. The general idea that transforming the time-based maintenance to the combination of time-based and condition-based one was presented. The key problems including the reasonable determination for the maintenance classification，time，project scope，and project duration were studied intensively. Some supporting mechanisms，such as ship underwater hull cleaning mechanism，the main onboard machinery replacing maintenance mechanism，and the mechanism determining the repair demands based on the status monitoring，were discussed. Some pilot projects for some representative warships were carried out. The practice shows that the theoretic readiness ratio for warship in the new scheduled maintenance mode can be improved about 5 %，and the benefit is very obvious.
With the significant increase of the complexity of warship equipment and difficulty of warship equipment support，in order to make sure warship equipment has good supportability，it’s important to improve related work for engineered warship equipment integrated logistic support（ILS）. The content of engineered warship equipment ILS is discussed，and its major work and efficient method in practice is summarized. Moreover，the problems and corresponding suggestions about engineered warship equipment ILS are discussed.
Four methods of benchmarking analysis，Delphi method with similar products，analog estimation method and statistical inference methods were applied to analyze and confirm the adaptability of the quantitative indicators for warship equipment reliability，maintainability and supportability. The principles for constructing the top-level parameter index and the “three of quality” quantitative indicators for warship equipment were proposed.
The reliability, maintainability, testability, supportability and safety(RMTSS) work items and achievements are presented. It includes the demonstration of the general design, scheme, further scheme, technology, detail, construction, and service in the every stage. Furthermore, this paper describes that the requirements of work item of each stage above. According to the main problems in the RMTSS, the suggestions can be showed in this research.
There are problems in the previous system reliability optimization study because of system cost only including system price and without considering the system operation cost during the life cycles. We employ a simple calculation method of the spare parts’cost based on the estimation for spare parts demand during the whole life cycle， in the condition of two kinds of nonlinear reliability-price function， system composition units being not repaired and units’life time obeying exponential distribution， research system reliability allocation optimization as the goal of minimizing the sum of system price and spare parts cost. The simulation results show that the method is simple， convenient and feasible， and can effectively avoid over optimization when only pursuing the lowest system price at the expense of the whole life cycle cost. The system reliability optimization scheme， which based on the spare parts’cost of life cycle， can efficaciously reduce system operation cost during the life cycles.
Traditional life demonstration test is conducted under normal conditions and fails to use degradation observations，thus requires large amount of time and money. We can employ degradation data to predict whether a unit will pass the test by the end of test，and the test can be terminated early when this prediction does not cost unacceptable risk. Also higher stress can accelerate the degradation of the unit to cut down the test time. Thus it is necessary to propose a method that take advantage of both degradation data and accelerated test to reduce the test time and cost，which is done by this article. In particular，the article propose an approach to analyses and calculate the additional risks caused by early termination of the test and applying higher stress based on degradation model，then the minimum sample size of different test time can be picked. The article also use optimal plan to give expected test time and give deciding rules of terminating the test for each unit. At last，the method is illustrated by an example， showing that the method is efficient in reducing test time.
In order to solve common problems in warship equipment maintenance that the depth of technical datum is not enough，and the preventive maintenance program and maintenance support configuration are no bases，the process of maintenance planning for warship equipment with technical requirement was presented by using the experience of other countries for reference，and the management measures were given out. The confirmations combined with a certain practical engineering were carried out.
Based on the analysis of integrated logistics support system abroad， this paper presents a top design for integrate logistics support system on domestic ships. It explains the system composition， main function and main technical indexes， and divides the integrated logistics support system into three subsystems， which are support resource system， ship integrated logistics support management information system， failure diagnosis and health management system. The function and composition of each subsystem is also elaborated in the paper. It can be referred for the integration and management for ship integrated logistics support system.
A planning model of ship equipment support system was proposed， which was systematization and complexity， on the basis of many years’ experience in the equipment support engineering. The planning layered structure and mapping relation of core problems were established， which factors were divided into three aspects， such as support demand， capacity-building， organization and implementation. The framework system of ship equipment technique support task， the demonstration model of ship life cycle maintenance structure， and the method of ship equipment maintenance design were built， which broke through the key techniques of ship equipment support system planning. This planning model could provide theoretical foundation for synchronizing supporting structure of ship equipment supporting system on the development stage of equipments， undertaking the technique support work orderly， and forming the support capacity fast.
The asbestos rubber fiber gaskets and epoxy gaskets were soaked in the seawater， alkaline solution（ 10 % NaOH ）， acid solution（10 % H2SO4） and heavy oil， and the variation of the volume resistivity and surface resistivity of the gaskets with soaking time were studied. The results showed that the wet resistivity of the asbestos rubber fiber gaskets reduced to 102 Ω（ or Ω?cm）level when being soaked in the alkaline solution and acid solution for two months and the period of validity of the insulation was inferred to four months in seawater， and however， the wet resistivity of the epoxy gaskets could remain 104~6 Ω（or Ω?cm） level， and as the conclusion， the performance of the insulation of the epoxy gaskets is much better than that of asbestos rubber fiber gaskets.
A set of corrosion detection system，which simultaneously possesses “measurement，collection and storage” functions，has been successfully designed and developed using of electrochemical noise technology and sensor technology on the basis of the comparative analysis of the common corrosion monitoring technology，according to the corrosion environment，characteristics and mechanism of the key parts of ship；the corrosion characteristics and behaviors of the key parts of ship. For the corrosion detection system，the data acquisition frequency can be as high as 10 Hz，the potential measurement range is from -4 000 mV to 4 000 mV and the measurement accuracy to potential error is 1 mV.
