KR20040046372A - apparent mass measurement device of a human body - Google Patents

apparent mass measurement device of a human body Download PDF

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Publication number
KR20040046372A
KR20040046372A KR1020020074291A KR20020074291A KR20040046372A KR 20040046372 A KR20040046372 A KR 20040046372A KR 1020020074291 A KR1020020074291 A KR 1020020074291A KR 20020074291 A KR20020074291 A KR 20020074291A KR 20040046372 A KR20040046372 A KR 20040046372A
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South Korea
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human body
upper plate
apparent mass
excitation
test subject
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KR1020020074291A
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Korean (ko)
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채창국
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현대자동차주식회사
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Priority to KR1020020074291A priority Critical patent/KR20040046372A/en
Publication of KR20040046372A publication Critical patent/KR20040046372A/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
    • G01G19/44—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing persons
    • G01G19/50—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing persons having additional measuring devices, e.g. for height
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D21/00—Measuring or testing not otherwise provided for
    • G01D21/02—Measuring two or more variables by means not covered by a single other subclass
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00—Measuring force or stress, in general
    • G01L1/14—Measuring force or stress, in general by measuring variations in capacitance or inductance of electrical elements, e.g. by measuring variations of frequency of electrical oscillators
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
    • G01P15/02—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses
    • G01P15/08—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

PURPOSE: An apparent mass measurement apparatus for a human body is provided to precisely measure the apparent mass of the human body by measuring a response characteristic of the human body at a frictional surface between a seat and the human body. CONSTITUTION: An apparent mass measurement apparatus for a human body includes a vibrator(3) for vibrating a vibrating table(1) in upward and downward directions. An upper plate(5) is installed at an upper portion of the vibrating table(1) in such a manner that a person participating in a test is seated on the upper plate(5). A plurality of vertical columns(6) is provided in order to support the upper plate(5) with respect to the vibrating table(1). A force detecting sensor(7) is positioned between the upper plate(5) and the vertical columns(6). An accelerator sensor(11) is provided between the upper plate(5) and the person.

Description

인체의 겉보기 질량 측정장치{apparent mass measurement device of a human body}Apparent mass measurement device of a human body

본 발명은 인체의 겉보기 질량 측정장치에 관한 것으로서, 보다 상세하게는 차량의 설계에서 진동 승차감을 개선하기 위한 인체와 시트 사이의 모형화에 사용되는 겉보기 질량(apparent mass)을 측정하는 장치에 관한 것이다.The present invention relates to an apparatus for measuring the apparent mass of a human body, and more particularly, to an apparatus for measuring an apparent mass used for modeling between a human body and a seat for improving vibration ride comfort in the design of a vehicle.

최근에는 차량의 평가 기준에서 승차감이 차지하는 비중이 점점 커지고 있으며, 상기와 같은 승차감을 개선하기 위한 연구가 다각도로 이루어지고 있는데, 이 중에는 차량의 진동 승차감과 관련하여 시트를 통해 인체로 전달되는 진동량을 예측할 수 있도록 시트(seat)-인(人) 체계를 적절히 모형화하려는 연구가 진행되고 있다.In recent years, the riding comfort occupies more and more of the evaluation criteria of the vehicle, and studies to improve the riding comfort are being conducted at various angles, among which the amount of vibration transmitted to the human body through the seat is related to the vibration riding comfort of the vehicle. Research is underway to adequately model the seat-in system to predict the situation.

상기와 같은 모형화에 대한 가장 기초적인 시도는 인체를 단순히 집중질량이나 여러 강체가 결합된 마네킨(mannequin)으로 가정한 것이었다.The most basic attempts at modeling such as above assume that the human body is simply a mannequin with a concentrated mass or a combination of several bodies.

그러나, 인체를 집중질량과 마네킨으로 모형화하면, 시트를 통한 진동 전달율 측정시 동일한 질량을 갖는 인체에 비해 높은 공진 주파수와 피크 값을 가지는 한계가 있으며, 나아가 집중질량이나 마네킨을 대상으로 시트의 진동 전달율을 측정하게 되면, 이를 차량 주행중 탑승자가 평가하게 되는 안락성과 상호 연관지을 수 없으므로, 실제 인체를 대상으로 진동 응답 특성을 파악하여 이를 시트-인 체계 모형화의 기초 자료로 활용하는 것이 차량용 시트 설계의 보다 현실적인 해결 방안이 된다.However, when the human body is modeled by the concentrated mass and the manikin, the vibration transmission rate through the sheet has a limitation of having a higher resonance frequency and a peak value than the human body having the same mass, and furthermore, the vibration transmission rate of the sheet for the concentrated mass or manikin. Since it cannot be correlated with the comfort assessed by the occupants while driving the vehicle, it is better to understand the vibration response characteristics of the actual human body and to use it as the basic data for modeling the seat-in system. It is a realistic solution.

