능동형 소음저감 기법을 위한 도로교통소음 예측 모형 평가 연구

안덕순,문성호,안오성,김도완 한국도로학회 2015 한국도로학회논문집 Vol.17 No.6

PURPOSES: The purpose of this thesis is to evaluate the effectiveness of an active noise cancellation (ANC) system in reducing the traffic noise level against frequencies from the predictive model developed by previous research. The predictive model is based on ISO 9613-2 standards using the Noble close proximity (NCPX) method and the pass-by method. This means that the use of these standards is a powerful tool for analyzing the traffic noise level because of the strengths of these methods. Traffic noise analysis was performed based on digital signal processing (DSP) for detecting traffic noise with the pass-by method at the test site. METHODS : There are several analysis methods, which are generally divided into three different types, available to evaluate traffic noise predictive models. The first method uses the classification standard of 12 vehicle types. The second method is based on a standard of four vehicle types. The third method is founded on 5 types of vehicles, which are different from the types used by the second method. This means that the second method not only consolidates 12 vehicle types into only four types, but also that the results of the noise analysis of the total traffic volume are reflected in a comparison analysis of the three types of methods. The constant percent bandwidth (CPB) analysis was used to identify the properties of different frequencies in the frequency analysis. A-weighting was applied to the DSP and to the transformation process from analog to digital signal. The root mean squared error (RMSE) was applied to compare and evaluate the predictive model results of the three analysis methods. RESULTS: The result derived from the third method, based on the classification standard of 5 vehicle types, shows the smallest values of RMSE and max and min error. However, it does not have the reduction properties of a predictive model. To evaluate the predictive model of an ANC system, a reduction analysis of the total sound pressure level (TSPL), dB(A), was conducted. As a result, the analysis based on the third method has the smallest value of RMSE and max error. The effect of traffic noise reduction was the greatest value of the types of analysis in this research. CONCLUSIONS : From the results of the error analysis, the application method for categorizing vehicle types related to the 12-vehicle classification based on previous research is appropriate to the ANC system. However, the performance of a predictive model on an ANC system is up to a value of traffic noise reduction. By the same token, the most appropriate method that influences the maximum reduction effect is found in the third method of traffic analysis. This method has a value of traffic noise reduction of 31.28 dB(A). In conclusion, research for detecting the friction noise between a tire and the road surface for the 12 vehicle types needs to be conducted to authentically demonstrate an ANC system in the Republic of Korea.

능동형 소음저감 기법을 위한 도로교통소음 예측 모형 평가 연구

안덕순,문성호,안오성,김도완 한국도로학회 2015 한국도로학회논문집 Vol.17 No.6

PURPOSES: The purpose of this thesis is to evaluate the effectiveness of an active noise cancellation (ANC) system in reducing the traffic noise level against frequencies from the predictive model developed by previous research. The predictive model is based on ISO 9613-2 standards using the Noble close proximity (NCPX) method and the pass-by method. This means that the use of these standards is a powerful tool for analyzing the traffic noise level because of the strengths of these methods. Traffic noise analysis was performed based on digital signal processing (DSP) for detecting traffic noise with the pass-by method at the test site. METHODS : There are several analysis methods, which are generally divided into three different types, available to evaluate traffic noise predictive models. The first method uses the classification standard of 12 vehicle types. The second method is based on a standard of four vehicle types. The third method is founded on 5 types of vehicles, which are different from the types used by the second method. This means that the second method not only consolidates 12 vehicle types into only four types, but also that the results of the noise analysis of the total traffic volume are reflected in a comparison analysis of the three types of methods. The constant percent bandwidth (CPB) analysis was used to identify the properties of different frequencies in the frequency analysis. A-weighting was applied to the DSP and to the transformation process from analog to digital signal. The root mean squared error (RMSE) was applied to compare and evaluate the predictive model results of the three analysis methods. RESULTS: The result derived from the third method, based on the classification standard of 5 vehicle types, shows the smallest values of RMSE and max and min error. However, it does not have the reduction properties of a predictive model. To evaluate the predictive model of an ANC system, a reduction analysis of the total sound pressure level (TSPL), dB(A), was conducted. As a result, the analysis based on the third method has the smallest value of RMSE and max error. The effect of traffic noise reduction was the greatest value of the types of analysis in this research. CONCLUSIONS : From the results of the error analysis, the application method for categorizing vehicle types related to the 12-vehicle classification based on previous research is appropriate to the ANC system. However, the performance of a predictive model on an ANC system is up to a value of traffic noise reduction. By the same token, the most appropriate method that influences the maximum reduction effect is found in the third method of traffic analysis. This method has a value of traffic noise reduction of 31.28 dB(A). In conclusion, research for detecting the friction noise between a tire and the road surface for the 12 vehicle types needs to be conducted to authentically demonstrate an ANC system in the Republic of Korea.