The relationship between ship equipment maintenance cost and price change was determined， through analysis of price chance effect on ship maintenance cost. By econometric models， based on the producer price index and different type of ship maintenance cost time series data， the influence law of price change on ship maintenance cost was studied and the stable equilibrium between sample data was tested by Augment Dickey-Fuller（ADF） method. Research shows that the inherent relevance between the ship equipment maintenance cost and price index is a long-term stable equilibrium， but the price change influence on ship equipment maintenance cost exists the lagging.
Weapon equipment readiness evaluation is important for the meticulous and scientific usage management and maintenance support of weapon equipment. However， the current evaluation methods don’t fit the new situation and new requirements in terms of timeliness， accuracy and task matching. Therefore， an improved evaluation method for weapon equipment readiness based on the technical status of the main onboard machinery was presented. Through the simulation evaluation of the readiness for a certain type of destroyer， the feasibility of this method was verified， and some countermeasures and suggestions to further improve the method and mechanism for equipment readiness evaluation were proposed.
The six dimension management method considering the characteristics of ship depot maintenance technical documentation is presented in this paper. The existing maintenance technical documentation situations are examined. Considering the characteristics huge contents， many company participate， big difficulty for quality and progress manage of write documentation. To solve these issues， a six dimension management method of request， kind example， maintain analysis， the knowledge base， quality management， progress
After the basic concepts，the basic principles and the main application methods and achievements of interdependent networks theory were briefly introduced，the multi-network characteristics in ship level repairing were explained，with the professional repairing networks，the repairing link networks and the management level networks as the case. The repairing networks，the equipment purchasing networks，the loading and moving networks and the technical guidance networks were respectively taken as the standard networks，whose interdependency between other networks was analyzed. In addition，the necessity of the study and the feasibility of the methods were verified by an example. This paper might provide methodological support for analyzing and finding weak links in the schedule management of ship level repairing，which means a lot to improving work intensity of ship level repairing and ensuring the ship level repairing finished on schedule.
Core support capacity is a relatively new and important concept for construction of military-civil integration equipment support system. The necessity of military-civil integration equipment support system based on core support capability was analyzed. The connotation of military-civil integration equipment support system based on core support capability was researched. The construction target and mission of military-civil integration equipment support system based on core support capability were brought forward. The construction approaches including top programming，system and mechanism，statute and support resources were discussed intensively.
According to actuality and construction requirement of support capability of warship equipment， the research on civil-military integration support capability construction of warship equipment was carried out. The construction target of actualizing military leading and civil-military integration support system was presented， the basic principle of support capability construction was expatiated， the main content and the principal method for enhancing capability construction were discussed from three respects including support mode， support mechanism and matching construction. The research can promote further development of civil-military integration support of warship equipment， and has significance of reference for culturing military equipment support central capability.
Under the multi-echelon repair and supply system， spares supply with lateral transshipments is an effective approach to improve support effectiveness. Focus on this issue， according to theories of life-death process and mutil-ehcelon technique for recoverable item control （METRIC）， spares lateral transshipments model under multi-echelon multi-indenture system is built， and heuristic algorithm is introduced to get the model result. Take the equipment availability as constraint and spares cost as objective， the spares inventory is optimized by marginal algorithm. Through the given case， the model correctness is verified by simulation， compared with the result without transshipments， numerical studies show that our model is superior in improving the support effectiveness of equipment.
This paper investigates a two-echolon inventory system with （S-1，S） policy that consists of several same repairable items and single repair facility， and assumes that the item demand occur according to a markovian arrival process （MAP）， the repair time， ship time and procurement time follow the general distribution which is represented by phase-type （PH） distribution. Then a inventory optimization model with better description ability and analytical performance is given， and the probability distribution of backorder is obtained. Finally， a numerical example was given to illustrate the effectiveness of the model.
The low efficiency of fertilizer utilization in China has resulted in severe nonpoint source pollution. Meanwhile， there exists a severe problem of water shortage and large amount of water consumption in agriculture. A way of facility agriculture based on drip irrigation of water and fertilizer technology for high-efficient development of industry and agriculture was proposed. The nutrients and water could be quantitatively fed to crops by using drip irrigation technology， which can increase the utilization efficiency of fertilizer， irrigation efficiency of water and crop yields. Using drip irrigation of filtered biogas slurry could take advantage of livestock manure and crop straw and improve rural ecological environment. The CO2 discharged from industry could be transported into the greenhouse after harmless treatment which can provide the carbon for crops. The wide application of drip irrigation technology can increase the demand of （poly vinyl chloride） PVC， which can release a part of the over production capacity of PVC and promote the development of chlor-alkali industry. Besides， renting and recycling of drip irrigation equipment can improve the industrial chain. This is an efficient way for the synergic development of industry and agriculture.
The importance of carrying out deep and thorough study on energy consumption， material consumption and waste emission of steel industry was emphasized. The guideline， way of thinking and theoretical base of the study were illustrated. A network diagram for macro-control on steel industry was conceived， and a group of multi-ratio formulas was derived； both of them are necessary theoretical tools for precise and effective macro-control on steel industry. Looking back， the main reasons for extra huge amount of energy consumption， material consumption and waste emission of China’s steel industry were identified. Looking forward， the principle， direction， and long-term target of the macro-control in the future were put forward. In a word， the theory and methodology of the macro-control on steel industry were initially formulated.