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Non-contacting deformation measurement method and system for determining deformation of object, and usage

A non-contact, object-based technology, applied in the direction of measuring devices, vehicle testing, machine/structural component testing, etc., can solve problems such as measurement errors of measuring instruments

Inactive Publication Date: 2019-05-28
计算机科学应用促进会
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these measuring devices have disadvantages: the measuring error of the measuring device, for example the depth noise (Tiefenrauschen) of the individual points of the TLS, is in some cases significantly greater than the desired resolution of the deformation measurement.

Method used

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  • Non-contacting deformation measurement method and system for determining deformation of object, and usage
  • Non-contacting deformation measurement method and system for determining deformation of object, and usage
  • Non-contacting deformation measurement method and system for determining deformation of object, and usage

Examples

Experimental program
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Embodiment Construction

[0043] figure 1 A wind tunnel 200 with a system 100 for deformation measurement is schematically shown. Object 40 arranged in wind tunnel 200 , such as for example a motor vehicle, can be examined by means of system 100 to determine how forces acting on object 40 due to air flowing towards object 40 result in deformation of at least a part of object 40 .

[0044] System 100 and methods that can be performed by means of system 100 are hereinafter referred to Figure 1-5 described in more detail. The steps of the method are in Figure 5 is schematically illustrated.

[0045] The system 100 includes a measuring device 10 for measuring an examination region 42 of an object 40 in a non-contact manner. System 100 also includes evaluation device 20 , which is designed to process the data detected from measuring device 10 in the manner described below and thereby determine the deformation of object 40 . Corresponding results can be shown by means of visualization device 30 of sy...

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PUM

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Abstract

The invention relates to a non-contacting deformation measurement method and system for determining deformation of an object, and usage. The deformation measurement method comprises the steps: determining an examination area of the object to be examined for deformation; determining a reference point cloud by non-contact measurement of the examination region of the object in the non-deformed state,determining a reference object to the reference point cloud, determining a deformation point cloud by contactless measuring of the examination region of the object in the deformed state under air inflow; for a predetermined portion of the examination area: determining a deformation for the portion of the examination area based on a ratio of a first value to a second value, the first value being alocation corresponding to the proportion of the examination area Partial cloud of the reference point cloud z u describes the reference object and wherein the second value describes a position of a partial point cloud of the deformation point cloud corresponding to the proportion of the examination area to the reference object.

Description

[0001] Cross References to Related Applications [0002] This application relates to German patent application DE 102017127401.4 filed on November 21, 2017, which is hereby incorporated by reference in its entirety. technical field [0003] The invention relates to the field of deformation measurement, in particular to a non-contact deformation measurement method, system and application for determining the deformation of an object. Background technique [0004] Objects are capable of deforming when forces act on the object, such as in the direction of air flow. For example, the outer skin of a vehicle can deform at high air flow velocities. This is most noticeably seen on a daily basis when a convertible (=high flexibility) is covered on the highway (=high speed). The deformation is based on the "narrowing" of the flow cross section of the air at the vehicle, where the flow speed is correspondingly (inversely) greater and forces transverse to the flow are generated. Defo...

Claims

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Application Information

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IPC IPC(8): G01B11/16
CPCG01B11/16G01B11/25G01M9/02G01M17/007G06T7/001G06T2207/10028
Inventor 曼纽尔·蒙特尼斯蒂芬·布罗德科博本杰明·翰豪泽
Owner 计算机科学应用促进会
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