structural mechanics -凯发k8网页登录

solve linear static, transient, modal analysis, and frequency response problems

with structural analysis, you can predict how components behave under loading, vibration, and other physical effects. this helps you design robust mechanical components by validating designs through simulation and reducing the need for physical testing.

the toolbox lets you perform linear static analysis, transient analysis, modal analysis, and frequency response analysis. a typical programmatic workflow for solving a structural problem includes these steps:

create a special structural analysis container for a solid (3-d), plane stress, or plane strain model.
define 2-d or 3-d geometry and mesh it.
assign structural properties of the material, such as young's modulus, poisson's ratio, and mass density.
specify a damping model and its values for a dynamic problem.
specify gravitational acceleration as a body load.
specify boundary loads and constraints.
specify initial displacement and velocity for a dynamic problem.
solve the problem and plot results, such as displacement, velocity, acceleration, stress, strain, von mises stress, principal stress and strain.
approximate dynamic characteristics of a structural model by using reduced order modeling (rom).

functions

structural model setup

	create model
	assign structural properties of material for structural model
	specify damping parameters for transient or frequency response structural model
	specify body load for structural model
	specify boundary loads for structural model
	specify boundary conditions for structural model
	set initial conditions for a transient structural model
	specify structural superelement interface for component mode synthesis
	solve structural analysis, heat transfer, or electromagnetic analysis problem
	assemble finite element matrices
	reduce structural or thermal model
	recover full-model transient solution from reduced-order model (rom)
	linearize structural or thermal model
	specify inputs to linearized model
	specify outputs of linearized model

solutions at nodal locations

	evaluate stress for dynamic structural analysis problem
	evaluate strain for dynamic structural analysis problem
	evaluate von mises stress for dynamic structural analysis problem
	evaluate reaction forces on boundary
	evaluate principal stress at nodal locations
	evaluate principal strain at nodal locations

solutions interpolated to custom locations

	interpolate displacement at arbitrary spatial locations
	interpolate velocity at arbitrary spatial locations for all time or frequency steps for dynamic structural model
	interpolate acceleration at arbitrary spatial locations for all time or frequency steps for dynamic structural model
	interpolate stress at arbitrary spatial locations
	interpolate strain at arbitrary spatial locations
	interpolate von mises stress at arbitrary spatial locations

visualization

	plot solution or mesh for 2-d problem
	plot solution or surface mesh for 3-d problem
	plot pde geometry
	plot pde mesh
	create and plot pde visualization object

structural model properties

	find structural material properties assigned to geometric region
	find damping model assigned to structural dynamics model
	find structural boundary conditions and boundary loads assigned to geometric region
	find initial displacement and velocity assigned to geometric region
	find body load assigned to geometric region

live editor tasks

create and explore visualizations of pde results in the live editor

objects

	structural model object
	reduced-order structural model results
	static structural solution and derived quantities
	transient structural solution and derived quantities
	modal structural solution
	frequency response structural solution and derived quantities

properties

	structural material property assignments
	damping assignment for a structural analysis model
	superelement interface assignment for structural model
	body load assignments
	boundary condition or boundary load for structural analysis model
	initial displacement and velocity over a region
	initial displacement and velocity at mesh nodes
	algorithm options for solvers
	pde visualization of mesh and nodal results

topics

structural analysis workflow

deflection analysis of bracket
analyze a 3-d mechanical part under an applied load and determine the maximal deflection.
stress concentration in plate with circular hole
perform a 2-d plane-stress elasticity analysis.
structural dynamics of tuning fork
perform modal and transient analysis of a tuning fork.
dynamics of damped cantilever beam
include damping in the transient analysis of a simple cantilever beam.
use modal analysis results to compute the transient response of a thin 3-d plate under a harmonic load at the center.
solve a coupled thermo-elasticity problem.
axisymmetric thermal and structural analysis of disc brake
simplify analysis of a disc brake by using an axisymmetric model for thermal and thermal stress computations.
vibration of square plate
calculate the vibration modes and frequencies of a 3-d simply supported, square, elastic plate.
reduced-order modeling technique for beam with point load
eliminate degrees of freedom that are not on the boundaries of interest by using the craig-bampton rom technique.
analyze shoulder link of kinova® gen3 ultra lightweight robot arm for deformations under applied pressure.
thermal stress analysis of jet engine turbine blade
compute the thermal stress and deformation of a turbine blade in its steady-state operating condition.

general pde workflow

solve a coupled elasticity-electrostatics problem.
calculate the deflection of a structural plate acted on by a pressure loading.
analyze the dynamic behavior of a beam clamped at both ends and loaded with a uniform pressure load.
find vibration modes of a circular membrane.
perform coupled electro-mechanical finite element analysis of an electrostatically actuated micro-electro-mechanical (mems) device.

structural mechanics equations

linear elasticity equations for plane stress, plane strain, and 3-d problems.