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公开(公告)号：US20240070341A1
公开(公告)日：2024-02-29
申请号：US18144883
申请日：2023-05-09
发明人： Yingfei ZAN , Lihao YUAN , Duanfeng HAN , Hui JIA
摘要： An intelligent simulation system for jacket towing system includes a distributed collaborative simulation subsystem configured to provide a communication interface for each subsystem, a comprehensive management and evaluation subsystem configured to generate and issue a simulation subject, an operation control simulation subsystem configured to generate operation instructions, a motion simulation subsystem configured to receive parameters of the subject and the operation instructions, simulate a motion state of the jacket, a tugboat and a towrope in real time, and transmit the simulated motion states to the visual simulation subsystem, and a visual simulation subsystem configured to perform a three-dimensional display for the real-time simulation of the motion states of the jacket, the tugboat and the towrope. The intelligent simulation system involves human-computer interaction, which can be used for cooperative training and skill training of offshore towing operators, as well as for simulation rehearsal and scheme verification of jacket towing and installation.
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102.发明授权公开(公告)号：US11859686B2
公开(公告)日：2024-01-02
申请号：US17236297
申请日：2021-04-21
发明人： Guoyong Jin , Junjie Yuan , Tiangui Ye , Zhigang Liu
CPC分类号： F16F15/002 , F16F15/03 , F16F2222/06 , F16F2228/001 , F16F2228/063 , F16F2230/18
摘要： The present disclosure is an electromagnetic force control method of a magnetic disk type negative stiffness electromagnetic actuator. The present disclosure relates to the technical field of vibration control. According to the actually required static bearing capacity, the present disclosure determines the positive stiffness k of a mechanical spring required for a magnetic disk type quasi-zero stiffness vibration isolator; and establishes an electromagnetic force mathematical model of a single electromagnet under a condition of magnetic unsaturation. The present disclosure aims at the magnetic disk type quasi-zero stiffness vibration isolator and takes the coil current as an input control variable, so that the electromagnetic force and displacement of the negative stiffness electromagnetic actuator have a linear relationship, thereby changing the non-linear nature of a vibration isolation system, avoiding the multi-stable phenomenon caused by the non-linear electromagnetic force during working, and eliminating complex dynamic behaviors such as jumping when the whole vibration isolator works. Complex sensors and control systems are not needed, and implementation manners are simple and convenient.
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公开(公告)号：US11795330B1
公开(公告)日：2023-10-24
申请号：US18127678
申请日：2023-03-29
发明人： Qi Liu , Yue Sun , Peili Liu , Rongrong Chen , Jun Wang , Gaohui Sun
IPC分类号： C09D5/08 , C09D175/04
CPC分类号： C09D5/084 , C09D175/04
摘要： A polypyrrole-coated graphene corrosion inhibitor container and its preparation method and a composite coating and its application are provided. The polypyrrole encapsulated graphene corrosion inhibitor container includes graphene oxide and a polyvinylo layer encapsulated on the surface of the graphene oxide. The invention is based on a polymerization reaction by mixing a polypyrrole acid solution, a graphene oxide dispersion, and an initiator to obtain a polypyrrole encapsulated graphene corrosion inhibitor container. The polypyrrole encapsulated graphene corrosion inhibitor container regulates the release rate of the corrosion inhibitor by wrapping the polypyrrole around the graphene oxide so that it is released rapidly in alkaline solutions and at a slower rate in neutral media. The results of the practical example show that the polypyrrole encapsulated graphene corrosion inhibitor container can regulate the release rate of the corrosion inhibitor and has excellent corrosion protection properties and corrosion protection durability.
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104.发明申请公开(公告)号：US20230126942A1
公开(公告)日：2023-04-27
申请号：US17951125
申请日：2022-09-23
发明人： Jun WANG , Jiawei TANG , Rongrong CHEN , Qi LIU , Jingyuan LIU , Jing YU , Jiahui ZHU , Gaohui SUN , Peili LIU
IPC分类号： C09D5/16 , C09D175/04
摘要： A polypyrrole-graphene/polyurethane antifouling coating as well as a preparation method and an application thereof are provided. The polypyrrole-graphene/polyurethane antifouling coating includes component A and component B, wherein the component A mainly includes the following raw materials in parts by weight: 500 parts of group-hydrolyzable polyurethane prepolymer, 25-50 parts of bentonite, 25-50 parts of titanium dioxide, 60-120 parts of zinc oxide, 15-30 parts of talcum powder, and 15-30 parts of polypyrrole-graphene nanofiller; and the component B mainly includes the following raw materials in parts by weight: 5-7 parts of leveling agent, 5-7 parts of defoamer, 6-15 parts of chain extender, 10-25 parts of silane coupling agent, and 1-2 parts of catalyst. The two-component polyurethane coating of the present invention has relatively good adhesion, collision resistance and cracking resistance, and the antifouling property and the antifouling durability can be improved.
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105.发明授权公开(公告)号：US11607971B2
公开(公告)日：2023-03-21
申请号：US17156535
申请日：2021-01-23
发明人： Tong Wang , Guangxin Yang , Yu Wang , Shan Gao , Liwei Chen
摘要： A method for scheduling EV battery swap based on IoV, in which the roadside units regard battery-swap station clusters with a high degree of potential cooperation as a whole, and gather them into a single battery swap area; taking a service rate of a cluster of swap stations as an assessment target, and mainly examining a service capability, a service quality, and location information of each of swap station nodes themselves, and a current state of those electric vehicles that require to swap battery; providing a solution of the best joint actions for the overall electric vehicles to maintain the overall service balance of every swap station and improve a long-term performance of Internet of Vehicles. According to the invention, a battery of the electric vehicles can be swapped as soon as possible, and every battery swap station can maintain business balance.
