The twistor kinematic-energy model of the space-time and the kinematic-energy tensor as the energy-matter tensor in relativity are considered to demonstrate the possible behavior of gravity as gravitational waves that...The twistor kinematic-energy model of the space-time and the kinematic-energy tensor as the energy-matter tensor in relativity are considered to demonstrate the possible behavior of gravity as gravitational waves that derive of mass-energy source in the space-time and whose contorted image is the spectrum of the torsion field acting in the space-time. The energy of this field is the energy of their second curvature. Likewise, it is assumed that the curvature energy as spectral curvature in the twistor kinematic frame is the curvature in twistor-spinor framework, which is the mean result of this work. This demonstrates the lawfulness of the torsion as the indicium of the gravitational waves in the space-time. A censorship to detect gravitational waves in the space-time is designed using the curvature energy.展开更多
针对运营中垃圾填埋场高密度聚乙烯(high density polyethylene,HDPE)膜漏洞修补问题,提出一种将并联机构和热熔焊接加工结合起来的智能焊接机器人系统,围绕机、电、热多能域耦合系统动力学展开研究。利用键合图及旋量键合图理论分别构...针对运营中垃圾填埋场高密度聚乙烯(high density polyethylene,HDPE)膜漏洞修补问题,提出一种将并联机构和热熔焊接加工结合起来的智能焊接机器人系统,围绕机、电、热多能域耦合系统动力学展开研究。利用键合图及旋量键合图理论分别构建了电机驱动子系统、末端热熔焊执行子系统及并联机构机械本体动力学模型,得到机电热多能域系统全解动力学模型。对于给定焊缝实际执行轨迹,通过MATLAB软件状态方程求解、ADAMS软件模型动力学仿真及20-sim键合图仿真综合进行分析验证,验证了该机器人多能域系统动力学全解模型合理性,为其后续动力学参数辨识以及动力学控制研究奠定基础。展开更多
文摘The twistor kinematic-energy model of the space-time and the kinematic-energy tensor as the energy-matter tensor in relativity are considered to demonstrate the possible behavior of gravity as gravitational waves that derive of mass-energy source in the space-time and whose contorted image is the spectrum of the torsion field acting in the space-time. The energy of this field is the energy of their second curvature. Likewise, it is assumed that the curvature energy as spectral curvature in the twistor kinematic frame is the curvature in twistor-spinor framework, which is the mean result of this work. This demonstrates the lawfulness of the torsion as the indicium of the gravitational waves in the space-time. A censorship to detect gravitational waves in the space-time is designed using the curvature energy.
文摘针对运营中垃圾填埋场高密度聚乙烯(high density polyethylene,HDPE)膜漏洞修补问题,提出一种将并联机构和热熔焊接加工结合起来的智能焊接机器人系统,围绕机、电、热多能域耦合系统动力学展开研究。利用键合图及旋量键合图理论分别构建了电机驱动子系统、末端热熔焊执行子系统及并联机构机械本体动力学模型,得到机电热多能域系统全解动力学模型。对于给定焊缝实际执行轨迹,通过MATLAB软件状态方程求解、ADAMS软件模型动力学仿真及20-sim键合图仿真综合进行分析验证,验证了该机器人多能域系统动力学全解模型合理性,为其后续动力学参数辨识以及动力学控制研究奠定基础。