2003년부터 2005년까지 안이비인후피부과 학회지에 게재된 논문들의 통계적 분석 방법에 대한 고찰

김규석,남혜정,박외숙,김희정,차재훈,김윤범,Kim, Keoo-Seok,Nam, Hae-Jung,Park, Owe-Suk,Kim, Hee-Jeong,Cha, Jae-Hoon,Kim, Yoon-Bum 대한한방안이비인후피부과학회 2006 한방안이비인후피부과학회지 Vol.19 No.3

Objective : This study was carried out to investigate what type of assumption and conditions are needed for the application of various statistical techniques such as descriptive statistics, t-test, analysis of variance, correlation analysis, regression analysis and chi-square test and to evaluate that they are used correctly in the research process. Methods : One more methods of statistical analysis were used in 91 papers among 162 papers selected from the journal of Korean oriental medical Ophthalmology & Otolaryngology & Dermatology from April 2003 to December 2005. So we analysed the type of statistical analysis method in 91 papers(clinical and experimental study) and assessed the their validity of statistical techniques by the check list consisting of 34 items(3 items for validity assessment of descriptive statistics, 6 items for t-test, 7 items for analysis of variance, correlation analysis and regression analysis, respectively, 4 items for chi-square test) Results : 1. The type of 65(40%) cases is experimental trial, the type of 55(34%) cases is case report, the type of 26(16%) cases is clinical trial and the type of 16(10%) cases is review, in 91 papers using statistical techniques among 162 papers selected from the journal of Korean oriental medical Ophthalmology & Otolaryngology & Dermatol-ogy from April 2003 to December 2005. 2. One more methods of statistical analysis were used in the experimental and clinical study. When we classified 125 units using statistical analysis methods in 91 papers according to statistical techniques such as descriptive statistics, t-test, analysis of variance, correlation analysis, regression analysis and chi-square test, the number of independent sample t-test is 33(26%), the number of only descriptive statistics is 28(22%), the number of independent sample t-test is 33(26%), the number of only descriptive statistics is 28(22%), the number of one way ANOVA is 15(12%), the number of non-parametric test 10(8%). 3. After carrying out one way ANOVA, the number of using multiple comparison methods is 15(Scheffe:6(26%), Duncan:4(17%), Dunnett:3(13%), Tukey:2(9%)) out of 23 (total case carrying out one way ANOVA). 8(35%) out of 23 did not enforce multiple comparison methods after carrying out one way ANOVA. 4. From the assessment of validity about 63 cases using statistical techniques(except descriptive statistics), 5(8%) cases are proper, the other 58(92%) are improper, so we recognized a serious misuse of statistical application in our journal. 5. The number of case below 10 sample size in experimental and clinical study(except descriptive statistics) is 31(34%) and frequent. Also the number of case containing no mention of sample size is 41(45%, including culture study). 6. For example of statistical error, there are wrong choice of statistical technique, lack of check on standard assumption(such as standard distribution, equivariance, independence), and so on. Conclusions : We investigated the validity of statistical analysis methods in our journal by check list consisting of 34 items and suggested correct statistical analysis methods. We should practice the spread of education about statistical analysis methods and precis application, enhance objectivity and reliability of our thesis and further correspond with purpose of scientific study.

조형예술 작품 분석 유형 및 분석 방법 연구

윤민희 한국조형교육학회 2011 造形敎育 Vol.0 No.41

This study aims to present the analytic methods in terms of the type classification and types for the analysis of artworks. Today, in formative arts education, the analysis of artworks has been recognized as important, it placing importance on the logical analytical skills to artworks. Such a lot of graduate schools in art colleges recognize the importance of academic papers and thesis papers for plastic arts education and educate the research methodology on plastic arts through writing papers and seminars in plastic arts. This study has been done based on the status and needs of 'the artworks research' in plastic arts education and the types of analysis for artworks and analysis methods in plastic arts education in Korea. In a strict sense, the objective analysis does not exist on plastic arts, but this study classified into the following categories based on the research and analysis on methods for the classification of the professional research paper and books in domestic and foreign: aesthetics & art philosophy's analysis, art historical analysis, socio-cultural analysis, psychological analysis, research methods(survey: statistical methods), formative analysis. Each of the analysis methods was described based on these types classification. This study is meaningful to present the methodology for the artworks analysis and description of the plastic arts based on these researches. This study further presents a research model on the analysis of formative works of art through the specific analysis of artworks based on further ongoing research and detailed classification.

