Improving the Performance of XMVB Software though Hierarchical Trajectory of Adjoint Method
نویسندگان
چکیده
In this paper we calculate the gradient of the energy function in XMVB software through the technique of automatic differentiation, instead of finite difference method. To reduce the memory requirement of the adjoint model, the hierarchical trajectory method is used. The results show that the time cost for calculating gradients, as well as for running the total XMVB, is dramatically cut down by more than scores of tine.
منابع مشابه
Trajectory tracking of under-actuated nonlinear dynamic robots: Adaptive fuzzy hierarchical terminal sliding-mode control
In recent years, underactuated nonlinear dynamic systems trajectory tracking, such as space robots and manipulators with structural flexibility, has become a major field of interest due to the complexity and high computational load of these systems. Hierarchical sliding mode control has been investigated recently for these systems; however, the instability phenomena will possibly occur, especia...
متن کاملAssessment of the Performance of Clustering Algorithms in the Extraction of Similar Trajectories
In recent years, the tremendous and increasing growth of spatial trajectory data and the necessity of processing and extraction of useful information and meaningful patterns have led to the fact that many researchers have been attracted to the field of spatio-temporal trajectory clustering. The process and analysis of these trajectories have resulted in the extraction of useful information whic...
متن کاملA Study on Effective Factors on New Product Development with an Emphasis on Fuzzy Hierarchical Analysis Approach
Nowadays the new product and its importance are consideredas an essential strategy for staying in business. Though the hi-techindustry has focused on value innovation and improving the qualityof the new product development (NPD) process to drive new productperformance, new product success has not changed dramaticallyover the years. This study presents a novel approach based on structuralequatio...
متن کاملDevelopment of a method for evaluating the environmental performance of ports based on the fuzzy analytic hierarchy process (FAHP)
Background: Evaluating ports' environmental performance as one of the two main parts of the maritime transport system is of great importance. This study was designed and conducted to develop a method for evaluating ports' environmental performance based on the fuzzy analytical hierarchical process. Method: The present study was conducted in 2020 with the participation of 22 experts in the field...
متن کاملA New Vision-Based and GPS-Signal-Independent Approach in Jamming Detection and UAV Absolute Positioning Assessment
The Unmanned Aerial Vehicles (UAV) positioning in the outdoor environment is usually done by the Global Positioning System (GPS). Due to the low power of the GPS signal at the earth surface, its performance disrupted in the contaminated environments with the jamming attacks. The UAV positioning and its accuracy using GPS will be degraded in the jamming attacks. A positioning error about tens of...
متن کامل