그러나, 인체는 그 구조가 매우 복잡하기 때문에, 일반 기계계와 같이 특정부위를 가진하고 관심있는 지점의 응답을 측정하는 데에는 많은 어려움이 따른다.However, since the human body is very complicated in structure, it is difficult to measure the response of a point having a specific area and of interest, such as a general mechanical system.

이에 본 발명은 상기한 바와 같은 문제점에 착안하여 안출된 것으로서, 겉보기 질량(apparent mass)은 인체 각 부위의 움직임을 묘사할 수는 업지만 인체로 진동이 전달되는 시작점인 시트와 인체 사이 접촉면에서의 포괄적인 인체 응답특성을 묘사하므로 차량에서 발생하는 진동에 대한 인체의 응답특성을 분석할 수 있는 수단이 되므로, 상기와 같은 인체의 겉보기 질량을 효과적으로 측정할 수 있는 장치를 제공함에 그 목적이 있다.Therefore, the present invention has been devised in view of the above problems, the apparent mass (apparent mass) can not describe the movement of each part of the human body, but at the contact surface between the sheet and the human body, which is the starting point for transmitting vibration to the human body It is a purpose to provide a device capable of effectively measuring the apparent mass of the human body as it is a means to analyze the human body response characteristics to the vibration generated in the vehicle because it describes a comprehensive human response characteristics.

도 1은 본 발명에 따른 인체의 겉보기 질량 측정장치를 도시한 구성도,1 is a block diagram showing an apparent mass measuring apparatus of the human body according to the present invention,

도 2는 지지부가 가진되는 스프링-질량-감쇠 계의 설명도,2 is an explanatory diagram of a spring-mass-damping system having a support;

도 3은 본 발명에 따른 인체의 겉보기 질량 측정장치로 측정한 여러 피실험자의 겉보기 질량을 도시한 그래프이다.Figure 3 is a graph showing the apparent mass of the various subjects measured by the apparatus for measuring the apparent mass of the human body according to the present invention.

<도면의 주요 부분에 대한 부호의 간단한 설명><Brief description of symbols for the main parts of the drawings>

1; 가진대3; 가진기One; Having 3; Excitement

5; 상판6; 수직기둥5; Top 6; Vertical column

7; 힘센서9; 피실험자7; Force sensor 9; subject

11; 가속도센서11; Acceleration sensor

상기한 바와 같은 목적을 달성하기 위한 본 발명 인체의 겉보기 질량 측정장치는 가진대를 상하방향으로 가진시키도록 된 가진기와;An apparent mass measuring apparatus of the present invention for achieving the above object includes: an excitation device configured to excite an excitation stand in an up and down direction;

상기 가진대의 상측으로 피실험자가 앉도록 설치된 상판과;An upper plate installed to sit on the upper side of the excitation bag;

상기 상판을 상기 가진대에 대하여 지지하는 다수의 수직기둥과;A plurality of vertical pillars for supporting the upper plate with respect to the excitation stand;

상기 다수의 수직기둥과 상판 사이에 설치된 힘센서와;A force sensor installed between the plurality of vertical pillars and the upper plate;

상기 상판에 피실험자와의 사이에 개재되도록 설치된 가속도센서로 구성된 것을 특징으로 한다.The upper plate is characterized in that composed of an acceleration sensor installed to be interposed between the test subject.

이하, 첨부된 도면을 참조하여 본 발명의 바람직한 실시예를 설명하면 다음과 같다.Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

도 1은 본 발명에 따른 인체의 겉보기 질량 측정장치의 구성을 도시한 것으로서, 가진대(1)를 상하방향으로 가진시키도록 된 가진기(3)와, 상기 가진대(1)의 상측으로 피실험자가 앉도록 설치된 상판(5)과, 상기 상판(5)을 상기 가진대(1)에 대하여 지지하는 다수의 수직기둥(6)과, 상기 다수의 수직기둥(6)과 상판(5) 사이에 설치된 힘센서(7)와, 상기 상판(5)에 피실험자(9)와의 사이에 개재되도록 설치된 가속도센서(11)로 구성되어 있다.1 shows a configuration of an apparent mass measuring apparatus of a human body according to the present invention, an exciter 3 for exciting an excitation stand 1 in an up and down direction, and a test subject above the excitation stand 1. Between the upper plate 5, the plurality of vertical pillars 6, which support the upper plate 5 with respect to the excitation stand 1, and the plurality of vertical pillars 6 and the upper plate 5 installed so that the upper plate 5 is seated. It consists of the force sensor 7 provided, and the acceleration sensor 11 provided so that the said upper board 5 may be interposed between the test subject 9 and the subject 9.