CCRT 방법과 대화분석 방법을 통한 내담자의 핵심갈등관계 분석

김경희,김인규 한국상담심리학회 2010 한국심리학회지 상담 및 심리치료 Vol.22 No.2

The current study aimed to analyze client's core conflictual relationship by Core Conflictual Relationship Theme(CCRT) and conversation analysis methods. Analysis was processed as follows: 1) abstracting relation episodes from counseling scripts; 2) rating client's CCRT; and 3) analyzing client's patterns by CCRT and writing down relation episodes based on conversation analysis method. Conversation analysis method produced more verbally and non-unverbal reaction characteristics than those of CCRT method did. Different response patterns found by the two analysis methods, alternative use of conversation analysis method in counseling, and cultural limitations of categories used in CCRT were discussed. Given advantages of the conversation analysis method and limitations of CCRT, authors claimed that conversation analysis method should be used more often for diverse counseling cases. The current study was valuable as the first attempt to analyze a counseling case by conversation analysis method rarely used in counseling study in Korea. 본 연구에서는 상담과정 중에 드러나는 내담자의 핵심갈등관계를 알아보기 위하여 CCRT (Core Conflictual Relationship Theme: CCRT) 방법과 대화분석 방법을 적용하여 내담자의 반응패턴을 분석하였다. 분석절차는 상담 축어록에서 관계일화를 추출하고 추출된 관계일화 속에서 나타나는 내담자의 CCRT를 평정하였다. 한편 추출된 관계일화를 대화분석 방법으로 전사한 다음 CCRT 구성요소에 따른 내담자의 반응특성을 분석하였다. 분석결과, 표준범주의 빈도를 중심으로 내담자의 반응패턴을 분석하는 CCRT 방법 이상으로 대화분석 방법에서 더욱 미세하고 풍부한 내담자의 언어적, 부수언어적인 반응특성들을 발견할 수 있었다. CCRT 방법과 대화분석 방법에 따라 다르게 발견되는 내담자의 핵심갈등관계에 대한 반응특성의 차이점을 중심으로 상담현장에서의 대화분석 전사자료를 활용한 사례분석, CCRT 표준범주의 문화적인 한계 등을 논의하였고, 추후 다양한 사례를 대상으로 하는 대화분석 방법을 적용한 사례연구가 필요한 점 등에 대해 제언하였다. 본 연구는 국내 상담학계에서 거의 시도되지 않았던 상담사례 연구에 대화분석 방법을 적용하였다는데 의의가 있다.

