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The assembly simulation in tolerance analysis is one of the most important steps for the tolerance design of mechanical products. However, most assembly simulation methods are based on the rigid body assumption, and those assembly simulation methods considering deformation have a poor efficiency. This paper aims to propose a novel efficient and precise tolerance analysis method based on stable contact to improve the efficiency and reliability of assembly deformation simulation.

The proposed method comprehensively considers the initial rigid assembly state, the assembly deformation and the stability examination of assembly simulation to improve the reliability of tolerance analysis results. The assembly deformation of mating surfaces was first calculated based on the boundary element method with optimal initial assembly state, then the stability of assembly simulation results was assessed by the density-based spatial clustering of applications with noise algorithm to improve the reliability of tolerance analysis. Finally, combining the small displacement torsor theory, the tolerance scheme was statistically analyzed based on sufficient samples.

A case study of a guide rail model demonstrated the efficiency and effectiveness of the proposed method.

The present study only considered the form error when generating the skin model shape, and the waviness and the roughness of the matching surface were not considered.

To the best of the authors’ knowledge, the proposed method is original in the assembly simulation considering stable contact, which can effectively ensure the reliability of the assembly simulation while taking into account the computational efficiency.

Existing studies have paid less attention to the impact of knowledge accumulation on digital transformation and its boundary conditions. Hence, this study aims to investigate the effects of ambidextrous knowledge accumulation on manufacturing digital transformation under the moderation of dynamic capability.

This study divides knowledge accumulation into exploratory and exploitative knowledge accumulation and divides dynamic capability into alliance management capability and new product development capability. To clarify the relationship among ambidextrous knowledge accumulation, dynamic capability and manufacturing digital transformation, the authors collect data from 421 Chinese listed manufacturing enterprises from 2016 to 2020 and perform analysis by multiple hierarchical regression method, heterogeneity test and robustness analysis.

The empirical results show that both exploratory and exploitative knowledge accumulation can significantly promote manufacturing digital transformation. Keeping ambidextrous knowledge accumulation in parallel is more conducive than keeping single-dimensional knowledge accumulation. Besides, dynamic capability positively moderates the relationship between ambidextrous knowledge accumulation and manufacturing digital transformation. Moreover, the heterogeneity test shows that the impact of ambidextrous knowledge accumulation and dynamic capabilities on manufacturing digital transformation varies widely across different industry segments or different regions.

First, this paper shifts attention to the role of ambidextrous knowledge accumulation in manufacturing digital transformation and expands the connotation and extension of knowledge accumulation. Second, this study reveals that dynamic capability is a vital driver of digital transformation, which corroborates the previous findings of dynamic capability as an important driver and contributes to enriching the knowledge management literature. Third, this paper provides a comprehensive micro measurement of ambidextrous knowledge accumulation and digital transformation based on the development characteristics of the digital economy era, which provides a theoretical basis for subsequent research.

The ionization of the air surrounding the phase conductor in high-voltage transmission lines results in a phenomenon known as the Corona effect. To avoid this, Corona rings are used to dampen the electric field imposed on the insulator. The purpose of this study is to present a fast and intelligent surrogate model for determination of the electric field imposed on the surface of a 120 kV composite insulator, in presence of the Corona ring.

Usually, the structural design parameters of the Corona ring are selected through an optimization procedure combined with some numerical simulations such as finite element method (FEM). These methods are slow and computationally expensive and thus, extremely reducing the speed of optimization problems. In this paper, a novel surrogate model was proposed that could calculate the maximum electric field imposed on a ceramic insulator in a 120 kV line. The surrogate model was created based on the different scenarios of height, radius and inner radius of the Corona ring, as the inputs of the model, while the maximum electric field on the body of the insulator was considered as the output.

The proposed model was based on artificial intelligence techniques that have high accuracy and low computational time. Three methods were used here to develop the AI-based surrogate model, namely, Cascade forward neural network (CFNN), support vector regression and K-nearest neighbors regression. The results indicated that the CFNN has the highest accuracy among these methods with 99.81% R-squared and only 0.045468 root mean squared error while the testing time is less than 10 ms.