여기서, 상기 상판(5)과 가진대(1) 사이의 수직거리는 피실험자(9)가 상판(5) 위에 편히 앉은 상태에서 상판(5)으로부터 피실험자(9)의 발바닥까지의 평균 높이로 하는 것이 바람직하다.Here, the vertical distance between the top plate 5 and the bead 1 is preferably set to the average height from the top plate 5 to the sole of the test subject 9 in a state where the test subject 9 sits comfortably on the top plate 5. Do.

상기 다수의 수직기둥(6)은 4개로 설치하였으며, 상기 상판(5)과 4개의 수직기둥(7) 사이에 각각 힘센서(7)가 설치되어 모두 4개의 힘센서를 설치하였다.The plurality of vertical pillars 6 were installed in four, and the force sensors 7 were installed between the upper plate 5 and the four vertical pillars 7, respectively, and all four force sensors were installed.

겉보기 질량은 가진점(driving-point)에서의 힘과 가속도의 함수로서 아래 식과 같이 표현된다.The apparent mass is expressed as the following equation as a function of the force and acceleration at the driving-point.

여기서,M(j )는 겉보기 질량,F(j )와a(j )는 각각 가진 점에서의 힘과 가속도를 나타낸다.here,M(j ) Is the apparent mass,F(j )Wowa(j Indicates the force and acceleration at each point.

집중 질량에 힘이 입력으로 주어지는 일반 기계계의 경우 계의 응답 특성은 이너턴스(inertance)를 통해 파악할 수 있으며, 겉보기 질량은 다음과 같이 이너턴스의 역수로 표현할 수 있다.In the case of a general mechanical system in which force is applied to the concentrated mass, the response characteristics of the system can be identified through inertance, and the apparent mass can be expressed as the inverse of the inner voltage as follows.

여기서,A(j )는 이너턴스를 나타낸다here,A(j ) Represents the inertance

기계계와 달리 인체는 특정 부위를 가진하고 관심있는 지점의 응답을 측정하는 것이 매우 어려우므로, 이너턴스를 이용해 응답 특성을 파악하는 것은 한계가 따른다.Unlike the mechanical system, it is very difficult for the human body to have a specific area and to measure the response at the point of interest, so it is difficult to determine the response characteristics by using intensities.

그러나, 도 2와 같이 베이스(base)에 변위가 아닌 힘이 입력으로 주어질 때 겉보기 질량은 식(3), (4)에서와 같이 계의 질량과 전달률의 곱으로 표현되므로, 이 경우 겉보기 질량은 계의 응답 특성을 나타낸다. 또한, 전달률의 피크 주파수가 계의 고유 진동수를 나타내므로 겉보기 질량의 피크 주파수도 고유 진동수라고 할 수 있다. 따라서 베이스 위에 인체가 앉아있는 경우, 베이스를 가진하여 얻은 겉보기 질량은 인체의 응답 특성을 나타내며, 겉보기 질량의 피크 주파수는 인체의 고유 진동수라고 할 수 있다.However, when a force other than displacement is given to the base as an input as shown in FIG. 2, the apparent mass is expressed as the product of the mass of the system and the transfer rate as shown in Equations (3) and (4). The response characteristics of the system are shown. In addition, since the peak frequency of the transmission rate represents the natural frequency of the system, the peak frequency of the apparent mass can also be said to be natural frequency. Therefore, when the human body sits on the base, the apparent mass obtained with the base represents the response characteristics of the human body, and the peak frequency of the apparent mass can be said to be the natural frequency of the human body.

따라서, 상기와 같은 인체의 겉보기 질량 측정장치에서 피실험자가 상기 상판(5)에 앉은 상태에서 상기 가진기(3)를 작동시켜 상기 힘센서(7)와 가속도센서(11)에서 나오는 출력을 계산하면, 인체의 겉보기 질량을 알 수 있게 되어 차량에서 발생하는 진동에 대한 인체의 응답특성을 분석할 수 있게 되는 것이다.Accordingly, when the test subject calculates the output from the force sensor 7 and the acceleration sensor 11 by operating the vibrator 3 while the test subject is sitting on the upper plate 5 in the apparent mass measuring apparatus of the human body as described above. As a result, the apparent mass of the human body can be known to analyze the response characteristics of the human body to vibrations generated by the vehicle.