온라인 수업에서의 교사화법 평가 연구 : 메타 대화 분석 방식을 활용한 온라인 교사화법 수업을 중심으로

김윤정(Kim Yune Jung) 학습자중심교과교육학회 2021 학습자중심교과교육연구 Vol.21 No.14

목적 본 연구의 목적은 온라인 수업에서의 교사화법 평가 방안을 모색하는 것이다. 이를 위해 메타 대화 분석 방식의 온라인 교사화법 수업 모형을 적용한 교사화법 수업 사례를 제시하고 그 과정에서 이루어진 화법 평가분석 결과를 바탕으로 온라인 수업에서의 교사화법 평가 요소를 추출하고, 온라인 교사화법 평가 점검표를 제시하였다. 방법 인천 소재 교육대학교 학생 68명의 말하기에 대한 SWOT 분석, 3분 스피치 동료평가, 온라인 수업 시연에 대한 동료평가, 자기평가 자료를 분석 자료로 활용하였다. 평가에 대한 내용 분석을 통해 학습자들이 생각하는 온라인 교사화법 평가 기준, 평가 범주 및 세부 내용 요소를 추출하였다. 결과 분석 결과 온라인 교사화법 평가 범주는 비언어, 부정적 언어 습관, 말하기 불안, 준언어, 수업 운영, 수업자료, 학생 상호작용으로 구분되었다. 범주별로 세부 평가 요소가 구체적으로 추출되었으며, 이를 반영하여 온라인 교사화법 평가 점검표를 제시하였다. 온라인 교사화법 평가는 학생 입장을 고려한 공감적 평가, 교사화법 문제의 원인 파악에 도움을 주는 분석적 평가, 교사화법 개선 방안을 제안하는 처방적 평가, 향후 수업 기획에 도움을 주는 미래지향적 평가의 특징을 지니고 있음을 확인할 수 있었다. 결론 메타 대화 분석 단계를 활용한 온라인 교사학습 수업에서 실시된 교사화법 평가분석을 통해 온라인 교사화법의 평가 요소를 구체적으로 파악할 수 있었다. 온라인 교사화법 분석 단계에서 학습자들은 자신의 말하기를 성찰하는 과정을 거치게 되고, 준언어와 비언어에 대한 구체적이고 세부적 평가가 이루어지게 된다. 또한, 메타적으로 자신의 교사화법을 심층적으로 분석하면서 전반적인 수업 운영, 학습자와의 원활한 상호작용을 위한 효과적이고 통합적인 의사소통 전략으로서의 교사화법을 기획할 수 있다. Objectives The purpose of this study is to find a way to evaluate teacher communication methods in online classes. To this end, we present examples of teacher dialogue lessons conducted by applying the online teacher dialogue method class model of the meta dialogue analysis method, and extract the evaluation elements of teacher dialogue method in the online class based on the dialogue method evaluation analysis results made in the process. The purpose of this study is to draw implications for the evaluation of speech method. Methods The SWOT analysis, 3-minute speech peer evaluation, peer evaluation, and self-evaluation data of 68 students from Incheon National University of Education were analyzed. Through the content analysis of the evaluation, the online teacher communication method evaluation standards, evaluation categories, and detailed content elements that learners think were extracted. Results As a result of the analysis, the online teacher communication method evaluation categories were divided into non-verbal, negative language habits, speaking anxiety, anti-linguistics, class operation, class materials, and student interaction. Detailed evaluation elements for each category were specifically extracted, and the online teacher communication method evaluation checklist was presented by reflecting this. The online teacher speech evaluation is characterized by empathic evaluation that takes into account the student s position, an analytical evaluation that helps to identify the cause of the teacher speech problem, a prescriptive evaluation that suggests ways to improve the teacher speech, and a future-oriented evaluation that helps in planning future classes. I was able to confirm that I had it. Conclusions Through the evaluation analysis of the teacher communication method conducted in the online teacher learning class using the meta dialogue analysis stage, it was possible to identify the evaluation elements of the online teacher communication method in detail. In the online teacher communication method analysis stage, learners go through a process of reflecting on their own speech, and specific and detailed evaluations of anti-verbal and non-verbal are made. In addition, while meta-analyzing one s own teacher s communication method in depth, it is possible to plan the teacher communication method as an effective and integrated communication strategy for overall class operation and smooth interaction with learners.

학문 목적 한국어교육의 연구 유형 분류와 연구 방법의 동향 분석

나원주,주현하,김영규 국제한국어교육학회 2017 한국어 교육 Vol.28 No.1

Wonju Na, Hyunha Joo, Youngkyu Kim. 2017. A Classification of Research Types and Trend Analysis of Research Methods in Korean for Academic Purposes. Journal of Korean Language Education 28-1: 79-111. This study is a trend analysis study that discusses the current status and directions of research methods of KAP research. The existing trend ana lysis studies dealing with research methods have problems in that the classification criteria of the studies used are rough and different from each other, rendering comparison between studies being difficult, and do not comprehensively cover research methods of diversified KAP research. Therefore, this study examined the research methods of KAP research from a critical point of view and suggested a set of classification criteria and an analysis framework that can be used consistently in classification and analysis of future KAP research methods. Based on the theoretical background of second language studies and applied linguistics, this study revised and supplemented Brown (2015)’s research method types and selected 289 journals and theses/dissertations from 2012 to 2016 and classified them into a new analysis framework. The primary and secondary studies, which are the major categories, were 219 and 70, respectively, so it was confirmed that there were much more primary studies. The primary studies then were subdivided into 128 qualitative research studies, 142 survey research studies, and 23 quantitative research studies, pointing to the trend that survey and qualitative research methods were preferred. In the qualitative research approaches, there were 21 action research studies, which were used the most. In addition, such qualitative research approaches as case studies and narrative inquiries which were difficult to find in the past, have gradually increased, confirming that the diversification of research methods is becoming common. However, there were still many studies that did not explicitly put forward research questions and there were many studies that did not report reliability and effect sizes in quantitative research. Of the 23 quantitative studies, only 50% reported reliability, and only three reported effect sizes. In order to enable systematic reviews (meta-analysis) of quantitative research and expect quality improvement of research in future KAP research, reporting of quantitative research should be done more systematically. This study is meaningful in that a systematic and detailed analysis framework was proposed to classify various research methods in the future and that the problems and directions for improvement of the KAP research methods were discussed through the analysis of the research trend of the KAP studies for the last 5 years. (Ewha Womans University)

