lumped mass 中文意思是什麼
lumped mass
解釋
集中質量-
The lumped mass matrix is a diagonal matrix.
集中質量陣是一個對用陣。 -
Then, the discussion of the influence of linear part, the lumped mass of the rigid links and the angular acceleration of flexible joint actuators on the non - linear dynamic character of flexible joint manipulator with flexible links is done
問中還就關節線性項、桿的集中質量和關節驅動加速度對關節非線性特性表現的影響進行了討論。 -
A numerical simulation of a planar 3r manipulator is performed. the results show that the non - linear torsion springs have important influences on the joint error and tip error of manipulators. moreover, the influences of linear part of non - linear, the lumped mass of the rigid links and the angular acceleration of joint actuators on the non - linear dynamic character of flexible joint manipulator are discussed
首先，建立了剛性桿非線性關節機器人的動力學模型，之後通過一平面3r機器人進行了數值模擬，說明了在一定情況下，關節的非線性對剛性桿機器人關節變形和末端誤差具有重要影響，並在此基礎上，討論了關節線性項、桿的集中質量和關節驅動加速度對機器人關節非線性特性的影響。 -
Through newton ’ s law of motion, the continuous model of the cantilever is built. the author discretizes the model through lumped mass method and supposed modal method, analyzes the discretized model through influence coefficients method. compare the results of the two models ; the general analysis method of non - uniform beams is obtained
其次，對懸臂梁結構進行了理論分析，應用牛頓運動定律，建立了懸臂梁系統的連續模型，並用集中質量法和假設模態法對懸臂梁系統進行了離散化，運用影響系數法對離散化后的系統進行了分析，並把分析結果和連續系統進行了對比，得到了變截面梁的一般分析方法。 -
In this article, the author stimulates some complex sites using two - phase media motion differential equations, finite element lumped - mass method and multi - transmitting formula
本文利用兩相介質運動微分方程和集中質量有限元法，並結合透射邊界對幾種復雜場地對地震波傳播的影響進行了模擬。 -
First, based on a field large - scale dynamic soil - box foundation - frame structure interaction system in hunan university, a 3 - d finite element model and a 2 - d lumped mass model are established in this paper
本文針對湖南大學建立的野外大比例尺土-箱型基礎-框架結構動力相互作用模型，首先建立了兩種分析計算模型:三維實體有限元模型和二維集中質量模型。 -
Lumped mass matrix
集總質量矩陣 -
Using the approximation form of lumped mass matrix instead of the mass matrix in finite element discretization in space, backward differencing scheme in time, an implicit computational scheme is yielded, it proved the convergence estimate for this implicit scheme
對有限元離散中引起較大誤差的質量矩陣，採用了近似形式的集總質量矩陣來代替，時間項採用向後差分，得到了一個隱式的計算格式，證明了計算格式的收斂性及其收斂速度估計。 -
Third, through employing the 2 - d lumped mass model and the single period objective function inversion method developed in this paper, and taking the measured structure response to a harmonic excitation at the top of structure in field as the reversion objectives, the linear physical and mechanical parameter inversion is performed in ansys by using apdl
第三，採用二維集中質量模型和本文提出的單周期目標函數反演方法，把頂部激振下實測的結構動力響應作為反演目標，利用apdl語言，在ansys軟體中實現了系統線性物理力學參數的反演。 -
Last, the 2 - d lumped mass nonlinear model is established to simulate the dynamic soil - box foundation - frame structure interaction system, and the variables separated nonlinear parameters fitting method is proposed
最後，建立了土-箱型基礎-框架結構相互作用系統的非線性計算模型，並提出了變量分離的非線性參數擬合法。 -
Chapter 3 deals with the lumped mass finite element methods and error estimations for fourth order nonstationary elliptic equation. chapter 4 disscusses finite element methods and error estimations for linear and nonlinear the hyperbolic equations. chapter 5 presents the lumped mass finite element methods and error estimations for the nonstationary stokes problem
全文分六章，第一章緒論；第二章論述解拋物問題的質量集中非協調有限元方法及其誤差估計；第三章論述非穩態四階橢圓方程的有限元方法及其誤差估計；第四章論述線性與非線性雙曲型方程的有限元方法及其誤差估計；第五章論述stokes問題的質量集中有限元方法及其誤差估計；第六章論述管道bingham流的質量集中有限元方法及其誤差估計。 -
Its contents include results on the finite element method for the dynamics equations, the lumped mass finite element methods and error estimations for solving the parabolic problem, fourth order nonstationary elliptic equation, the nonstationary stokes problem and bingham fluid problem, the finite element methods and error estimations for solving linear and nonlinear the hyperbolic equations
內容包括關于求解工程力學方程有限元方法的最新結果。解拋物問題、非穩態四階橢圓方程、 stokes問題以及管道bingham流的質量集中有限元方法及其誤差估計，解線性與非線性雙曲型方程的有限元方法及其誤差估計。
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