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公开(公告)号：US11493438B2
公开(公告)日：2022-11-08
申请号：US17203893
申请日：2021-03-17
发明人： Quan Dong , Yuqin Zhang , Di Wang , Changhao Lu , Zuo Ni , Xiyu Yang
摘要： The disclosure discloses a methane value online real-time monitoring system, which includes a laser tunable system portion, a gas component detection system portion and a data processing system portion. The laser tunable system portion includes a computer, laser drivers, tunable lasers, a laser beam combiner, a collimator, and a beam expander, which are connected in sequence. The gas component detection system portion includes a gas supply system pipeline, a hose, a valve, and a gas chamber. The data processing system portion includes a detector, lock-in amplifiers, an oscilloscope, and a data acquisition card, which are connected in sequence. In a working process of the methane value online real-time monitoring system, gas mass namely the methane value change can be monitored in real time on line by collecting natural gas introduced into a combustion chamber through a gas supply system pipeline of a natural gas engine.
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107.发明授权公开(公告)号：US11313698B2
公开(公告)日：2022-04-26
申请号：US16922241
申请日：2020-07-07
发明人： Bo Xu , Lianzhao Wang , Lei Wu , Shengxin Li , Jiao Zhang , Kunming Jin , Yu Guo , Dalong Zhang
摘要： The invention provides a method for initial alignment of radar assisted airborne strapdown inertial navigation system. By calculating the slant distance and angular position between the radar and the airborne inertial navigation equipment, a nonlinear measurement equation for the initial alignment of the radar assisted inertial navigation system is obtained. The unscented Kalman filter algorithm is used to estimate and compensate the error amount of strapdown inertial navigation system to complete the initial alignment task. The significance of the present invention is to provide an in-flight initial alignment solution when the global positioning system is limited, which has fast convergence speed and high estimation accuracy and has high engineering application value.
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公开(公告)号：US20220123627A1
公开(公告)日：2022-04-21
申请号：US17564656
申请日：2021-12-29
发明人： Long Liu , Qihao Mei , Hao Zhao , Zhichun Xu , Yuanheng Tang , Chen An , Xiao Han , Junjie Liu
摘要： A free piston generator based on a rigid synchronous transmission system is provided, which belongs to the technical field of power energy. The present disclosure solves the problems of low power generation efficiency and low stability of the existing free piston generator. The free piston generator based on the rigid synchronous transmission system includes a first linear generator set, a second linear generator set, a rigid synchronous transmission assembly, two high-pressure cylinders arranged at two ends of the first linear generator set, and two low-pressure cylinders arranged at two ends of the second linear generator set. The combustion product is firstly subjected to first-stage expansion in the high-pressure cylinder and is then subjected to second-stage expansion in the low-pressure cylinder, which effectively increases the energy utilization in exhaust gas, also increases the expansion work, and further improves the thermal efficiency and the power generation efficiency of the free piston generator. By means of the rigid synchronous transmission assembly, high-pressure pistons and low-pressure pistons are always kept in stable phase operation, so as to avoid the problems of wall-impingement and insufficient pressure of compressed air due to the phase mismatching.
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公开(公告)号：US20220120214A1
公开(公告)日：2022-04-21
申请号：US17565531
申请日：2021-12-30
发明人： Long Liu , Chen An , Zhichun Xu , Yuanheng Tang , Hao Zhao , Xiao Han , Junjie Liu , Qihao Mei
摘要： The present disclosure provides a six-cylinder opposed free piston internal combustion engine generator. The generator comprises two free piston internal combustion engine sets, one opposed piston internal combustion engine set and two linear generator sets. Air entering cylinders is subjected to first-stage compression in low-pressure cylinder sets in the free piston internal combustion engine sets and the opposed piston internal combustion engine set and then subjected to second-stage compression in high-pressure cylinder sets, and a high pressure gas produced after the combustion is subjected to first-stage expansion in the high-pressure cylinder sets and then subjected to second-stage expansion in the low-pressure cylinder sets. The technical problem about how to improve the power generation efficiency of the opposed free piston generator and improve the reliability of the device is solved, the six-cylinder opposed free piston internal combustion engine generator is provided, a dual piston dual cylinder type free-piston internal combustion engine linear generator is used for replacing a return device in the opposed free piston generator, and the reliability and the power generation efficiency of the device are improved.
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公开(公告)号：US11215475B2
公开(公告)日：2022-01-04
申请号：US17013741
申请日：2020-09-07
发明人： Jianhua Cheng , Ping Liu , Guangdi Luo , Li Yang , Xiangyu Sun , Wenhuan Fu , Mingtao Dong , Ping Dong
IPC分类号： G01C25/00 , G01C19/5776
摘要： The disclosure provides an experimental calibration method of a redundant inertial measurement unit including, step (1), establishing an installation angle model using a cone descriptive scheme, and obtaining a relationship of an angular speed of a carrier and an angular speed measured by each gyroscope, step (2), establishing a standard calibration model of the redundant inertial measurement unit based on a relationship between a sensor coordinate system and a carrier coordinate system, step (3), establishing a state equation and a measurement equation of a filter, step (4), performing a row amplification of measurement amounts based on the measurement equation established in step (3), and obtaining an amplificated measurement equation for improving observability, and step (5), obtaining a Jacobi matrix and a Hessian matrix based on the amplificated measurement equation, and estimating error parameters by an extended Kalman filtering algorithm based on a second-order Taylor expansion.
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