국내 헬스케어디자인 연구의 방법론적 특징

이은정 인제대학교 디자인연구소 2020 Journal of Integrated Design Research (JIDR) Vol.19 No.2

연구배경: 본 연구는 국내 헬스케어디자인(healthcare design) 연구의 방법론적 특징을 분석하는 데 목적이 있다. 이는 저자의 선행 메타분석(이은정 외 3, 2019a; 이은정 외 2, 2019b)을 심화한 후속 연구시리즈 논문으로, 메타분석(meta analysis)의 초점을 연구방법에 맞춘다. 이를 통해 국내 헬스케어디자인 연구에서 주류적인 연구방법은 무엇인지, 그리고 구체적으로 어떤 연구들에서 어떤 연구방법들이 선호되는지를 파악하고자 한다. 연구방법: 본 연구는 1차 메타분석(이은정 외 3, 2019a)에서 수집된 국내 헬스케어디자인 연구논문 총 1,117건을 대상으로 다음과 같은 분석을 수행한다. (1) 연구방법을 선행 메타분석에서보다 더욱 세분화하여 유형화한다. 우선 한 가지 방법만을 사용한 단일 연구방법(single-method)과 두 가지 이상의 방법을 동시에 사용한 다중 연구방법(multi-method)으로 구분한 후, 각각을 다시 몇 개의 세부 유형들로 구분한다. (2) 연구방법과 연구주제 간 교차분석을 통해 연구주제별로 어떤 유형의 연구방법이 가장 선호되는지를 파악한다. (3) 본 연구가 새롭게 조명하는 다중 연구방법들의 특징과 대표 연구사례를 분석한다. 연구결과: 국내 헬스케어디자인 연구의 방법론적 특징은 다음과 같다. (1) 디자인영역으로 대별되는 연구주제에 따라 주류적인 연구방법이 상이한데, 공간 연구들은 사례분석을, 시각정보 및 제품 연구들은 실험⋅제작을 가장 선호하는 경향이 있다. (2) 다중 방법을 사용한 연구들도 상당수 존재하는 가운데, 가장 선호되는 다중 방법의 세부 유형 또한 연구주제에 따라 상이하다. 제품 연구들에서 실험제작을 중점으로 한 다중 방법에 대한 선호도가 가장 높게 나타났다. (3) 다중 방법의 연구는 다양한 양적⋅질적 자료들을 풍부히 수집하여 분석을 다각화하고 심화할 가능성이 크다. 결론: 본 연구는 국내 헬스케어디자인 연구의 방법론적 특징을 처음으로 조명하였다는 의의를 지닌다. 이를 통해 연구영역 전반에 걸쳐 실증주의적 지향성이 있다는 점과 복수의 방법을 동시에 사용하는 다중 방법이 효과적일 수 있다는 점을 보였다. 후속 연구를 통해 더욱 다양한 조합의 다중 방법들을 고안하고, 연구를 안내하는 길잡이로서 리서치디자인의 모델들을 제시한다면, 방법상의 획기적 전환을 통해 헬스케어디자인 연구가 더욱 발전하는 계기를 마련할 수 있을 것이다. Background: This paper purports to analyze the methodological characteristics of Korean healthcare design research. This is a follow-up research series paper that deepens the author’s preceding meta analysis (Lee et al., 2019a; Lee et al., 2019b), focusing the analysis on the research method. With this, I identify what the mainstream research method is in Korean healthcare design research and what research methods are preferred in specific studies. Methods: This study performs the following analysis on a total of 1,117 Korean healthcare design research papers collected by the first meta analysis (Lee et al., 2019a). (1) Research methods are further subdivided and categorized than in preceding meta analysis. First, they are divided into a single-method using only one method and a multi-method using two or more methods simultaneously. Each method is then divided into several detailed types again. (2) Through cross-tabulation between research methods and research subjects, I identify which type of research method is most preferred for each research subject. (3) The characteristics and representative research cases of the multi-methods that this study newly highlights are analyzed. Result: The methodological characteristics of Korean healthcare design research are as follows. (1) The mainstream research methods differ depending on the research subjects classified into design areas. Spatial studies tend to favor case analysis, and visual information and product studies prefer experiment and production. (2) While there are a number of studies using multi-methods, the subtypes of the most preferred multi-methods also differ depending on the research subject. (3) The multi-method study is likely to diversify and deepen the analysis by richly collecting various quantitative and qualitative data. Conclusion: This study has significance that it was the first to highlight the methodological characteristics of Korean healthcare design research. Through this, it showed that there is an positivistic orientation throughout the research field and that multi-methods can be effective. If multi-methods of various combinations are devised and research design models are presented as a guide for research through follow-up studies, a breakthrough in methodology will provide a chance for further development of healthcare design research.