To the best of the authors’ knowledge, for the first time, a surrogate method is proposed for the prediction of the maximum electric field imposed on the high voltage insulators in the presence Corona ring which is faster than any conventional finite element method.

The built environment is taking enormous leaps towards its digitalization. Computer-aided tools such as building information modeling (BIM) are found in the forefront of this evolution, playing a critical role in creating the foundations for the upcoming development of smart low-carbon cities. However, the potential of BIM is still untapped – links will need to be created among the available and forthcoming methodologies under one integral operational system. The purpose of this paper is to present an integrated BIM-based life cycle-oriented framework for achieving sustainable constructions at the pre-construction phase. The developed framework represents an example of the approaches that the construction industry will need to adopt to integrate the different tools under an integrated smart city context.

The methodological approach follows the development of four same-volume different-configuration three-dimensional BIM designs, which are coupled with life cycle assessment (LCA) tools for establishing sustainable building design.

The results of this paper indicated that the choice of building design and shape can play a significant role in reducing the embodied energy and embodied carbon of buildings, achieving a reduction of up to 15% compared to a reference building of same volume and gross floor area.

The originality of this paper is found in its approach application by coupling three-dimensional BIM models with LCA data, the use of reinforcement detailing in an nD BIM study and the employment of country-specific LCA databases.

This paper aims to answer the question of the future of work-from-home (WFH) from the position of productivity and employee well-being. In this research, the authors studied the future of WFH by analyzing perceived home productivity and work–life balance (WLB) in the WFH environment. This paper attempts to say that WFH is here to stay, and business leaders should acknowledge this fact and adjust their strategy.

The authors used a heterogeneous sampling method, surveying 1,157 employees in Mexico on productivity and WLB. The authors did three independent interventions in different pandemic stages: beginning – in 2020, peaking – in 2021, and calming down – in 2022. The authors used contingency table analysis to research the influence of perceived productivity and WLB in WFH on employees’ propensity to WFH.

The results show that employees perceive productivity the same or higher when WFH and WLB same or better. The findings of this study are a wake-up call for managers who refuse to embrace changes in employees’ perceptions and needs. Companies refusing to acknowledge the existing need for WFH may face significant challenges in terms of employee satisfaction and retention.

This study contributes to the broader literature by addressing whether WFH is here to stay. The dynamics of returning to office vary from country to country, industry to industry and business to business. This paper is an answer to the future of WFH for Mexico and the Latin American region.

Este artículo tiene como objetivo responder a la pregunta sobre la relevancia del futuro del trabajo desde casa (WFH por sus siglas en Inglés) desde la perspectiva de la productividad y el bienestar de los colaboradores. En esta investigación, se estudia el futuro del trabajo desde casa analizando la productividad percibida y el equilibrio entre la vida laboral y personal en el entorno del trabajo desde casa. Este documento intenta decir que el trabajo desde casa llegó para quedarse y que los líderes empresariales deberían reconocer este hecho y ajustar sus estrategias.

Se ha utilizado un método de muestreo heterogéneo, encuestando a 1157 colaboradores que trabajan en México sobre el tema de productividad y balance vida-trabajo (WLB por sus siglas en Inglés). Se realizaron tres intervenciones independientes en diferentes etapas de la pandemia del COVID-19: al inicio (2020), un año despúes que fué el pico (2021) y finalmente cuando está a la baja y en calma (2022). Se utilizaron diversas herramientas estadísticas como el análisis de tablas de contingencia para investigar la influencia de la productividad percibida y el WLB en el trabajo desde casa en los colaboradores que son propensos a trabajar desde casa.

Los resultados muestran que los colaboradores perciben la productividad igual o mayor cuando trabajan desde casa y el balance vida-trabajo son iguales o en ocasiones mejores. Los hallazgos de este estudio son para llamar la atención de los directivos y gerentes que se niegan a aceptar que han existido cambios y ajustes en las percepciones y necesidades de los colaboradores en las maneras de realizar el trabajo. Las empresas que se niegan a reconocer la necesidad existente de trabajar desde casa pueden enfrentar desafíos importantes en el corto plazo en términos de satisfacción y retención de los empleados.