참고로 도 3은 상기한 바와 같은 인체의 겉보기 질량 측정장치를 이용해 측정된 여러 피실험자의 겉보기 질량을 도시하고 있다.For reference, FIG. 3 illustrates the apparent masses of various test subjects measured using the apparent mass measuring apparatus of the human body as described above.

이상과 같이 본 발명에 의하면, 가진대의 진동에 대한 힘센서와 가속도센서의 출력으로부터 시트와 인체 사이 접촉면에서의 포괄적인 인체 응답특성을 묘사하는 인체의 겉보기 질량을 계산할 수 있도록 함으로써, 차량에서 발생하는 진동에 대한 인체의 응답특성을 효과적으로 분석할 수 있도록 한다.As described above, according to the present invention, it is possible to calculate the apparent mass of the human body, which describes the comprehensive human response characteristics at the contact surface between the seat and the human body, from the output of the force sensor and the acceleration sensor against vibration of the excitation belt, Effectively analyze the human body's response to vibration.

Claims (3)

가진대를 상하방향으로 가진시키도록 된 가진기와;An excitation device configured to excite the excitation stand in the up and down direction; 상기 가진대의 상측으로 피실험자가 앉도록 설치된 상판과;An upper plate installed to sit on the upper side of the excitation bag; 상기 상판을 상기 가진대에 대하여 지지하는 다수의 수직기둥과;A plurality of vertical pillars for supporting the upper plate with respect to the excitation stand; 상기 다수의 수직기둥과 상판 사이에 설치된 힘센서와;A force sensor installed between the plurality of vertical pillars and the upper plate; 상기 상판에 피실험자와의 사이에 개재되도록 설치된 가속도센서;An acceleration sensor installed on the top plate to be interposed between the test subject; 로 구성된 것을 특징으로 하는 인체의 겉보기 질량 측정장치.Appearance mass measuring device of the human body, characterized in that consisting of. 제1항에 있어서,The method of claim 1, 상기 상판과 가진대 사이의 수직거리는 피실험자가 상판 위에 편히 앉은 상태에서 상판으로부터 피실험자의 발바닥까지의 평균 높이로 된 것The vertical distance between the upper plate and the cradle is the average height from the upper plate to the sole of the test subject with the test subject sitting comfortably on the upper plate. 을 특징으로 하는 인체의 겉보기 질량 측정장치.Appearance mass measuring device of the human body, characterized in that. 제1항에 있어서,The method of claim 1, 상기 다수의 수직기둥은 4개가 설치되며;Four of the plurality of vertical pillars are installed; 상기 상판과 4개의 수직기둥 사이에 각각 힘센서가 설치된 것Force sensors are installed between the top plate and four vertical columns, respectively 을 특징으로 하는 인체의 겉보기 질량 측정장치.Appearance mass measuring device of the human body, characterized in that.
KR1020020074291A 2002-11-27 2002-11-27 apparent mass measurement device of a human body KR20040046372A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100822591B1 (en) * 2007-02-06 2008-04-16 위아 주식회사 Frequency response testing device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0843185A (en) * 1994-03-22 1996-02-16 Kito Eng 1992 Ltd Mass measuring method and device
JPH1030951A (en) * 1996-07-16 1998-02-03 Takeshi Mizuno Measuring apparatus for mass
JPH10339660A (en) * 1997-06-06 1998-12-22 Anritsu Corp Weighing system
JP2002082022A (en) * 2000-09-11 2002-03-22 Kawasaki Heavy Ind Ltd Dummy device
JP2002286744A (en) * 2001-03-22 2002-10-03 Kayaba Ind Co Ltd Device and method of measuring for acceleration

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0843185A (en) * 1994-03-22 1996-02-16 Kito Eng 1992 Ltd Mass measuring method and device
JPH1030951A (en) * 1996-07-16 1998-02-03 Takeshi Mizuno Measuring apparatus for mass
JPH10339660A (en) * 1997-06-06 1998-12-22 Anritsu Corp Weighing system
JP2002082022A (en) * 2000-09-11 2002-03-22 Kawasaki Heavy Ind Ltd Dummy device
JP2002286744A (en) * 2001-03-22 2002-10-03 Kayaba Ind Co Ltd Device and method of measuring for acceleration

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100822591B1 (en) * 2007-02-06 2008-04-16 위아 주식회사 Frequency response testing device

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