대응분석에서 상호평균법 활용에 대한 소고

김대학,정형철 한국자료분석학회 2013 Journal of the Korean Data Analysis Society Vol.15 No.6

Correspondence analysis is a statistical technique which project the rows and columns of contingency tables into lower dimension. It is conceptually similar to principal component analysis and widely applicable method to many areas. Benzecri (1973) considered correspondence analysis as an weighted principal component analysis. Hayashi considered correspondence analysis as a canonical correlation analysis. Both methods depend on the singular value decomposition and lead the same solution. On the while, reciprocal averaging method uses reconstitution formula based on numerical analysis and gives different solution from correspondence analysis or quantification method. In this paper, we introduce correspondence analysis, quantification and reciprocal averaging, respectively and investigate the properties of reciprocal averaging method. Scale change is also considered for the application of reciprocal averaging based on the result of correspondence analysis or quantification method. This is meaningful in the sense of re-quantification of result of correspondence analysis. 대응분석은 범주형자료의 행과 열을 낮은 차원에 사영하는 방법으로 활용성이 높은 통계적 방법이다. 저차원 공간 사영에 대해, Benzecri(1973)의 대응분석은 가중주성분분석으로, 수량화 3법은 정준상관분석으로 접근한다. 그런데 두 방법 모두 특이치 분해에 의존하며 동일한 해를 유도하는 특징을 지닌다. 반면, 상호평균법(reciprocal averaging)은 재형성 공식을 활용하는 수치해석 방법으로 대응분석의 해와 차이가 있다. 본 논문에서는 대응분석, 수량화 3법, 상호평균법 등의 방법론을 간략히 소개하고, 그 특징을 살펴보았다. 또한, 대응분석의 결과를 0~100 점 규모로 변경하기 위해, 대응분석이나 수량화 3의 결과를 초기값으로 사용하여, 상호평균법 알고리즘을 구동할 수 있음을 제시하였다. 이는 대응분석 결과를 재수량화 한다는 점에서 의의를 지닌다.

모드 해석 방법의 절차 개발 과정 소개 및 해석 결과 비교 (MODAL, FRF, KE)

조현성(Hyunsung Jo),최재영(Jaeyoung Choi),선광상(Kwangsang Seon),박상근(Sangkeun Park) 한국자동차공학회 2022 한국자동차공학회 부문종합 학술대회 Vol.2022 No.6

During vehicle structural analysis with CAE (Computer Aided Engineering) method using FEM (Finite Element Method), the first one is the MODAL analysis. For the detail of MODAL analysis, I will explain at main chapter. The more Degree of Freedom is used in MODAL analysis, The more real flexible body motion, it have. But it needs to use more memory for the process of analysis. So, in commercial program, the Lanczos method is preferred for proceeding of mode analysis with quickly and efficiently. Using this method, it is possible to set the desired frequency interval and it can specify the number of modes you want to see. Especially, it is possible to view and evaluate natural frequency values from low-order modes such as First mode and Second mode, which are the main interests of the user, and dynamic behavior in that mode in a short time. However, as the number of parts used in the analysis model increases, it is difficult to find an accurate mode value only in the region of interest. This is because the modes of multiple parts come together with the same mode value. Especially, if the dynamic behavior you want to see is a vibration caused by a specific part, mode analysis alone is not enough. Therefore, the FRF (Frequency Response Function) method is used, which is easy to see the behavior of a particular mode of interest only, but cannot see the dynamic behavior of the mode, and it is impossible to numerically compare exactly what percentage of the mode of the desired part. Therefore, the KE (Kinetic Energy) method is used which shows exactly how much percentage each part accounts for in each mode in total mode, so it is easy to find the desired mode, and then, through mode analysis, it is possible to immediately check whether it is the desired mode or not. Therefore, in the end, for accurate mode analysis, it was previously evaluated in only one method through MODAL analysis, but now all three additional methods need to be analyzed.