Este estudio contribuye para ampliar la literatura y poder abordar el tema de las modalidades de trabajo, en particular para profundizar si el trabajo desde casa (WFH) llegó para quedarse. Así mismo, se puede mencionar que la dinámica del regreso a las oficinas puede variar de un país a otro, de una industria a otra y de una empresa a otra, ofreciendo una variedad de reflexiones y puntos de vistas, finalmente este documento es una respuesta a la reflexión sobre el futuro del trabajo, los beneficios del trabajo en casa para México y para la región de LATAM.

Este artigo pretende responder à questão sobre a relevância do futuro do trabalho a partir de casa (WFH, Work from home, por suas siglas em inglês) na perspetiva da produtividade e do bem-estar dos colaboradores. Nesta investigação, o futuro do trabalho a partir de casa é estudado através da análise da produtividade percebida e do equilíbrio entre vida pessoal e profissional no ambiente de trabalho a partir de casa. Este artigo tenta dizer que o trabalho a partir de casa veio para ficar e que os líderes empresariais devem reconhecer este facto e ajustar as suas estratégias.

Foi utilizado um método de amostragem heterogêneo, pesquisando 1.157 funcionários que trabalham no México sobre o tema produtividade e equilíbrio entre vida profissional e pessoal (WLB). Foram realizadas três intervenções independentes em diferentes fases da pandemia da COVID-19: no início (2020), um ano após o pico (2021) e finalmente quando estava em declínio e calma (2022). Várias ferramentas estatísticas, como a análise de tabelas de contingência, foram utilizadas para investigar a influência da produtividade percebida e do WLB no trabalho em casa em funcionários propensos a trabalhar em casa.

Os resultados mostram que os colaboradores percebem uma produtividade igual ou superior quando trabalham a partir de casa e que o equilíbrio entre vida pessoal e profissional é igual ou por vezes melhor. Os resultados deste estudo são para chamar a atenção de diretores e gestores que se recusam a aceitar que tenham havido mudanças e ajustes nas percepções e necessidades dos funcionários nas formas de fazer o trabalho. As empresas que se recusam a reconhecer a necessidade existente de trabalhar a partir de casa podem enfrentar desafios significativos a curto prazo em termos de satisfação e retenção dos colaboradores.

Este estudo contribui para ampliar a literatura e poder abordar a questão das modalidades de trabalho, em particular para aprofundar se o trabalho em casa (WFH) veio para ficar. Da mesma forma, pode-se mencionar que a dinâmica de retorno aos escritórios pode variar de um país para outro, de uma indústria para outra e uma empresa para outra, oferecendo uma variedade de reflexões e pontos de vista. Em última análise, este documento é um resposta. para refletir sobre o futuro do trabalho, os benefícios de trabalhar em casa para o México e a região LATAM.

Digital twin (DT) and building information modeling (BIM) are interconnected in some ways. However, there has been some misconception about how DT differs from BIM. As a result, industry professionals reject DT even in BIM-based construction projects due to reluctance to innovate. Furthermore, researchers have repeatedly developed tools and techniques with the same goals using DT and BIM to assist practitioners in construction projects. Therefore, this study aims to assist industry professionals and researchers in understanding the relationship between DT and BIM and synthesize existing works on DT and BIM.

A systematic review was conducted on published articles related to DT and BIM. A total record of 54 journal articles were identified and analyzed.

The analysis of the selected journal articles revealed four types of relationships between DT and BIM: BIM is a subset of DT, DT is a subset of BIM, BIM is DT, and no relationship between BIM and DT. The existing research on DT and BIM in construction projects targets improvements in five areas: planning, design, construction, operations and maintenance, and decommissioning. In addition, several areas have emerged, such as developing geo-referencing approaches for infrastructure projects, applying the proposed methodology to other construction geometries and creating 3D visualization using color schemes.

This study contributed to the existing body of knowledge by overviewing existing research related to DT and BIM in construction projects. Also, it reveals research gaps in the body of knowledge to point out directions for future research.