This paper is a supplementary work to the total 14 species of genus Panurginus described recently from the eastern Palaearctic Region. This genus is not well studied in China and where there were only two known specie...This paper is a supplementary work to the total 14 species of genus Panurginus described recently from the eastern Palaearctic Region. This genus is not well studied in China and where there were only two known species, P nigripes Morawitz and P flavotarsus Wu. The type species of the genus, P niger Nylander, known from Russia and Mongolia, is newly recorded from northern China. The total species now known from China are three species in two species groups, the niger-group and the herzi-group. A key to males of these Chinese species is given.展开更多
This paper presents an optimal vehicle and seat suspension design for a half-car vehicle model to reduce human-body vibration (whole-body vibration). A genetic algorithm is applied to search for the optimal parameters...This paper presents an optimal vehicle and seat suspension design for a half-car vehicle model to reduce human-body vibration (whole-body vibration). A genetic algorithm is applied to search for the optimal parameters of the seat and vehicle suspension. The desired objective is proposed as the minimization of a multi-objective function formed by the combination of seat suspension working space (seat suspension deflection), head acceleration, and seat mass acceleration to achieve the best comfort of the driver. With the aid of Matlab/Simulink software, a simulation model is achieved. In solving this problem, the genetic algorithms have consistently found near-optimal solutions within specified parameters ranges for several independent runs. For validation, the solution obtained by GA was compared to the ones of the passive suspensions through sinusoidal excitation of the seat suspension system for the currently used suspension systems.展开更多
基金supported by "Postdoctoral Program for African Researchers of China-Africa Science and Technology Partnership Program (CASTEP)"the Chinese Postdoc Foundation,Beijingthe "National Natural Science Foundation of China (U0936601)"
文摘This paper is a supplementary work to the total 14 species of genus Panurginus described recently from the eastern Palaearctic Region. This genus is not well studied in China and where there were only two known species, P nigripes Morawitz and P flavotarsus Wu. The type species of the genus, P niger Nylander, known from Russia and Mongolia, is newly recorded from northern China. The total species now known from China are three species in two species groups, the niger-group and the herzi-group. A key to males of these Chinese species is given.
文摘This paper presents an optimal vehicle and seat suspension design for a half-car vehicle model to reduce human-body vibration (whole-body vibration). A genetic algorithm is applied to search for the optimal parameters of the seat and vehicle suspension. The desired objective is proposed as the minimization of a multi-objective function formed by the combination of seat suspension working space (seat suspension deflection), head acceleration, and seat mass acceleration to achieve the best comfort of the driver. With the aid of Matlab/Simulink software, a simulation model is achieved. In solving this problem, the genetic algorithms have consistently found near-optimal solutions within specified parameters ranges for several independent runs. For validation, the solution obtained by GA was compared to the ones of the passive suspensions through sinusoidal excitation of the seat suspension system for the currently used suspension systems.
