Configuration designing method for structure under inertial load effect

A technology of inertial load and design method, applied in calculation, special data processing applications, instruments, etc., can solve problems such as poor stiffness, and achieve the effect of improving stiffness
CN101604346AInactive Publication Date: 2009-12-16NORTHWESTERN POLYTECHNICAL UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
NORTHWESTERN POLYTECHNICAL UNIV
Publication Date
2009-12-16
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a configuration designing method for structure under inertial load effect, which is characterized in that a linear model and a RAMP interpolation model are respectively adopted for material density and Young modulus. The method takes integral stiffness maximum (namely softness minimum) of a structure as the goal and the volume of a given material as restriction and utilizes a mathematical programming method or a progressive structural optimization method to carry out the configuration designing for structure under inertial load effect. In each optimization design iteration, sensitivity filtration is carried out after objective function sensitivity is obtained by calculation. The invention has the beneficial effects that the coincident designing result is obtained by using the mathematical programming method and the progressive structural optimization method, and the integral stiffness of the structure under the inertial load effect is increased compared with the designing result of the existing business software.
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Description

technical field

[0001] The invention relates to a structural configuration design method, in particular to a structural configuration design method under the action of inertial load. Background technique

[0002] Inertial load is a body load that is directly related to the structural mass generated under the action of acceleration, so the inertial load is directly related to the presence or absence of materials. According to different forms of acceleration, it can be divided into two types: inertial overload (including the structure's own weight) generated by linear acceleration and centrifugal force generated under the action of rotational angular velocity. The optimal design of structures under inertial loads has important theoretical and practical value.

[0003] There are two main methods for structural configuration optimization design under inertial loads: mathematical programming method and progressive structural optimization method. In the mathematical programming ...

Claims

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