In this paper modelling of the translational motion of transportation rail-guided cart with rope suspended payload is considered. The linearly moving cart,driven by a travel mechanism,is modelled as a discrete six deg...In this paper modelling of the translational motion of transportation rail-guided cart with rope suspended payload is considered. The linearly moving cart,driven by a travel mechanism,is modelled as a discrete six degrees of freedom (DOF) dynamic system. The hoisting mechanism for lowering and lifting the payload is considered and is included in the dynamic model as one DOF system. Differential equations of motion of the cart elements are derived using Lagrangian dynamics and are solved for a set of real-life constant parameters of the cart. A two-sided interaction was observed between the swinging payload and the travel mechanism. Results for kinematical and force parameters of the system are obtained. A verification of the proposed model was conducted.展开更多
The rock music in contemporary China is a filed for the folk, official, elite and other multi-element ideology competition. Wang Feng is a winner walking on the ideological balance beam. After deconstructing Cui Jian...The rock music in contemporary China is a filed for the folk, official, elite and other multi-element ideology competition. Wang Feng is a winner walking on the ideological balance beam. After deconstructing Cui Jian＇s grand narrative mode and strong critical feature, his works have been endowed with heavy critical color and reflection value by a grassroots band named ＂Xuriyanggang＂. Besides, Wang Feng＇s works have eliminated the distinction between the official and folk feature, elegance and worldly feature, as well as elite and mass. To a large extent, they have defined the rock music in contemporary China, and pushed the Chinese rock to the mainstream market. Consequently, the Chinese rock has been gradually developed into multiple and compound culture modes.展开更多
文摘In this paper modelling of the translational motion of transportation rail-guided cart with rope suspended payload is considered. The linearly moving cart,driven by a travel mechanism,is modelled as a discrete six degrees of freedom (DOF) dynamic system. The hoisting mechanism for lowering and lifting the payload is considered and is included in the dynamic model as one DOF system. Differential equations of motion of the cart elements are derived using Lagrangian dynamics and are solved for a set of real-life constant parameters of the cart. A two-sided interaction was observed between the swinging payload and the travel mechanism. Results for kinematical and force parameters of the system are obtained. A verification of the proposed model was conducted.
文摘The rock music in contemporary China is a filed for the folk, official, elite and other multi-element ideology competition. Wang Feng is a winner walking on the ideological balance beam. After deconstructing Cui Jian＇s grand narrative mode and strong critical feature, his works have been endowed with heavy critical color and reflection value by a grassroots band named ＂Xuriyanggang＂. Besides, Wang Feng＇s works have eliminated the distinction between the official and folk feature, elegance and worldly feature, as well as elite and mass. To a large extent, they have defined the rock music in contemporary China, and pushed the Chinese rock to the mainstream market. Consequently, the Chinese rock has been gradually developed into multiple and compound culture modes.
