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弹性支承梁方法
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  elastic bearing beam method
     The characteristic equation of free transverse vibration mode of elastic bearing beams is deduced, and the non dimensional characteristic values of anterior steps reflecting the fixed frequency are calculated for several different elastic bearing beams. The elastic bearing beam method is developed for mode analysis of rigid frames.
     推导了弹性支承梁横向自由振动模态的特征方程 ,计算了几种不同弹性支承梁的前几阶反映固有频率的无量纲特征值 ,提出了刚架模态分析的弹性支承梁方法 .
短句来源
  相似匹配句对
     The Transfer Matrix Method for the Vibration of a Continuous Beam on the Elastical Supports
     弹性支承连续振动的传递矩阵方法
短句来源
     THE DAMAGE IDENTIFICATION OF SPRING-SUPPORTING BEAM WITH TWO STEP METHOD
     弹性支承损伤识别的二步方法
短句来源
     A GENERAL METHOD FOR ELASTIC BEAM ANALYSIS
     求解弹性的普遍化方法
短句来源
     The Application of Elastically Supporfed Beam
     弹性支承在工程中的应用
短句来源
     ANALYSIS OF INTERNAL FORCES IN CURVED BEAM WITH SPRING
     弹性支承圆弧内力分析
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The main purpose of the study is to discuss a new method for the analysis of plane rigid frame's winding vibration mode in its plane, and an elastic bearing beam method is presented. The results of the analysis are compared with some similar popular methods such as concentrate quality method, matrix displacement method and mode integration method. First, the characteristic equation of elastic bending beam's lateral free vibration mode is derived.The deriving process is analogical to rigid bending beam's mode...

The main purpose of the study is to discuss a new method for the analysis of plane rigid frame's winding vibration mode in its plane, and an elastic bearing beam method is presented. The results of the analysis are compared with some similar popular methods such as concentrate quality method, matrix displacement method and mode integration method. First, the characteristic equation of elastic bending beam's lateral free vibration mode is derived.The deriving process is analogical to rigid bending beam's mode analytic method in current literatures. The elastic bending beam method is presented to analyze rigid frame's mode, namely, part of rigid frame's elements are used as the elastic bending beam whose vibration rigid coefficient reveals the effect it receives from other parts. The rigid frame's characteristic equation is presented via the equivalency of vibration rigid coefficient, and every mode of the rigid frame can be acquired. The computed example shows that the elastic bending beam method is satisfactory when it is applied to the plane rigid frame's winding vibration mode analysis. The elastic bending beam method is compared with the precise finite beam method and the above-mentioned analogical methods.The comparison shows that the elastic bending beam method is precise,convenient and widely applicable.

研究的主要目的是探讨分析平面刚架在其平面内的弯曲振动模态新方法 ,并提出弹性支承梁法 还试图将其分析的结果同目前流行的一些近似方法 ,如集中质量法、矩阵位移法、模态综合法等进行比较 为此 ,首先推导了弹性支承梁横向自由振动模态的特征方程 ,其推导方法与一般著作上对刚性支承梁的模态分析方法类似 对于刚架的模态分析 ,笔者提出了弹性支承梁方法 ,即取刚架的一部分单元为弹性支承梁 ,而其动刚度系数是其他部分对它的影响 利用动刚度系数相等从而建立起刚架的特征方程 ,进而求出刚架的各阶模态 算例表明 :提出的弹性支承梁方法应用于平面刚架的弯曲振动模态分析取得了较好的结果 将文中提出的弹性支承梁法与准确的有限梁方法和上述几种近似方法作了对比分析 ,表明弹性支承梁法具有准确、简便和计算范围宽的优点

The characteristic equation of free transverse vibration mode of elastic bearing beams is deduced, and the non dimensional characteristic values of anterior steps reflecting the fixed frequency are calculated for several different elastic bearing beams. The elastic bearing beam method is developed for mode analysis of rigid frames. The present method is applied to the mode analysis of bending vibration of a plane rigid frame, and the result is satisfactory.

推导了弹性支承梁横向自由振动模态的特征方程 ,计算了几种不同弹性支承梁的前几阶反映固有频率的无量纲特征值 ,提出了刚架模态分析的弹性支承梁方法 .算例表明 ,将弹性支承梁法应用于平面刚架弯曲振动模态分析 ,能取得较好结果

The latent equation of the freely vibration modes of elastic bearing beam is deduced. Several beginning dimensionless latent values of different elastic bearing beams are worked out. Especially, some latent value tables of some beams with different elastic rigidness are given. Finally, the method of elastic bearing beam is applied to the modal analysis of bending vibration of plane rigid frame and a good result is acquired.

推导了弹性支承梁的横向自由振动模态的特征方程。计算了几种不同弹性支承梁的前几阶反映固有频率的无量纲特征值 ,有的还列出了特征值随弹性刚度系数变化而变化的表格。将弹性支承梁的方法应用于平面刚架的弯曲振动模态分析 ,取得了比较好的结果。

 
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